Results 31 to 40 of about 186,798 (170)

Chemical and Dynamical Processes in the Atmospheres of I. Ancient and Present-Day Earth, II. Jupiter and Galileo Satellite, III. Extrasolar “Hot Jupiters” [PDF]

, 2006
When exposed to stellar UV radiation, chemical processes will be governed not only by temperature/pressure but also the spectrum of the incoming dissociative photon flux; the system will approach kinetic, or photochemical, equilibrium, instead of ...
Liang, Mao-Chang
core   +1 more source

Three Long-period Transiting Giant Planets from TESS

The Astronomical Journal, 2023
We report the discovery and orbital characterization of three new transiting warm giant planets. These systems were initially identified as presenting single-transit events in the light curves generated from the full-frame images of the Transiting ...
Rafael Brahm, Solène Ulmer-Moll, Melissa J. Hobson, Andrés Jordán, Thomas Henning, Trifon Trifonov, Matías I. Jones, Martin Schlecker, Nestor Espinoza, Felipe I. Rojas, Pascal Torres, Paula Sarkis, Marcelo Tala, Jan Eberhardt, Diana Kossakowski, Diego J. Muñoz, Joel D. Hartman, Gavin Boyle, Vincent Suc, François Bouchy, Adrien Deline, Guillaume Chaverot, Nolan Grieves, Monika Lendl, Olga Suarez, Tristan Guillot, Amaury H. M. J. Triaud, Nicolas Crouzet, Georgina Dransfield, Ryan Cloutier, Khalid Barkaoui, Rick P. Schwarz, Chris Stockdale, Mallory Harris, Ismael Mireles, Phil Evans, Andrew W. Mann, Carl Ziegler, Diana Dragomir, Steven Villanueva, Christoph Mordasini, George Ricker, Roland Vanderspek, David W. Latham, Sara Seager, Joshua N. Winn, Jon M. Jenkins, Michael Vezie, Allison Youngblood, Tansu Daylan, Karen A. Collins, Douglas A. Caldwell, David R. Ciardi, Enric Palle, Felipe Murgas   +54 more
doaj   +1 more source

Extrasolar planet search and characterisation [PDF]

, 2007
Over two hundred extrasolar planets have been discovered to date with various methods. This thesis reports on searching for extrasolar planets and characterising them by simulating their atmospheres.
Hood, Ben Andrew Ashcom
core   +2 more sources

Probing Reflection from Aerosols with the Near-infrared Dayside Spectrum of WASP-80b

The Astrophysical Journal Letters, 2023
The presence of aerosols is intimately linked to the global energy budget and the composition of a planet’s atmosphere. Their ability to reflect incoming light prevents energy from being deposited into the atmosphere, and they shape the spectra of ...
Bob Jacobs, Jean-Michel Désert, Peter Gao, Caroline V. Morley, Jacob Arcangeli, Saugata Barat, Mark S. Marley, Julianne I. Moses, Jonathan J. Fortney, Jacob L. Bean, Kevin B. Stevenson, Vatsal Panwar   +11 more
doaj   +1 more source

Formation of Asteroid (16) Psyche by a Giant Impact

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract Asteroid (16) Psyche is the largest likely metal‐rich asteroid in the Solar System and the target of the NASA Psyche mission. The mission aims to determine whether the asteroid is the core of a differentiated planetesimal that lost its mantle via a giant impact.
Saverio Cambioni, Benjamin P. Weiss, Namya Baijal, Robert Melikyan, Erik Asphaug, John B. Biersteker, Richard P. Binzel, William F. Bottke, Samuel W. Courville, Linda T. Elkins‐Tanton, David J. Lawrence, José M. G. Merayo, Carol A. Raymond, Mark A. Wieczorek, Maria T. Zuber   +14 more
wiley   +1 more source

Discovery and Characterization of an Eccentric, Warm Saturn Transiting the Solar Analog TOI-4994

