Results 131 to 140 of about 40,892 (232)

Revised Masses for Low-density Planets Orbiting the Disordered M-dwarf System TOI-1266

The Astronomical Journal
We present an analysis of 126 new radial velocity measurements from the MAROON-X spectrograph to investigate the TOI-1266 system, which hosts two known transiting sub-Neptunes at 10.8 and 18.8 days.
Dakotah Tyler, Erik A. Petigura, James Rogers, Jack Lubin, Andreas Seifhart, Jacob L. Bean, Madison Brady, Rafael Luque   +7 more
doaj   +1 more source

The Implications of Thermal Hydrodynamic Atmospheric Escape on the TRAPPIST-1 Planets

The Planetary Science Journal
JWST observations of the seven-planet TRAPPIST-1 system will provide an excellent opportunity to test outcomes of stellar-driven evolution of terrestrial planetary atmospheres, including atmospheric escape, ocean loss, and abiotic oxygen production ...
Megan T. Gialluca, Rory Barnes, Victoria S. Meadows, Rodolfo Garcia, Jessica Birky, Eric Agol   +5 more
doaj   +1 more source

The Need for Laboratory Measurements and Ab Initio Studies to Aid Understanding of Exoplanetary Atmospheres

, 2019
We are now on a clear trajectory for improvements in exoplanet observations that will revolutionize our ability to characterize their atmospheric structure, composition, and circulation, from gas giants to rocky planets.
Airapetian, Vladimir, Alam, Munazza, Arney, Giada, Ascenzi, Daniela, Batalha, Natalie, Batalha, Natasha, Benilan, Yves, Blecic, Jasmina, Bott, Kimberly, Bouwman, Jordy, Close, Laird, Del Genio, Anthony D., Deming, Drake, Desert, Jean-Michel, Domagal-Goldman, Shawn, Dong, Chuanfei, Dressing, Courtney, Drouin, Brian, Fauchez, Thomas, Fleury, Benjamin, Fortney, Jonathan J., Freedman, Richard, Gao, Peter, Gavilan, Lisseth, Gharib-Nezhad, Ehsan, Gizis, John, Gordon, Iouli E., Goyal, Jayesh, Gronoff, Guillaume, Gudipati, Murthy, Haghighipour, Nader, Hargreaves, Robert J., Henderson, Bryana, Horst, Sarah, Hu, Renyu, Huang, Xinchuan, Iro, Nicolas, Irwin, Patrick, Jensen-Clem, Rebecca, Johnson, Alexandria V, Kane, Stephen, Kao, Der-you, Karman, Tijs, Kempton, Eliza, Kitiashvili, Irina, Kreidberg, Laura, Krissansen-Totton, Joshua, Lee, Timothy, Lee, Timothy J., Lewis, Nikole, Line, Mike, Linnartz, Harold, Lopez-Morales, Mercedes, Lothringer, Joshua, Louden, Tom, Lupu, Roxana, Lustig-Yaeger, Jacob, Lyons, Timothy, Madhusudhan, Nikku, Mancini, Luigi, Marley, Mark S., Milam, Stefanie, Molaverdikhani, Karan, Molliere, Paul, Moses, Julianne, Pierrehumbert, Raymond, Ramirez, Ramses M., Rieker, Gregory B., Robinson, Tyler, Robinson, Tyler D., Rogers, Leslie, Rugheimer, Sarah, Rustamkulov, Zafar, Salama, Farid, Savin, Daniel Wolf, Schwieterman, Edward, Shkolnik, Evgenya, Sousa-Silva, Clara, Stevenson, Kevin, Sung, Keeyoon, Swain, Mark, Taylor, Jake, Tennyson, Jonathan, Turbet, Martin, Venot, Olivia, Wordsworth, Robin, Yurchenko, Sergei N, Zellem, Robert   +87 more
core  

Assessing Core-powered Mass Loss in the Context of Early Boil-off: Minimal Long-lived Mass Loss for the Sub-Neptune Population

The Astrophysical Journal
We develop a Python-based state-of-the-art sub-Neptune evolution model that incorporates both the post-formation boil-off at young ages ≤1 Myr and long-lived core-powered mass loss (∼Gyr) from interior cooling.
Yao Tang, Jonathan J. Fortney, Ruth Murray-Clay   +2 more
doaj   +1 more source

JWST's eyes on an alien world. [PDF]

Innovation (Camb), 2023
Zhang X.
europepmc   +1 more source

Unraveling the complex inventory of biorelevant organics in the plumes of icy moons. [PDF]

Proc Natl Acad Sci U S A, 2023
Kaiser RI.
europepmc   +1 more source

Helium in Exoplanet Exospheres: Orbital and Stellar Influences

The Astronomical Journal
Searches for helium in the exospheres of exoplanets via the metastable near-infrared triplet have yielded 17 detections and 40 nondetections. We performed a comprehensive reanalysis of published studies to investigate the influence of stellar X-ray and ...
Vigneshwaran Krishnamurthy, Nicolas B. Cowan   +1 more
doaj   +1 more source

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

The Receding Cosmic Shoreline of Mid-to-late M Dwarfs: Measurements of Active Lifetimes Worsen Challenges for Atmosphere Retention by Rocky Exoplanets

The Astrophysical Journal Letters
Detecting and characterizing the atmospheres of terrestrial exoplanets is a key goal of exoplanetary astronomy, one that may now be within reach given the upcoming campaign to conduct a large-scale survey of rocky M-dwarf worlds with the James Webb Space
Emily K. Pass, David Charbonneau, Andrew Vanderburg   +2 more
doaj   +1 more source

Synergies Between Venus & Exoplanetary Observations: Venus and Its Extrasolar Siblings. [PDF]

Space Sci Rev, 2023
Way MJ, Ostberg C, Foley BJ, Gillmann C, Höning D, Lammer H, O'Rourke J, Persson M, Plesa AC, Salvador A, Scherf M, Weller M.   +11 more
europepmc   +1 more source