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Articles 1051 - 1080 of 22111
Full-Text Articles in Entire DC Network
The Gyrokinetic Dispersion Relation Of Microtearing Modes In Collisionless Toroidal Plasmas, Benjamin D G Chandran, A A. Schekochihin
The Gyrokinetic Dispersion Relation Of Microtearing Modes In Collisionless Toroidal Plasmas, Benjamin D G Chandran, A A. Schekochihin
Faculty Publications
We solve the linearized gyrokinetic equation, quasineutrality condition and Ampere's law to obtain the dispersion relation of microtearing modes (MTMs) in collisionless low- $\beta$ toroidal plasmas. Consistent with past studies, we find that MTMs are driven unstable by the electron temperature gradient and that this instability drive is mediated by magnetic drifts. The dispersion relation that we derive can be evaluated numerically very quickly and may prove useful for devising strategies to mitigate MTM instability in fusion devices.
Doubly Charged Dimers And Trimers Of Heavy Noble Gases, Gabriel Schöpfer, Stefan Bergmeister, Milan Ončák, Ianessa Stromberg, Masoomeh Mahmoodi-Darian, Paul Scheier, Olof Echt, Elisabeth Gruber
Doubly Charged Dimers And Trimers Of Heavy Noble Gases, Gabriel Schöpfer, Stefan Bergmeister, Milan Ončák, Ianessa Stromberg, Masoomeh Mahmoodi-Darian, Paul Scheier, Olof Echt, Elisabeth Gruber
Faculty Publications
Many doubly charged heteronuclear dimers are metastable or even thermodynamically stable with respect to charge separation. Homonuclear dicationic dimers, however, are more difficult to form. He22+ was the first noble gas dimer predicted to be metastable and, decades later, observed. Ne22+ is the only other dicationic noble gas dimer that has been detected so far. Here, we present a novel approach to form fragile dicationic species, by post-ionization of singly charged ions that are embedded in helium nanodroplets (HNDs). Bare ions are then extracted by colliding the HNDs with helium gas. We detect homonuclear doubly charged …
Predicting Solar Weather With Machine Learning, Beth Potier
Predicting Solar Weather With Machine Learning, Beth Potier
UNH Today Archive
No abstract provided.
Examining The Utility Of The Early Childhood Development Index (Ecdi) Among Children In The Nigeria Context, Ngozi V. Enelamah, Smitha Rao, Margaret Lombe, Mansoo Yu, Chrisann Newransky, Chrisann Newransky, Melissa L. Villodas, Andrew Foell, Von Nebbitt
Examining The Utility Of The Early Childhood Development Index (Ecdi) Among Children In The Nigeria Context, Ngozi V. Enelamah, Smitha Rao, Margaret Lombe, Mansoo Yu, Chrisann Newransky, Chrisann Newransky, Melissa L. Villodas, Andrew Foell, Von Nebbitt
Faculty Publications
An estimated 6 million children under the age of five in Nigeria (out of nearly 31 million) risk not reaching their full developmental potential. The dearth of context-relevant measures poses a challenge to the planning and implementation of effective interventions. This study assesses the utility of the Early Childhood Development Index (ECDI) in Nigeria. We used the Multiple Indicator Cluster Surveys to track progress among 3- to 4-year-old children (n = 11,073); 3-year-old, 51%; female, 49%. Using random calibration samples, the results from psychometric tests indicate that while over half of the children were on track in their development based …
Escalating Uncertainties Require Institutional Transformation To Support Epistemological Pluralism, Jennifer F. Brewer, Holly M. Hapke
Escalating Uncertainties Require Institutional Transformation To Support Epistemological Pluralism, Jennifer F. Brewer, Holly M. Hapke
Faculty Publications
As marine conservation challenges intensify with accelerating anthropogenic change, informing public deliberation about difficult trade-offs requires commitment to epistemological pluralism. Robust integration of social sciences can improve the realism of policy debates by explicating a range of potential social-ecological outcomes. Funders have long incentivized interdisciplinarity, yet progress is insufficient and embedded in a political economy of knowledge production. Failure to substantively address inequities can stymie collaboration. Institutional expectations for promotion and tenure rarely recognize the extent to which deep engagement transforms epistemological norms and scholarly outputs. Several organizations and programs offer relevant experience and resources. Senior scholars can use their …
Escalating Uncertainties Require Institutional Transformation To Support Epistemological Pluralism, Jennifer F. Brewer, Holly M. Hapke
Escalating Uncertainties Require Institutional Transformation To Support Epistemological Pluralism, Jennifer F. Brewer, Holly M. Hapke
Faculty Publications
As marine conservation challenges intensify with accelerating anthropogenic change, informing public deliberation about difficult trade-offs requires commitment to epistemological pluralism. Robust integration of social sciences can improve the realism of policy debates by explicating a range of potential social-ecological outcomes. Funders have long incentivized interdisciplinarity, yet progress is insufficient and embedded in a political economy of knowledge production. Failure to substantively address inequities can stymie collaboration. Institutional expectations for promotion and tenure rarely recognize the extent to which deep engagement transforms epistemological norms and scholarly outputs. Several organizations and programs offer relevant experience and resources. Senior scholars can use their …
Faculty Spotlight: Remington Moll, Sarah Schaier
Faculty Spotlight: Remington Moll, Sarah Schaier
UNH Today Archive
No abstract provided.
