Interpreting Ulysses Data Using Inverse Scattering Theory: Oblique Alfven Waves,
2015
Embry-Riddle Aeronautical University - Daytona Beach
Interpreting Ulysses Data Using Inverse Scattering Theory: Oblique Alfven Waves, Harry R. Wheeler, M A. Reynolds, Robert L. Hamilton
Faculty Publications - Department of Mathematics
Solitary wave structures observed by the Ulysses spacecraft in the solar wind were analyzed using both inverse scattering theory as well as direct numerical integration of the derivative nonlinear Schrodinger (DNLS) equation. Several of these structures were found to be consistent with soliton solutions of the DNLS equation. Such solitary structures have been commonly observed in the space plasma environment and may, in fact, be longlived solitons. While the generation of these solitons may be due to an instability mechanism, e.g., the mirror instability, they may be observable far from the source region due to their coherent nature.
The Sluggs Survey: Globular Cluster Stellar Population Trends From Weak Absorption Lines In Stacked Spectra,
2015
Swinburne University of Technology
The Sluggs Survey: Globular Cluster Stellar Population Trends From Weak Absorption Lines In Stacked Spectra, Christopher Usher, Duncan Forbes, Jean Brodie, Aaron Romanowsky, Jay Strader, Charlie Conroy, Caroline Foster, Nicola Pastorello, Vincenzo Pota, Jacob Arnold
Faculty Publications
As part of the SAGES Legacy Unifying Globulars and GalaxieS (SLUGGS) survey, we stack 1137 Keck DEIMOS (Deep Imaging Multi-Object Spectrograph) spectra of globular clusters from 10 galaxies to study their stellar populations in detail. The stacked spectra have median signal-to-noise ratios of ∼90 Å−1. Besides the calcium triplet, we study weaker sodium, magnesium, titanium and iron lines as well as the Hα and higher order Paschen hydrogen lines. In general, the stacked spectra are consistent with old ages and a Milky Way-like initial mass function. However, we see different metal line index strengths at fixed colour and magnitude, and …
Ngc 3628-Ucd1: A Possible Ω Cen Analog Embedded In A Stellar Stream,
2015
University of California Observatories
Ngc 3628-Ucd1: A Possible Ω Cen Analog Embedded In A Stellar Stream, Zachary Jennings, Aaron Romanowsky, Jean Brodie, Joachim Janz, Mark Norris, Duncan Forbes, David Martinez-Delgado, Martina Fagioli, Samantha Penny
Faculty Publications
No abstract provided.
Lambda Lambda Correlation Function In Au + Au Collisions At Sqrt(S_Nn) = 200 Gev,
2015
Valparaiso University
Lambda Lambda Correlation Function In Au + Au Collisions At Sqrt(S_Nn) = 200 Gev, Adam Gibson-Even, Shirvel Stanislaus, Donald Koetke, Star Collaboration
Physics and Astronomy Faculty Publications
No abstract provided.
Identification Of High Energy Cosmic Ray Electrons Using Advanced Techniques In Calet And Fermi Lat,
2015
University of Denver
Identification Of High Energy Cosmic Ray Electrons Using Advanced Techniques In Calet And Fermi Lat, Aaron James Worley
Electronic Theses and Dissertations
Measurements of the cosmic ray electron spectrum have received much attention over the last decade as anomalies in both electron and positron observations have been detected independently by several experiments. The profound possible implications in the fields of high energy astrophysics and particle physics have allowed for many interpretations on the origin of these inconsistencies in the spectra. This research focuses on two space-borne cosmic radiation experiments at different stages in their mission lifetimes: the Calorimetric Electron Telescope (CALET) and the Fermi Large Area Telescope (LAT). We explore the proton-electron discriminating capabilities of the CALET instrument through Monte Carlo simulations. …
Binary Star Systems With Asymmetrically Heated Disks: Thermal Phase Curves For The Disk In Epsilon Aurigae,
2015
University of Denver
Binary Star Systems With Asymmetrically Heated Disks: Thermal Phase Curves For The Disk In Epsilon Aurigae, Richard Luther Pearson Iii
Electronic Theses and Dissertations
Epsilon Aurigae is a long-period eclipsing binary that contains a warm F-star (~7750 K) and a circumstellar disk enshrouding a hidden companion, likely to be a hot B-star (>15,000 K). The eclipse itself lasts just over two years---thanks, in part, to the size of the disk---and occurs every 27.1-years. Its evolutionary status is still debated, along with the true nature of each stellar component, due to the high uncertainty in its parallax. The disk is similarly debated from the near absence of solid state infrared spectral features indicating its composition, particle size distribution, and density. An investigation of a …
Small Scatter And Nearly Isothermal Mass Profiles To Four Half-Light Radii From Two-Dimensional Stellar Dynamics Of Early-Type Galaxies,
2015
University of Oxford
Small Scatter And Nearly Isothermal Mass Profiles To Four Half-Light Radii From Two-Dimensional Stellar Dynamics Of Early-Type Galaxies, Michele Cappellari, Aaron Romanowsky, Jean Brodie, Duncan Forbes, Jay Strader, Caroline Foster, Sreeja Kartha, Nicola Pastorello, Vincenzo Pota, Lee Spitler, Christopher Usher, Jacob Arnold
Faculty Publications
No abstract provided.
