Results 111 to 120 of about 5,501 (199)

HD 206893 B at High Spectral Resolution with the Keck Planet Imager and Characterizer

The Astronomical Journal
We present an atmospheric characterization and orbital analysis of HD 206893 B, an exceptionally red, L/T-transition substellar companion in a multiplanetary system, via Keck Planet Imager and Characterizer (KPIC) high-resolution ( R ∼ 35,000) K- band ...
Ben Sappey, Quinn Konopacky, Clarissa R. Do Ó, Travis Barman, Jean-Baptiste Ruffio, Jason Wang, Christopher A. Theissen, Luke Finnerty, Jerry Xuan, Katelyn Hortsman, Dimitri Mawet, Yapeng Zhang, Julie Inglis, Nicole L. Wallack, Aniket Sanghi, Ashley Baker, Randall Bartos, Geoffrey A. Blake, Charlotte Z. Bond, Benjamin Calvin, Sylvain Cetre, Jacques-Robert Delorme, Greg Doppmann, Daniel Echeverri, Michael P. Fitzgerald, Chih-Chun Hsu, Nemanja Jovanovic, Joshua Liberman, Ronald A. López, Emily C. Martin, Evan Morris, Jacklyn Pezzato-Rovner, Caprice L. Phillips, Garreth Ruane, Tobias Schofield, Andrew Skemer, Taylor Venenciano, J. Kent Wallace, Ji Wang, Peter Wizinowich, Yinzi Xin   +40 more
doaj   +1 more source

Atmospheric Collapse and Reinflation through Impacts for Terrestrial Planets around M Dwarfs

The Astrophysical Journal Letters
Detection of an atmosphere around a terrestrial exoplanet will be a major milestone in the field, but our observational capacities are biased towards tidally locked, close-in planets orbiting M dwarf stars. The atmospheres of these planets are vulnerable
Prune C. August, Robin Wordsworth, Mikayla Huffman, David Brain, Lars A. Buchhave   +4 more
doaj   +1 more source

Asymmetries in the Simulated Ozone Distribution on TRAPPIST-1e due to Orography

The Astrophysical Journal
TRAPPIST-1e is a tidally locked rocky exoplanet orbiting the habitable zone of an M dwarf star. Upcoming observations are expected to reveal new rocky exoplanets and their atmospheres around M dwarf stars.
Anand Bhongade, Daniel R Marsh, Felix Sainsbury-Martinez, Gregory Cooke   +3 more
doaj   +1 more source

Atmospheres on Nonsynchronized Eccentric-tilted Exoplanets. I. Dynamical Regimes

Atmospheres on Nonsynchronized Eccentric-tilted Exoplanets. I. Dynamical Regimes
identifier:oai:t2r2.star.titech.ac.jp ...
openaire  

Analogous response of temperate terrestrial exoplanets and Earth's climate dynamics to greenhouse gas supplement. [PDF]

Sci Rep, 2023
Hochman A, Komacek TD, De Luca P.
europepmc   +1 more source

Two-dimensional Eclipse Mapping of the Hot-Jupiter WASP-43b with JWST MIRI/LRS

The Astronomical Journal
We present eclipse maps of the two-dimensional thermal emission from the dayside of the hot-Jupiter WASP-43b, derived from an observation of a phase curve with the JWST MIRI/LRS instrument.
Mark Hammond, Taylor J. Bell, Ryan C. Challener, Neil T. Lewis, Megan Weiner Mansfield, Isaac Malsky, Emily Rauscher, Jacob L. Bean, Ludmila Carone, João M. Mendonça, Lucas Teinturier, Xianyu Tan, Nicolas Crouzet, Laura Kreidberg, Giuseppe Morello, Vivien Parmentier, Jasmina Blecic, Jean-Michel Désert, Christiane Helling, Pierre-Olivier Lagage, Karan Molaverdikhani, Matthew C. Nixon, Benjamin V. Rackham, Jingxuan Yang   +23 more
doaj   +1 more source

A High-resolution Near-Ultraviolet Transmission Spectrum of KELT-9b: Mg II and Fe II Escaping from the Hottest Known Giant Planet

The Astronomical Journal
We present high-resolution near-ultraviolet observations from the Hubble Space Telescope’s Space Telescope Imaging Spectrograph (STIS) data for the hottest known gas planet, KELT-9b.
Austin Baldwin, Joshua D. Lothringer, Leonardo A. dos Santos, David K. Sing, Zafar Rustamkulov, Nikolay K. Nikolov, Jeff Valenti, Hannah R. Wakeford   +7 more
doaj   +1 more source

The Response of Planetary Atmospheres to the Impact of Icy Comets. I. Tidally Locked Exo-Earths

The Astrophysical Journal
Impacts by rocky and icy bodies are thought to have played a key role in shaping the composition of solar system objects, including the Earth’s habitability. Hence, it is likely that they play a similar role in exoplanetary systems. We investigate how an
F. Sainsbury-Martinez, C. Walsh, G. Cooke   +2 more
doaj   +1 more source

A Time-resolved High-resolution Spectroscopic Analysis of Ionized Calcium and Dynamical Processes in the Ultra-hot Jupiter HAT-P-70 b

The Astrophysical Journal Letters
We present the first transmission spectroscopy study of an exoplanet atmosphere with the high-resolution mode of the new Gemini High-resolution Optical SpecTrograph (GHOST) instrument at the Gemini South Observatory. We observed one transit of HAT-P-70 b—
Adam B. Langeveld, Emily K. Deibert, Mitchell E. Young, Ernst de Mooij, Ray Jayawardhana, Chris Simpson, Jake D. Turner, Laura Flagg   +7 more
doaj   +1 more source

Atmospheric dynamics of terrestrial exoplanets over a wide range of orbital and atmospheric parameters

, 2014
Yohai Kaspi, Adam P. Showman
openalex   +1 more source