Social Infrastructure And Health Among Mid-Life And Older Adults In Rural America: An Environmental Scan Of Existing Data, Danielle Rhubart, Megan Henly, M. Aaron Guest, Carrie Henning-Smith, Mary Anne Powell
Social Infrastructure And Health Among Mid-Life And Older Adults In Rural America: An Environmental Scan Of Existing Data, Danielle Rhubart, Megan Henly, M. Aaron Guest, Carrie Henning-Smith, Mary Anne Powell
Institute on Disability
Growing evidence shows a relationship between social infrastructure (SI) – the physical places where people gather outside of home and work – and health. However, existing data sources for rigorously investigating this relationship are limited, especially for rural areas. Therefore, we conducted an environmental scan of existing data for furthering research on this topic, with a focus on the rural United States (U.S.). A total of 10 datasets met inclusion criteria. Key information was collated from websites and reviewed by data administrators. We summarize key features of these datasets, including available measures of geography/rurality, SI availability and utilization, and physical, …
Simulations Of Langmuir-Wave Emission By Magnetic Holes In The Solar Wind, Jingting Liu, Daniel Verscharen, Jesse Coburn, Jeffersson Agudelo, Kai Germaschewski, Hamish Reid, Georgios Nicolaou, Christopher Owen
Simulations Of Langmuir-Wave Emission By Magnetic Holes In The Solar Wind, Jingting Liu, Daniel Verscharen, Jesse Coburn, Jeffersson Agudelo, Kai Germaschewski, Hamish Reid, Georgios Nicolaou, Christopher Owen
Faculty Publications
Langmuir waves are frequently detected in the solar wind and affect the energetics of the plasma electrons. Previous observational studies have found Langmuir waves associated with magnetic holes in the solar wind. In our work, we aim to understand the connection between magnetic holes and these waves. The Langmuir instability is a well-known consequence of electron beams in plasmas. We use particle-in-cell (PIC) simulations of a collisionless electron-ion plasma in a magnetic hole structure. We study the triggering of Langmuir waves by inhomogeneous beam instabilities in this configuration. Our simulations reveal patterns that suggest that injecting a beam into the …
Simulations Of Langmuir-Wave Emission By Magnetic Holes In The Solar Wind, Jingting Liu, Daniel Verscharen, Jesse Coburn, Jeffersson Agudelo, Kai Germaschewski, Hamish Reid, Georgios Nicolaou, Christopher Owen
Simulations Of Langmuir-Wave Emission By Magnetic Holes In The Solar Wind, Jingting Liu, Daniel Verscharen, Jesse Coburn, Jeffersson Agudelo, Kai Germaschewski, Hamish Reid, Georgios Nicolaou, Christopher Owen
Faculty Publications
Langmuir waves are frequently detected in the solar wind and affect the energetics of the plasma electrons. Previous observational studies have found Langmuir waves associated with magnetic holes in the solar wind. In our work, we aim to understand the connection between magnetic holes and these waves. The Langmuir instability is a well-known consequence of electron beams in plasmas. We use particle-in-cell (PIC) simulations of a collisionless electron-ion plasma in a magnetic hole structure. We study the triggering of Langmuir waves by inhomogeneous beam instabilities in this configuration. Our simulations reveal patterns that suggest that injecting a beam into the …
Examining The Impact Of Stream Permanence On Headwater Stream Carbon Emissions, Hannah D. Conroy, Erin R. Hotchkiss, Kaelin M. Cawley, Keli Goodman, Jeremy B. Jones, Wilfred M. Wollheim, David Butman
Examining The Impact Of Stream Permanence On Headwater Stream Carbon Emissions, Hannah D. Conroy, Erin R. Hotchkiss, Kaelin M. Cawley, Keli Goodman, Jeremy B. Jones, Wilfred M. Wollheim, David Butman
Faculty Publications
Quantifying headwater stream carbon emissions is important for our understanding of the global carbon cycle because these emissions (an estimated 0.93-1.15 Pg C year) can be substantial compared to the terrestrial flux. Headwater stream networks can have high emissions due to their coupling with the terrestrial environment and high turbulence with some estimates predicting headwater stream networks can contribute 70% of the global riverine stream emissions. These carbon emissions are challenging to predict, especially with regards to headwater stream network spatiotemporal heterogeneity. The majority of headwater streams exhibit changes in stream network area on a seasonal basis, and these locations …
Using Stereo-A Data From April To November 2023 As A Sub-L1 Monitor, Eva Weiler, Christian Möstl, Emma E. Davies, Tanja Amerstorfer, Ute V. Amerstorfer, Hannah T. Rüdisser, Rachel L. Bailey, Astrid Veronig, Timothy Horbury, Noé Lugaz, Justin Le Louëdec, Maike Bauer
Using Stereo-A Data From April To November 2023 As A Sub-L1 Monitor, Eva Weiler, Christian Möstl, Emma E. Davies, Tanja Amerstorfer, Ute V. Amerstorfer, Hannah T. Rüdisser, Rachel L. Bailey, Astrid Veronig, Timothy Horbury, Noé Lugaz, Justin Le Louëdec, Maike Bauer
Faculty Publications
