Zobrazeno 1 - 10
of 198
pro vyhledávání: '"Parke Loyd"'
Autor:
R. O. Parke Loyd, P. C. Schneider, James A. G. Jackman, Kevin France, Evgenya L. Shkolnik, Nicole Arulanantham, P. Wilson Cauley, Joe Llama, Adam C. Schneider
Publikováno v:
The Astronomical Journal, Vol 167, Iss 4, p 185 (2024)
Externí odkaz:
https://doaj.org/article/31bb0bd4f5174c9d9e41441bb66324a6
Publikováno v:
The Astrophysical Journal, Vol 957, Iss 2, p 90 (2023)
The Ly α emission line is the brightest UV emission line in M and K dwarf spectra and serves as an important tool for studies of stellar chromospheres, the interstellar medium, and exoplanet atmospheres. However, Ly α observations have proven diffi
Externí odkaz:
https://doaj.org/article/2933738c94ef497e8e9b9fdbf7ab6fc9
Autor:
R. O. Parke Loyd, P. C. Schneider, James A. G. Jackman, Kevin France, Evgenya L. Shkolnik, Nicole Arulanantham, P. Wilson Cauley, Joe Llama, Adam C. Schneider
Publikováno v:
The Astronomical Journal, Vol 165, Iss 4, p 146 (2023)
Variability in the far-ultraviolet (FUV) emission produced by stellar activity affects photochemistry and heating in orbiting planetary atmospheres. We present a comprehensive analysis of the FUV variability of GJ 436, a field-age M2.5V star ( P _rot
Externí odkaz:
https://doaj.org/article/606a6a20b5e8488982abafe793e3a6e6
Autor:
Alexander Brown, P. Christian Schneider, Kevin France, Cynthia S. Froning, Allison A. Youngblood, David J. Wilson, R. O. Parke Loyd, J. Sebastian Pineda, Girish M. Duvvuri, Adam F. Kowalski, Zachory K. Berta-Thompson
Publikováno v:
The Astronomical Journal, Vol 165, Iss 5, p 195 (2023)
The high-energy X-ray and ultraviolet (UV) radiation fields of exoplanet host stars play a crucial role in controlling the atmospheric conditions and the potential habitability of exoplanets. Major surveys of the X-ray/UV emissions from late-type (K
Externí odkaz:
https://doaj.org/article/9a337df8c10b4425afae47ed45e5c184
Autor:
Tahina Ramiaramanantsoa, Judd D Bowman, Evgenya L Shkolnik, R O Parke Loyd, David R Ardila, April Jewell, Travis Barman, Christophe Basset, Matthew Beasley, Samuel Cheng, Johnathan Gamaunt, Varoujan Gorjian, John Hennessy, Daniel Jacobs, Logan Jensen, Mary Knapp, Joe Llama, Victoria Meadows, Shouleh Nikzad, Sarah Peacock, Paul Scowen, Mark R Swain
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 509:5702-5712
The Star-Planet Activity Research CubeSat (SPARCS) is a 6U CubeSat under development to monitor the flaring and chromospheric activity of M dwarfs at near-ultraviolet (NUV) and far-ultraviolet (FUV) wavelengths. The spacecraft hosts two UV-optimized
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::688232f470481c46eac31d470bb99771
https://doi.org/10.1093/mnras/stab3396
https://doi.org/10.1093/mnras/stab3396
Autor:
James A G Jackman, Evgenya L Shkolnik, Chase Million, Scott Fleming, Tyler Richey-Yowell, R O Parke Loyd
The ultraviolet (UV) emission of stellar flares may have a pivotal role in the habitability of rocky exoplanets around low-mass stars. Previous studies have used white-light observations to calibrate empirical models which describe the optical and UV
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e35c15f4d44de29479e18577fc142926
http://arxiv.org/abs/2210.15688
http://arxiv.org/abs/2210.15688
Autor:
David Ardila, Evgenya Shkolnik, John Ziemer, Mark Swain, James Owen, Michael Line, Parke Loyd, Glenn R. Sellar, Travis Barman, Courtney Dressing, William Frazier, April D. Jewell, Robert J. Kinsey, Carl C. Liebe, Joshua Lothringer, Luz Maria Martinez-Sierra, James McGuire, Victoria Meadows, Ruth Murray-Clay, Shouleh Nikzad, Sarah Peacock, Hilke Schlichting, David Sing, Kevin Stevenson, Yen-Hung Wu
Publikováno v:
Conference on Space Telescopes and Instrumentation-Ultraviolet to Gamma Ray Part of SPIE Astronomical Telescopes and Instrumentation Conference
UV-SCOPE is a mission concept to determine the causes of atmospheric mass loss in exoplanets, investigate the mechanisms driving aerosol formation in hot Jupiters, and study the influence of the stellar environment on atmospheric evolution and habita
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a32c49944f2029c7663d20b71216986c
https://doi.org/10.1117/12.2629000
https://doi.org/10.1117/12.2629000
Autor:
R. O. Parke Loyd, James Paul Mason, Meng Jin, Evgenya L. Shkolnik, Kevin France, Allison Youngblood, Jackie Villadsen, Christian Schneider, Adam C. Schneider, Joe Llama, Tahina Ramiaramanantsoa, Tyler Richey-Yowell
Coronal mass ejections (CMEs) are a prominent contributor to solar system space weather and might have impacted the Sun's early angular momentum evolution. A signal diagnostic of CMEs on the Sun is coronal dimming: a drop in coronal emission, tied to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::651171bb07d714ecf47d986fe50a6315
http://arxiv.org/abs/2207.05115
http://arxiv.org/abs/2207.05115
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 502:2033-2042
We present the results of a search for stellar flares from stars neighbouring the target sources in the Kepler short cadence data. These flares have been discarded as contaminants in previous surveys and therefore provide an unexplored resource of fl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42625ae3032e667280f24eb94bc13432
https://doi.org/10.1093/mnras/stab166
https://doi.org/10.1093/mnras/stab166
Autor:
Ward S. Howard, Meredith A. MacGregor, Rachel Osten, Jan Forbrich, Steven R. Cranmer, Isaiah Tristan, Alycia J. Weinberger, Allison Youngblood, Thomas Barclay, R. O. Parke Loyd, Evgenya L. Shkolnik, Andrew Zic, David J. Wilner
We present millimeter, optical, and soft X-ray observations of a stellar flare with an energy squarely in the regime of typical X1 solar flares. The flare was observed from Proxima Cen on 2019 May 6 as part of a larger multi-wavelength flare monitori
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0fc4ca3156312150530d634598f21b0