Hiding In Plain Sight: Record-Breaking Compact Stellar Systems In The Sloan Digital Sky Survey,
2015
San Jose State University
Hiding In Plain Sight: Record-Breaking Compact Stellar Systems In The Sloan Digital Sky Survey, Michael Sandoval, Richard Vo, Aaron Romanowsky, Jay Strader, Jieun Choi, Zachary Jennings, Charlie Conroy, Jean Brodie, Caroline Foster, Alexa Villaume, Mark Norris, Joachim Janz, Duncan Forbes
Faculty Publications
No abstract provided.
Observations, Thermochemical Calculations, And Modeling Of Exoplanetary Atmospheres,
2015
University of Central Florida
Observations, Thermochemical Calculations, And Modeling Of Exoplanetary Atmospheres, Jasmina Blecic
Electronic Theses and Dissertations
This dissertation as a whole aims to provide the means to better understand hot-Jupiter planets through observing, performing thermochemical calculations, and modeling their atmospheres. We used Spitzer multi-wavelength secondary-eclipse observations to characterize planetary atmospheres. We chose targets with high signal-to-noise ratios, as their deep eclipses allow us to detect signatures of spectral features and assess planetary atmospheric structure and composition with greater certainty. Chapter 1 gives a short introduction. Chapter 2 presents the Spitzer secondary-eclipse analysis and atmospheric characterization of WASP-14b. The decrease in flux when a planet passes behind its host star reveals the planet dayside thermal emission, which, …
The Percy Roope Papers,
2015
Clark University
The Percy Roope Papers, Percy M. Roope
Finding Aids
Percy M. Roope was a Professor of Physics at Clark University from 1921 to 1967. He was a student of Robert H. Goddard and was present at Goddard's first successful launch in 1926. His papers consist of interviews with him concerning Dr. Goddard and correspondence with him.
Astronomy 101-201h The Solar System Fall 2015,
2015
Parkland College
Astronomy 101-201h The Solar System Fall 2015, Katrina Wefel
Astronomy Courses
No abstract provided.
Astronomy 101 The Solar System Fall 2015,
2015
Parkland College
Astronomy 101 The Solar System Fall 2015, Erik Johnson
Astronomy Courses
No abstract provided.
Astronomy 101-002 The Solar System Fall 2015,
2015
Parkland College
Astronomy 101-002 The Solar System Fall 2015, David Leake
Astronomy Courses
No abstract provided.
Astronomy 101-051w The Solar System Fall 2015,
2015
Parkland College
Astronomy 101-051w The Solar System Fall 2015, Pam Friese
Astronomy Courses
No abstract provided.
Astronomy 101-001 The Solar System Fall 2015,
2015
Parkland College
Astronomy 101-001 The Solar System Fall 2015, Katrina Wefel
Astronomy Courses
No abstract provided.
Astronomy 101-003 The Solar System Spring 2015,
2015
Parkland College
Astronomy 101-003 The Solar System Spring 2015, Erik Johnson
Astronomy Courses
No abstract provided.
Astronomy 101-002 The Solar System Spring 2015,
2015
Parkland College
Astronomy 101-002 The Solar System Spring 2015, David Leake
Astronomy Courses
No abstract provided.
Astronomy 101-001 The Solar System Spring 2015,
2015
Parkland College
Astronomy 101-001 The Solar System Spring 2015, Katrina Wefel
Astronomy Courses
No abstract provided.
Astronomy 102 Online Stars, Galaxies, The Universe Fall 2015,
2015
Parkland College
Astronomy 102 Online Stars, Galaxies, The Universe Fall 2015, Erik Johnson
Astronomy Courses
No abstract provided.
Astronomy 101-051w The Solar System Spring 2015,
2015
Parkland College
Astronomy 101-051w The Solar System Spring 2015, Pam Friese
Astronomy Courses
No abstract provided.