Sub-L1 monitors are currently being researched in mission concepts for small satellites and may be deployed on distant retrograde orbits around the Earth in the future. Depending on the location of the sub-L1 monitor, the lead time for the arrival of coronal mass ejections (CMEs) and for determining their geo-effectiveness could be prolonged. If the sub-L1 monitor was to orbit the Earth at a distance of 0.05 AU, as is proposed for the MIIST mission, for example, Dst predictions could be made up to 5 hours in advance. The close encounter of STEREO-A and Wind from April 2023 to November …
The Space Weather Research On Coronal Mass Ejections Required Before Operational Sub-L1 Monitors, Noé Lugaz, Florian Regnault, Sahanaj Banu, Nada Al-Haddad, Bin Zhuang, Christina Lee, Charles J. Farrugia, Christian Möstl, Reka M. Winslow, Emma Davies, Camilla Scolini, Wenyuan Yu, Antoinette B. Galvin
The Space Weather Research On Coronal Mass Ejections Required Before Operational Sub-L1 Monitors, Noé Lugaz, Florian Regnault, Sahanaj Banu, Nada Al-Haddad, Bin Zhuang, Christina Lee, Charles J. Farrugia, Christian Möstl, Reka M. Winslow, Emma Davies, Camilla Scolini, Wenyuan Yu, Antoinette B. Galvin
Faculty Publications
In-situ measurements from the Sun-Earth Lagrangian L1 point typically provide a 20-minute to 1-hour advanced warning of incoming interplanetary (IP) shocks, magnetic clouds before impact at the nose of Earth's magnetopause. Sub-L1 monitors may provide measurements sunward of the L1 point to improve the lead times for such transients to several hours, and various mission architecture have been proposed for more than 25 years. Because CMEs and shocks do not propagate exactly radially, the location of such a monitor with respect to the Sun-Earth line is a key parameter to take into account when designing such missions. Here, we highlight …
Using Stereo-A Data From April To November 2023 As A Sub-L1 Monitor, Eva Weiler, Christian Möstl, Emma E. Davies, Tanja Amerstorfer, Ute V. Amerstorfer, Hannah T. Rüdisser, Rachel L. Bailey, Astrid Veronig, Timothy Horbury, Noé Lugaz, Justin Le Louëdec, Maike Bauer
Using Stereo-A Data From April To November 2023 As A Sub-L1 Monitor, Eva Weiler, Christian Möstl, Emma E. Davies, Tanja Amerstorfer, Ute V. Amerstorfer, Hannah T. Rüdisser, Rachel L. Bailey, Astrid Veronig, Timothy Horbury, Noé Lugaz, Justin Le Louëdec, Maike Bauer
Faculty Publications
Sub-L1 monitors are currently being researched in mission concepts for small satellites and may be deployed on distant retrograde orbits around the Earth in the future. Depending on the location of the sub-L1 monitor, the lead time for the arrival of coronal mass ejections (CMEs) and for determining their geo-effectiveness could be prolonged. If the sub-L1 monitor was to orbit the Earth at a distance of 0.05 AU, as is proposed for the MIIST mission, for example, Dst predictions could be made up to 5 hours in advance. The close encounter of STEREO-A and Wind from April 2023 to November …
Energy Transfer In The Solar Wind: The Interplay Between Turbulence And Kinetic Instabilities., Simon Opie, Daniel Verscharen, Christopher Chen, Christopher Owen, Philip A. Isenberg, Luca Sorriso-Valvo, Luca Franci, Lorenzo Matteini
Energy Transfer In The Solar Wind: The Interplay Between Turbulence And Kinetic Instabilities., Simon Opie, Daniel Verscharen, Christopher Chen, Christopher Owen, Philip A. Isenberg, Luca Sorriso-Valvo, Luca Franci, Lorenzo Matteini
Faculty Publications
Precisely how and where energy transfer between scales in the Solar Wind takes place remains an open question. We use the occurrence of conditions predicted by linear theory to promote the growth of kinetic instabilities, to infer how turbulence drives temperature anisotropies. We analyse Solar Orbiter data by applying the measure of local energy transfer (LET) derived from the Politano and Pouquet exact law to identify the relative distributions of energy transfer processes in the solar wind. We quantify these processes with the application of a radial rate of strain computed from single spacecraft data, a measure that we define …
Energy Transfer In The Solar Wind: The Interplay Between Turbulence And Kinetic Instabilities., Simon Opie, Daniel Verscharen, Christopher Chen, Christopher Owen, Philip A. Isenberg, Luca Sorriso-Valvo, Luca Franci, Lorenzo Matteini
Energy Transfer In The Solar Wind: The Interplay Between Turbulence And Kinetic Instabilities., Simon Opie, Daniel Verscharen, Christopher Chen, Christopher Owen, Philip A. Isenberg, Luca Sorriso-Valvo, Luca Franci, Lorenzo Matteini
Faculty Publications
Precisely how and where energy transfer between scales in the Solar Wind takes place remains an open question. We use the occurrence of conditions predicted by linear theory to promote the growth of kinetic instabilities, to infer how turbulence drives temperature anisotropies. We analyse Solar Orbiter data by applying the measure of local energy transfer (LET) derived from the Politano and Pouquet exact law to identify the relative distributions of energy transfer processes in the solar wind. We quantify these processes with the application of a radial rate of strain computed from single spacecraft data, a measure that we define …
Tier 2 Monitoring In The Great Bay Estuary, Nh/Me Field Season 2022, Trevor Mattera, Lara Martin, Amanda Giacchetti, Kalle Matso, Tom Gregory, David M. Burdick
Tier 2 Monitoring In The Great Bay Estuary, Nh/Me Field Season 2022, Trevor Mattera, Lara Martin, Amanda Giacchetti, Kalle Matso, Tom Gregory, David M. Burdick
PREP Reports & Publications
No abstract provided.