The Astronomical Journal
We present the detection and characterization of TOI-4994b (TIC 277128619b), a warm Saturn-sized planet discovered by the NASA Transiting Exoplanet Survey Satellite.
Romy Rodríguez Martínez, Jason D. Eastman, Karen A. Collins, Joseph E. Rodriguez, David Charbonneau, Samuel N. Quinn, David W. Latham, Carl Ziegler, Rafael Brahm, Tyler R. Fairnington, SolÉne Ulmer-Moll, Keivan G. Stassun, Olga Suarez, Tristan Guillot, Melissa J. Hobson, Joshua N. Winn, Shubham Kanodia, Martin Schlecker, R. P. Butler, Jeffrey D. Crane, Steve Shectman, Johanna K. Teske, David Osip, Yuri Beletsky, Matthew P. Battley, Angelica Psaridi, Pedro Figueira, Monika Lendl, François Bouchy, Stéphane Udry, Michelle Kunimoto, Djamel Mékarnia, Lyu Abe, Trifon Trifonov, Marcelo Tala Pinto, Jan Eberhardt, Nestor Espinoza, Thomas Henning, Andrés Jordán, Felipe I. Rojas, Khalid Barkaoui, Howard M. Relles, Gregor Srdoc, Kevin I. Collins, Sara Seager, Avi Shporer, Michael Vezie, Christina Hedges, Ismael Mireles   +48 more
doaj   +1 more source

JWST Imaging of the Closest Globular Clusters—VI. The Lowest‐Mass Objects in M 4 and the Galactic Bulge

Astronomische Nachrichten, Volume 346, Issue 9, November 2025.
ABSTRACT We present James Webb Space Telescope observations of M 4—the closest globular cluster—that probe the lower Main Sequence down to the hydrogen‐burning limit. The unveiled stellar sequence reaches much fainter luminosities than previously possible, revealing a few extremely red objects that are consistent with brown dwarfs as cool as Teff∼1000K$
L. R. Bedin, R. Gerasimov, A. Calamida, M. Libralato, M. Scalco, D. Nardiello, M. Griggio, D. Apai, J. Anderson, A. Bellini, A. Burgasser   +10 more
wiley   +1 more source

Mid-infrared Imaging of SR 12 c with JWST/MIRI: Grain Growth in an Evolved Circumplanetary Disk

The Astrophysical Journal
The physical properties of circumplanetary disks offer insights into the formation of giant planets and their satellites. The circumbinary planetary-mass companion SR 12 c (1200 au from SR 12 AB) hosts an isolated dust disk directly detected with ALMA ...
Ya-Lin Wu, Claire O. Finley, Brendan P. Bowler, Ning Chen, Yuhiko Aoyama, Gregory J. Herczeg, Catherine C. Espaillat, William Best, Ian Czekala, Katherine B. Follette, Adam L. Kraus, Raquel A. Martinez, Connor E. Robinson, Quang H. Tran, Kimberly Ward-Duong, Yifan Zhou   +15 more
doaj   +1 more source

TOI-5344 b: A Saturn-like Planet Orbiting a Super-solar Metallicity M0 Dwarf

The Astronomical Journal, 2023
We confirm the planetary nature of TOI-5344 b as a transiting giant exoplanet around an M0-dwarf star. TOI-5344 b was discovered with the Transiting Exoplanet Survey Satellite photometry and confirmed with ground-based photometry (the Red Buttes ...
Te Han, Paul Robertson, Shubham Kanodia, Caleb Cañas, Andrea S. J. Lin, Gumundur Stefánsson, Jessica E. Libby-Roberts, Alexander Larsen, Henry A. Kobulnicky, Suvrath Mahadevan, Chad F. Bender, William D. Cochran, Michael Endl, Mark E. Everett, Arvind F. Gupta, Samuel Halverson, Fred Hearty, Andrew Monson, Joe P. Ninan, Arpita Roy, Christian Schwab, Ryan C. Terrien   +21 more
doaj   +1 more source

Hydroxylation and Hydrogen Diffusion in Lunar Samples: Spectral Measurements During Proton Irradiation

Journal of Geophysical Research: Planets, Volume 130, Issue 3, March 2025.
Abstract Widespread OH/H2 ${\mathrm{H}}_{2}$O has been detected across the lunar surface, but its origin remains a matter of active investigation. We present laboratory measurements of Apollo‐17 samples LS 78421 and LS 73131 that demonstrate, in situ, the formation of OH/H2 ${\mathrm{H}}_{2}$O during irradiation by energetic hydrogen ions similar to ...
Li Hsia Yeo, Anastasis Georgiou, Liam Morrissey, William Farrell, Jason McLain   +4 more
wiley   +1 more source