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Physical Sciences and Mathematics Commons

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Astrophysics and Astronomy

Tennessee State University

2020

Transit photometry

Articles 1 - 3 of 3

Full-Text Articles in Physical Sciences and Mathematics

Physical Parameters Of The Multiplanet Systems Hd 106315 And Gj 9827*†, Molly R. Kosiarek, David A. Berardo, Ian J. M. Crossfield, Cesar Laguna, Caroline Piaulet, Joseph M. Akana Murphy, Steve B. Howell, Gregory W. Henry, Howard Isaacson, Benjamin Fulton, Lauren M. Weiss, Erik A. Petigura, Aida Behmard, Lea A. Hirsch, Johanna Teske, Jennifer A. Burt, Sean M. Mills, Ashley Chontos, Teo Močnik, Andrew W. Howard, Michael Werner, John H. Livingston, Jessica Krick, Charles Beichman, Varoujan Gorjian, Laura Kreidberg, Caroline Morley, Jessie L. Christiansen, Farisa Y. Morales, Nicholas J. Scott, Jeffrey D. Crane, Sharon Xuesong Wang, Stephen A. Shectman, Lee J. Rosenthal, Samuel K. Grunblatt, Ryan A. Rubenzahl, Paul A. Dalba, Steven Giacalone, Chiara Dane Villanueva, Qingtian Liu, Fei Dai, Michelle L. Hill, Malena Rice, Stephen R. Kane, Andrew W. Mayo Dec 2020

Physical Parameters Of The Multiplanet Systems Hd 106315 And Gj 9827*†, Molly R. Kosiarek, David A. Berardo, Ian J. M. Crossfield, Cesar Laguna, Caroline Piaulet, Joseph M. Akana Murphy, Steve B. Howell, Gregory W. Henry, Howard Isaacson, Benjamin Fulton, Lauren M. Weiss, Erik A. Petigura, Aida Behmard, Lea A. Hirsch, Johanna Teske, Jennifer A. Burt, Sean M. Mills, Ashley Chontos, Teo Močnik, Andrew W. Howard, Michael Werner, John H. Livingston, Jessica Krick, Charles Beichman, Varoujan Gorjian, Laura Kreidberg, Caroline Morley, Jessie L. Christiansen, Farisa Y. Morales, Nicholas J. Scott, Jeffrey D. Crane, Sharon Xuesong Wang, Stephen A. Shectman, Lee J. Rosenthal, Samuel K. Grunblatt, Ryan A. Rubenzahl, Paul A. Dalba, Steven Giacalone, Chiara Dane Villanueva, Qingtian Liu, Fei Dai, Michelle L. Hill, Malena Rice, Stephen R. Kane, Andrew W. Mayo

Information Systems and Engineering Management Research Publications

HD 106315 and GJ 9827 are two bright, nearby stars that host multiple super-Earths and sub-Neptunes discovered by K2 that are well suited for atmospheric characterization. We refined the planets' ephemerides through Spitzer transits, enabling accurate transit prediction required for future atmospheric characterization through transmission spectroscopy. Through a multiyear high-cadence observing campaign with Keck/High Resolution Echelle Spectrometer and Magellan/Planet Finder Spectrograph, we improved the planets' mass measurements in anticipation of Hubble Space Telescope transmission spectroscopy. For GJ 9827, we modeled activity-induced radial velocity signals with a Gaussian process informed by the Calcium II H&K lines in order to more accurately …


Updated Parameters And A New Transmission Spectrum Of Hd 97658b, Xueying Guo, Ian J. M. Crossfield, Diana Dragomir, Molly Kosiarek, Joshua Lothringer, Thomas Mikal-Evans, Lee J. Rosenthal, Björn Benneke, Heather Knutson, Paul A. Dalba, Eliza M. R. Kempton, Gregory W. Henry, Peter R. Mccullough, Travis Barman, Sarah C. Blunt, Ashley Chontos, Jonathan J. Fortney, Benjamin Fulton, Lea A. Hirsch, Andrew W. Howard, Howard Isaacson, Jaymie Matthews, Teo Mocnik, Caroline Morley, Erik A. Petigura, Lauren M. Weiss Apr 2020

Updated Parameters And A New Transmission Spectrum Of Hd 97658b, Xueying Guo, Ian J. M. Crossfield, Diana Dragomir, Molly Kosiarek, Joshua Lothringer, Thomas Mikal-Evans, Lee J. Rosenthal, Björn Benneke, Heather Knutson, Paul A. Dalba, Eliza M. R. Kempton, Gregory W. Henry, Peter R. Mccullough, Travis Barman, Sarah C. Blunt, Ashley Chontos, Jonathan J. Fortney, Benjamin Fulton, Lea A. Hirsch, Andrew W. Howard, Howard Isaacson, Jaymie Matthews, Teo Mocnik, Caroline Morley, Erik A. Petigura, Lauren M. Weiss

Information Systems and Engineering Management Research Publications

Recent years have seen increasing interest in the characterization of sub-Neptune-sized planets because of their prevalence in the Galaxy, contrasted with their absence in our solar system. HD 97658 is one of the brightest stars hosting a planet of this kind, and we present the transmission spectrum of this planet by combining four Hubble Space Telescope transits, 12 Spitzer/IRAC transits, and eight MOST transits of this system. Our transmission spectrum has a higher signal-to-noise ratio than those from previous works, and the result suggests that the slight increase in transit depth from wavelength 1.1–1.7 μm reported in previous works on …


Orbital Refinement And Stellar Properties For The Hd 9446, Hd 43691, And Hd 179079 Planetary Systems, Michelle L. Hill, Teo Močnik, Stephen R. Kane, Gregory W. Henry, Joshua Pepper, Natalie R. Hinkel, Paul A. Dalba, Benjamin Fulton, Keivan Stassun, Lee J. Rosenthal, Andrew W. Howard, Steve B. Howell, Mark E. Everett, Tabetha S. Boyajian, Debra A. Fischer, Joseph E. Rodriguez, Thomas G. Beatty, David J. James Apr 2020

Orbital Refinement And Stellar Properties For The Hd 9446, Hd 43691, And Hd 179079 Planetary Systems, Michelle L. Hill, Teo Močnik, Stephen R. Kane, Gregory W. Henry, Joshua Pepper, Natalie R. Hinkel, Paul A. Dalba, Benjamin Fulton, Keivan Stassun, Lee J. Rosenthal, Andrew W. Howard, Steve B. Howell, Mark E. Everett, Tabetha S. Boyajian, Debra A. Fischer, Joseph E. Rodriguez, Thomas G. Beatty, David J. James

Information Systems and Engineering Management Research Publications

The Transit Ephemeris Refinement and Monitoring Survey is a project that aims to detect transits of intermediate-long period planets by refining orbital parameters of the known radial velocity planets using additional data from ground-based telescopes, calculating a revised transit ephemeris for the planet, then monitoring the planet host star during the predicted transit window. Here we present the results from three systems that had high probabilities of transiting planets: HD 9446 b and c, HD 43691 b, and HD 179079 b. We provide new radial velocity (RV) measurements that are then used to improve the orbital solution for the known …