State Taps Unh For Nh Outdoor Recreation Management Plan, Beth Potier, Jeremy Gasowski
State Taps Unh For Nh Outdoor Recreation Management Plan, Beth Potier, Jeremy Gasowski
UNH Today Archive
No abstract provided.
Virtual Leadership The Challenges And Strategies To Overcome Them, Amberlee Marie Smock
Virtual Leadership The Challenges And Strategies To Overcome Them, Amberlee Marie Smock
M.S. in Leadership
The purpose of this paper is to delve into the challenges faced by virtual leaders and provide recommendations for overcoming those challenges in order to enhance team performance and engagement in a remote work setting. I selected this research because I started a new job at the height of covid-19 and I was sent home to do a job I had no idea how to do. My research aims to contribute to the development of practical guidelines for virtual leaders and organizations. The challenges include communication and collaboration, trust, rapport and information sharing, managing conflicts, a sense of belonging and …
Unh Faculty Senate Motion # Xxviii-M6 Basic Information For Course Syllab, Faculty Senate
Unh Faculty Senate Motion # Xxviii-M6 Basic Information For Course Syllab, Faculty Senate
Faculty Senate Motions
No abstract provided.
University Of New Hampshire 2023-2024 Faculty Senate Xxviii - March 4, 2024 Minutes Summary, Faculty Senate
University Of New Hampshire 2023-2024 Faculty Senate Xxviii - March 4, 2024 Minutes Summary, Faculty Senate
Faculty Senate Agendas & Minutes
No abstract provided.
Euhforia Modelling Of The Sun-Earth Chain Of The Magnetic Cloud Of 28 June 2013, G Prete, A Niemela, B Schmieder, Nada Al-Haddad, Bin Zhuang, F Lepreti, V Carbone, S Poedts
Euhforia Modelling Of The Sun-Earth Chain Of The Magnetic Cloud Of 28 June 2013, G Prete, A Niemela, B Schmieder, Nada Al-Haddad, Bin Zhuang, F Lepreti, V Carbone, S Poedts
Faculty Publications
Context. Predicting geomagnetic events starts with an understanding of the Sun-Earth chain phenomena in which (interplanetary) coronal mass ejections (CMEs) play an important role in bringing about intense geomagnetic storms. It is not always straightforward to determine the solar source of an interplanetary coronal mass ejection (ICME) detected at 1 au. Aims. The aim of this study is to test by a magnetohydrodynamic (MHD) simulation the chain of a series of CME events detected from L1 back to the Sun in order to determine the relationship between remote and in situ CMEs. Methods. We analysed both remote-sensing observations and in …
X-Ray Polarimetry Of The Dipping Accreting Neutron Star 4u 1624–49, M Lynne Saade, Philip Kaaret, Andrea Gnarini, Juri Poutanen, Francesco Ursini, Stefano Bianchi, Anna Bobrikova, Fabio La Monaca, Alessandro Di Marco, Fiamma Capitanio, Alexandra Veledina, Iván Agudo, Lucio A. Antonelli, Matteo Bachetti, Luca Baldini, Wayne H. Baumgartner, Ronaldo Bellazzini, Stephen D. Bongiorno, Raffaella Bonino, Alessandro Brez, Niccolò Bucciantini, Simone Castellano, Elisabetta Cavazzuti, Chien-Ting Chen, Stefano Ciprini, Enrico Costa, Alessandra De Rosa, Ettore Del Monte, Laura Di Gesu, Niccolò Di Lalla, Immacolata Donnarumma, Victor Doroshenko, Michal Dovčiak, Steven R. Ehlert, Teruaki Enoto, Yuri Evangelista, Sergio Fabiani, Riccardo Ferrazzoli, Javier A. García, Shuichi Gunji, Kiyoshi Hayashida, Jeremy Heyl, Wataru Iwakiri, Svetlana G. Jorstad, Vladimir Karas, Fabian Kislat, Takao Kitaguchi, Jeffery J. Kolodziejczak, Henric Krawczynski, Luca Latronico, Ioannis Liodakis, Simone Maldera, Alberto Manfreda, Frédéric Marin, Andrea Marinucci, Alan P. Marscher, Herman L. Marshall, Francesco Massaro, Giorgio Matt, Ikuyuki Mitsuishi, Tsunefumi Mizuno, Fabio Muleri, Michela Negro, Chi-Yung Ng, Stephen L. O'Dell, Nicola Omodei, Chiara Oppedisano, Alessandro Papitto, George G. Pavlov, Abel L. Peirson, Matteo Perri, Melissa Pesce-Rollins, Pierre-Olivier Petrucci, Maura Pilia, Andrea Possenti, Simonetta Puccetti, Brian D. Ramsey, John Rankin, Ajay Ratheesh, Oliver J. Roberts, Roger W. Romani, Carmelo Sgrò, Patrick Slane, Paolo Soffitta, Gloria Spandre, Douglas A. Swartz, Toru Tamagawa, Fabrizio Tavecchio, Roberto Taverna, Yuzuru Tawara, Allyn F. Tennant, Nicholas E. Thomas, Francesco Tombesi, Alessio Trois, Sergey S. Tsygankov, Roberto Turolla, Jacco Vink, Martin C. Weisskopf, Kinwah Wu, Fei Xie, Silvia Zane
X-Ray Polarimetry Of The Dipping Accreting Neutron Star 4u 1624–49, M Lynne Saade, Philip Kaaret, Andrea Gnarini, Juri Poutanen, Francesco Ursini, Stefano Bianchi, Anna Bobrikova, Fabio La Monaca, Alessandro Di Marco, Fiamma Capitanio, Alexandra Veledina, Iván Agudo, Lucio A. Antonelli, Matteo Bachetti, Luca Baldini, Wayne H. Baumgartner, Ronaldo Bellazzini, Stephen D. Bongiorno, Raffaella Bonino, Alessandro Brez, Niccolò Bucciantini, Simone Castellano, Elisabetta Cavazzuti, Chien-Ting Chen, Stefano Ciprini, Enrico Costa, Alessandra De Rosa, Ettore Del Monte, Laura Di Gesu, Niccolò Di Lalla, Immacolata Donnarumma, Victor Doroshenko, Michal Dovčiak, Steven R. Ehlert, Teruaki Enoto, Yuri Evangelista, Sergio Fabiani, Riccardo Ferrazzoli, Javier A. García, Shuichi Gunji, Kiyoshi Hayashida, Jeremy Heyl, Wataru Iwakiri, Svetlana G. Jorstad, Vladimir Karas, Fabian Kislat, Takao Kitaguchi, Jeffery J. Kolodziejczak, Henric Krawczynski, Luca Latronico, Ioannis Liodakis, Simone Maldera, Alberto Manfreda, Frédéric Marin, Andrea Marinucci, Alan P. Marscher, Herman L. Marshall, Francesco Massaro, Giorgio Matt, Ikuyuki Mitsuishi, Tsunefumi Mizuno, Fabio Muleri, Michela Negro, Chi-Yung Ng, Stephen L. O'Dell, Nicola Omodei, Chiara Oppedisano, Alessandro Papitto, George G. Pavlov, Abel L. Peirson, Matteo Perri, Melissa Pesce-Rollins, Pierre-Olivier Petrucci, Maura Pilia, Andrea Possenti, Simonetta Puccetti, Brian D. Ramsey, John Rankin, Ajay Ratheesh, Oliver J. Roberts, Roger W. Romani, Carmelo Sgrò, Patrick Slane, Paolo Soffitta, Gloria Spandre, Douglas A. Swartz, Toru Tamagawa, Fabrizio Tavecchio, Roberto Taverna, Yuzuru Tawara, Allyn F. Tennant, Nicholas E. Thomas, Francesco Tombesi, Alessio Trois, Sergey S. Tsygankov, Roberto Turolla, Jacco Vink, Martin C. Weisskopf, Kinwah Wu, Fei Xie, Silvia Zane
Faculty Publications
We present the first X-ray polarimetric study of the dipping accreting neutron star 4U 1624−49 with the Imaging X-ray Polarimetry Explorer. We report a detection of polarization in the nondip time intervals with a confidence level of 99.99%. We find an average polarization degree (PD) of 3.1% ± 0.7% and a polarization angle of 81° ± 6° east of north in the 2–8 keV band. We report an upper limit on the PD of 22% during the X-ray dips with 95% confidence. The PD increases with energy, reaching from 3.0% ± 0.9% in the 4–6 keV band to 6% ± …
X-Ray Polarization Of The Black Hole X-Ray Binary 4u 1630–47 Challenges The Standard Thin Accretion Disk Scenario, Ajay Ratheesh, Michal Dovčiak, Henric Krawczynski, Jakub Podgorný, Lorenzo Marra, Alexandra Veledina, Valery F. Suleimanov, Nicole Rodriguez Cavero, James F. Steiner, Jiří Svoboda, Andrea Marinucci, Stefano Bianchi, Michela Negro, Giorgio Matt, Francesco Tombesi, Juri Poutanen, Adam Ingram, Roberto Taverna, Andrew West, Vladimir Karas, Francesco Ursini, Paolo Soffitta, Fiamma Capitanio, Domenico Viscolo, Alberto Manfreda, Fabio Muleri, Maxime Parra, Banafsheh Beheshtipour, Sohee Chun, Nicolò Cibrario, Niccolò Di Lalla, Sergio Fabiani, Kun Hu, Philip Kaaret, Vladislav Loktev, Romana Mikušincová, Tsunefumi Mizuno, Nicola Omodei, Pierre-Olivier Petrucci, Simonetta Puccetti, John Rankin, Silvia Zane, Sixuan Zhang, Iván Agudo, Lucio A. Antonelli, Matteo Bachetti, Luca Baldini, Wayne H. Baumgartner, Ronaldo Bellazzini, Stephen D. Bongiorno, Raffaella Bonino, Alessandro Brez, Niccolò Bucciantini, Simone Castellano, Elisabetta Cavazzuti, Chien-Ting Chen, Stefano Ciprini, Enrico Costa, Alessandra De Rosa, Ettore Del Monte, Laura Di Gesu, Alessandro Di Marco, Immacolata Donnarumma, Victor Doroshenko, Steven R. Ehlert, Teruaki Enoto, Yuri Evangelista, Riccardo Ferrazzoli, Javier A. Garcia, Shuichi Gunji, Kiyoshi Hayashida, Jeremy Heyl, Wataru Iwakiri, Svetlana G. Jorstad, Fabian Kislat, Takao Kitaguchi, Jeffery J. Kolodziejczak, Fabio La Monaca, Luca Latronico, Ioannis Liodakis, Simone Maldera, Frédéric Marin, Alan P. Marscher, Herman L. Marshall, Francesco Massaro, Ikuyuki Mitsuishi, Stephen C.-Y. Ng, Stephen L. O'Dell, Chiara Oppedisano, Alessandro Papitto, George G. Pavlov, Abel L. Peirson, Matteo Perri, Melissa Pesce-Rollins, Maura Pilia, Andrea Possenti, Brian D. Ramsey, Oliver J. Roberts, Roger W. Romani, Carmelo Sgrò, Patrick Slane, Gloria Spandre, Douglas A. Swartz, Toru Tamagawa, Fabrizio Tavecchio, Yuzuru Tawara, Allyn F. Tennant, Nicholas E. Thomas, Alessio Trois, Sergey S. Tsygankov, Roberto Turolla, Jacco Vink, Martin C. Weisskopf, Kinwah Wu, Fei Xie
X-Ray Polarization Of The Black Hole X-Ray Binary 4u 1630–47 Challenges The Standard Thin Accretion Disk Scenario, Ajay Ratheesh, Michal Dovčiak, Henric Krawczynski, Jakub Podgorný, Lorenzo Marra, Alexandra Veledina, Valery F. Suleimanov, Nicole Rodriguez Cavero, James F. Steiner, Jiří Svoboda, Andrea Marinucci, Stefano Bianchi, Michela Negro, Giorgio Matt, Francesco Tombesi, Juri Poutanen, Adam Ingram, Roberto Taverna, Andrew West, Vladimir Karas, Francesco Ursini, Paolo Soffitta, Fiamma Capitanio, Domenico Viscolo, Alberto Manfreda, Fabio Muleri, Maxime Parra, Banafsheh Beheshtipour, Sohee Chun, Nicolò Cibrario, Niccolò Di Lalla, Sergio Fabiani, Kun Hu, Philip Kaaret, Vladislav Loktev, Romana Mikušincová, Tsunefumi Mizuno, Nicola Omodei, Pierre-Olivier Petrucci, Simonetta Puccetti, John Rankin, Silvia Zane, Sixuan Zhang, Iván Agudo, Lucio A. Antonelli, Matteo Bachetti, Luca Baldini, Wayne H. Baumgartner, Ronaldo Bellazzini, Stephen D. Bongiorno, Raffaella Bonino, Alessandro Brez, Niccolò Bucciantini, Simone Castellano, Elisabetta Cavazzuti, Chien-Ting Chen, Stefano Ciprini, Enrico Costa, Alessandra De Rosa, Ettore Del Monte, Laura Di Gesu, Alessandro Di Marco, Immacolata Donnarumma, Victor Doroshenko, Steven R. Ehlert, Teruaki Enoto, Yuri Evangelista, Riccardo Ferrazzoli, Javier A. Garcia, Shuichi Gunji, Kiyoshi Hayashida, Jeremy Heyl, Wataru Iwakiri, Svetlana G. Jorstad, Fabian Kislat, Takao Kitaguchi, Jeffery J. Kolodziejczak, Fabio La Monaca, Luca Latronico, Ioannis Liodakis, Simone Maldera, Frédéric Marin, Alan P. Marscher, Herman L. Marshall, Francesco Massaro, Ikuyuki Mitsuishi, Stephen C.-Y. Ng, Stephen L. O'Dell, Chiara Oppedisano, Alessandro Papitto, George G. Pavlov, Abel L. Peirson, Matteo Perri, Melissa Pesce-Rollins, Maura Pilia, Andrea Possenti, Brian D. Ramsey, Oliver J. Roberts, Roger W. Romani, Carmelo Sgrò, Patrick Slane, Gloria Spandre, Douglas A. Swartz, Toru Tamagawa, Fabrizio Tavecchio, Yuzuru Tawara, Allyn F. Tennant, Nicholas E. Thomas, Alessio Trois, Sergey S. Tsygankov, Roberto Turolla, Jacco Vink, Martin C. Weisskopf, Kinwah Wu, Fei Xie
Faculty Publications
A large energy-dependent X-ray polarization degree is detected by the Imaging X-ray Polarimetry Explorer (IXPE) in the high-soft emission state of the black hole X-ray binary 4U 1630–47. The highly significant detection (at ≈50σ confidence level) of an unexpectedly high polarization, rising from ∼6% at 2 keV to ∼10% at 8 keV, cannot be easily reconciled with standard models of thin accretion disks. In this work, we compare the predictions of different theoretical models with the IXPE data and conclude that the observed polarization properties are compatible with a scenario in which matter accretes onto the black hole through a …
Acceleration And Release Of Solar Energetic Particles Associated With A Coronal Shock On 2021 September 28 Observed By Four Spacecraft, Bin Zhuang, Noé Lugaz, David Lario, Ryun-Young Kwon, Nicolina Chrysaphi, Jonathan Niehof, Tingyu Gou, Lulu Zhao
Acceleration And Release Of Solar Energetic Particles Associated With A Coronal Shock On 2021 September 28 Observed By Four Spacecraft, Bin Zhuang, Noé Lugaz, David Lario, Ryun-Young Kwon, Nicolina Chrysaphi, Jonathan Niehof, Tingyu Gou, Lulu Zhao
Faculty Publications
The main driver of the acceleration of solar energetic particles (SEPs) is believed to be shocks driven by coronal mass ejections. Extreme-ultraviolet (EUV) waves are thought to be the propagating footprint of the shock on the solar surface. One of the key questions in SEP research is the timing of the SEP release with respect to the time when the EUV wave magnetically connects with an observer. Taking advantage of close-to-the-Sun measurements by Parker Solar Probe (PSP) and Solar Orbiter (SolO), we investigate an SEP event that occurred on 2021 September 28 and was observed at different locations by SolO, …
4-H Volunteer Orientation Handbook, Joeseph D. Drake
4-H Volunteer Orientation Handbook, Joeseph D. Drake
UNH Cooperative Extension
New Hampshire 4-H Volunteer Orientation handbook.
Multispacecraft Observations Of A Widespread Solar Energetic Particle Event On 2022 February 15–16, L Y. Khoo, B Sánchez-Cano, C O. Lee, L Rodríguez-García, A Kouloumvakos, E Palmerio, F Carcaboso, D Lario, N Dresing, C M S Cohen, D J. Mccomas, B J. Lynch, F Fraschetti, I C. Jebaraj, J G. Mitchell, T Nieves-Chinchilla, V Krupar, D Pacheco, J Giacalone, H Auster, J Benkhoff, X Bonnin, E R. Christian, B Ehresmann, A Fedeli
Multispacecraft Observations Of A Widespread Solar Energetic Particle Event On 2022 February 15–16, L Y. Khoo, B Sánchez-Cano, C O. Lee, L Rodríguez-García, A Kouloumvakos, E Palmerio, F Carcaboso, D Lario, N Dresing, C M S Cohen, D J. Mccomas, B J. Lynch, F Fraschetti, I C. Jebaraj, J G. Mitchell, T Nieves-Chinchilla, V Krupar, D Pacheco, J Giacalone, H Auster, J Benkhoff, X Bonnin, E R. Christian, B Ehresmann, A Fedeli
Faculty Publications
On 2022 February 15–16, multiple spacecraft measured one of the most intense solar energetic particle (SEP) events observed so far in Solar Cycle 25. This study provides an overview of interesting observations made by multiple spacecraft during this event. Parker Solar Probe (PSP) and BepiColombo were close to each other at 0.34–0.37 au (a radial separation of ∼0.03 au) as they were impacted by the flank of the associated coronal mass ejection (CME). At about 100° in the retrograde direction and 1.5 au away from the Sun, the radiation detector on board the Curiosity surface rover observed the largest ground-level …
X-Ray Polarimetry Of The Dipping Accreting Neutron Star 4u 1624–49, M Lynne Saade, Philip Kaaret, Andrea Gnarini, Juri Poutanen, Francesco Ursini, Stefano Bianchi, Anna Bobrikova, Fabio La Monaca, Alessandro Di Marco, Fiamma Capitanio, Alexandra Veledina, Iván Agudo, Lucio A. Antonelli, Matteo Bachetti, Luca Baldini, Wayne H. Baumgartner, Ronaldo Bellazzini, Stephen D. Bongiorno, Raffaella Bonino, Alessandro Brez, Niccolò Bucciantini, Simone Castellano, Elisabetta Cavazzuti, Chien-Ting Chen, Stefano Ciprini
X-Ray Polarimetry Of The Dipping Accreting Neutron Star 4u 1624–49, M Lynne Saade, Philip Kaaret, Andrea Gnarini, Juri Poutanen, Francesco Ursini, Stefano Bianchi, Anna Bobrikova, Fabio La Monaca, Alessandro Di Marco, Fiamma Capitanio, Alexandra Veledina, Iván Agudo, Lucio A. Antonelli, Matteo Bachetti, Luca Baldini, Wayne H. Baumgartner, Ronaldo Bellazzini, Stephen D. Bongiorno, Raffaella Bonino, Alessandro Brez, Niccolò Bucciantini, Simone Castellano, Elisabetta Cavazzuti, Chien-Ting Chen, Stefano Ciprini
Faculty Publications
We present the first X-ray polarimetric study of the dipping accreting neutron star 4U 1624−49 with the Imaging X-ray Polarimetry Explorer. We report a detection of polarization in the nondip time intervals with a confidence level of 99.99%. We find an average polarization degree (PD) of 3.1% ± 0.7% and a polarization angle of 81° ± 6° east of north in the 2–8 keV band. We report an upper limit on the PD of 22% during the X-ray dips with 95% confidence. The PD increases with energy, reaching from 3.0% ± 0.9% in the 4–6 keV band to 6% ± …
X-Ray Polarization Of The Black Hole X-Ray Binary 4u 1630–47 Challenges The Standard Thin Accretion Disk Scenario, Ajay Ratheesh, Michal Dovčiak, Henric Krawczynski, Jakub Podgorný, Lorenzo Marra, Alexandra Veledina, Valery F. Suleimanov, Nicole Rodriguez Cavero, James F. Steiner, Jiří Svoboda, Andrea Marinucci, Stefano Bianchi, Michela Negro, Giorgio Matt, Francesco Tombesi, Juri Poutanen, Adam Ingram, Roberto Taverna, Andrew West, Vladimir Karas, Francesco Ursini, Paolo Soffitta, Fiamma Capitanio, Domenico Viscolo, Alberto Manfreda
X-Ray Polarization Of The Black Hole X-Ray Binary 4u 1630–47 Challenges The Standard Thin Accretion Disk Scenario, Ajay Ratheesh, Michal Dovčiak, Henric Krawczynski, Jakub Podgorný, Lorenzo Marra, Alexandra Veledina, Valery F. Suleimanov, Nicole Rodriguez Cavero, James F. Steiner, Jiří Svoboda, Andrea Marinucci, Stefano Bianchi, Michela Negro, Giorgio Matt, Francesco Tombesi, Juri Poutanen, Adam Ingram, Roberto Taverna, Andrew West, Vladimir Karas, Francesco Ursini, Paolo Soffitta, Fiamma Capitanio, Domenico Viscolo, Alberto Manfreda
Faculty Publications
A large energy-dependent X-ray polarization degree is detected by the Imaging X-ray Polarimetry Explorer (IXPE) in the high-soft emission state of the black hole X-ray binary 4U 1630–47. The highly significant detection (at ≈50σ confidence level) of an unexpectedly high polarization, rising from ∼6% at 2 keV to ∼10% at 8 keV, cannot be easily reconciled with standard models of thin accretion disks. In this work, we compare the predictions of different theoretical models with the IXPE data and conclude that the observed polarization properties are compatible with a scenario in which matter accretes onto the black hole through a …
Multispacecraft Observations Of A Widespread Solar Energetic Particle Event On 2022 February 15–16, L Y. Khoo, B Sánchez-Cano, C O. Lee, L Rodríguez-García, A Kouloumvakos, E Palmerio, F Carcaboso, D Lario, N Dresing, C M S Cohen, D J. Mccomas, B J. Lynch, F Fraschetti, I C. Jebaraj, J G. Mitchell, T Nieves-Chinchilla, V Krupar, D Pacheco, J Giacalone, H Auster, J Benkhoff, X Bonnin, E R. Christian, B Ehresmann, A Fedeli, D. Fischer, D. Heyner, M. Holmström, R. A. Leske, M. Maksimovic, J. Z. D. Mieth, P. Oleynik, M. Pinto, I. Richter, J. Rodríguez-Pacheco, Nathan A. Schwadron, D. Schmid, D. Telloni, A. Vecchio, M. E. Wiedenbeck
Multispacecraft Observations Of A Widespread Solar Energetic Particle Event On 2022 February 15–16, L Y. Khoo, B Sánchez-Cano, C O. Lee, L Rodríguez-García, A Kouloumvakos, E Palmerio, F Carcaboso, D Lario, N Dresing, C M S Cohen, D J. Mccomas, B J. Lynch, F Fraschetti, I C. Jebaraj, J G. Mitchell, T Nieves-Chinchilla, V Krupar, D Pacheco, J Giacalone, H Auster, J Benkhoff, X Bonnin, E R. Christian, B Ehresmann, A Fedeli, D. Fischer, D. Heyner, M. Holmström, R. A. Leske, M. Maksimovic, J. Z. D. Mieth, P. Oleynik, M. Pinto, I. Richter, J. Rodríguez-Pacheco, Nathan A. Schwadron, D. Schmid, D. Telloni, A. Vecchio, M. E. Wiedenbeck
Faculty Publications
On 2022 February 15–16, multiple spacecraft measured one of the most intense solar energetic particle (SEP) events observed so far in Solar Cycle 25. This study provides an overview of interesting observations made by multiple spacecraft during this event. Parker Solar Probe (PSP) and BepiColombo were close to each other at 0.34–0.37 au (a radial separation of ∼0.03 au) as they were impacted by the flank of the associated coronal mass ejection (CME). At about 100° in the retrograde direction and 1.5 au away from the Sun, the radiation detector on board the Curiosity surface rover observed the largest ground-level …