Results 71 to 80 of about 65,635 (192)

Magma Ocean Evolution at Arbitrary Redox State

Journal of Geophysical Research: Planets, Volume 129, Issue 12, December 2024.
Abstract Interactions between magma oceans and overlying atmospheres on young rocky planets leads to an evolving feedback of outgassing, greenhouse forcing, and mantle melt fraction. Previous studies have predominantly focused on the solidification of oxidized Earth‐similar planets, but the diversity in mean density and irradiation observed in the low ...
Harrison Nicholls, Tim Lichtenberg, Dan J. Bower, Raymond Pierrehumbert   +3 more
wiley   +1 more source

Direct Evidence of Photochemistry in an Exoplanet Atmosphere

, 2022
Photochemistry is a fundamental process of planetary atmospheres that is integral to habitability, atmospheric composition and stability, and aerosol formation. However, no unambiguous photochemical products have been detected in exoplanet atmospheres to
Aggarwal, Keshav, Cubillos, Patricio E., Line, Michael, Bean, Jacob L., Visscher, Channon, Alderson, Lili, Redfield, Seth, Gao, Peter, Baeyens, Robin, Crouzet, Nicolas, Behr, Patrick, Crossfield, Ian J. M., Schlawin, Everett, Lothringer, Joshua D., Grant, David, Fortney, Jonathan J., Hu, Renyu, Lopez-Morales, Mercedes, Yang, Jeehyun, France, Kevin, Daylan, Tansu, Bierson, Carver J., Wakeford, Hannah R, Tsai, Shang-Min, Powell, Diana, Carter, Aarynn L., Carone, Ludmila, Molaverdikhani, Karan, Yurchenko, Sergei N., Youngblood, Allison, Venot, Olivia, Kreidberg, Laura, Kirk, James, Brady, Ryan P., Moran, Sarah E., Berta-Thompson, Zachory K., Henning, Thomas, Taylor, Jake, Louca, Amy, Lendl, Monika, Decin, Leen, Moses, Julianne, Rustamkulov, Zafar, Wallack, Nicole L., Désert, Jean-Michel, Goyal, Jayesh M, Blecic, Jasmina, Mansfield, Megan, Miguel, Yamila, Welbanks, Luis, Batalha, Natalie M., Inglis, Julie, Mikal-Evans, Thomas, Wheatley, Peter J., Mukherjee, Sagnick, Batalha, Natasha E., Heng, Kevin, Leconte, Jérémy, Ohno, Kazumasa, Tremblin, Pascal, Rackham, Benjamin V., Krick, Jessica, Ahrer, Eva-Maria, Parmentier, Vivien, Jordan, Sean, Shorttle, Oliver, Barat, Saugata, Gibson, Neale P., Lee, Elspeth, Zhang, Xi, Harrington, Joseph, Mayne, N. J., Nasedkin, Evert, Alam, Munazza K., Palle, Enric, Borro, Miguel de Val, Casewell, S. L., Sing, David K., Stevenson, Kevin B., Feinstein, Adina D., Hébrard, Eric, Benneke, Björn, Kempton, Eliza M. -R., Lagage, Pierre-Olivier, Chubb, Katy L.   +84 more
core   +1 more source

Democratizing & Enhancing Exoplanet Research with the Unistellar Citizen Science Network & Astronomy Modeling Instruction [PDF]

This thesis explores the potential in democratizing and augmenting exoplanet research via citizen science by utilizing a global network of portable image-intensified computerized telescopes, and inquiry-based astronomy instruction. A central objective is
Peluso, Daniel O’Conner
core   +1 more source

The 0.5MJ transiting exoplanet WASP-13b [PDF]

, 2009
We report the discovery of WASP-13b, a low-mass $ M_{\rm p} = 0.46 ^_~M_J$ transiting exoplanet with an orbital period of 4.35298 $\pm$ 0.00004 days. The transit has a depth of 9 mmag, and although our follow-up photometry does not allow us to constrain ...
West, Richard G., Christian, Damian Joseph, Wheatley, P.J., Enoch, B., Maxted, Pierre, D. R. Anderson, Christian, D.J., Irwin, J., Horne, K., K. Horne, Wilson, D.M., Udry, S., Gibson, N.P., B. Loeillet, Wilson, D. M., Christian, D. J., C. Moutou, Moutou, C., Barros, S.C.C., F. P. Keenan, Haswell, C. A., Queloz, Didier, Simpson, E., Loeillet, B., Moutou, Claire, H. C. Stempels, Stempels, Eric, Cameron, E., Queloz, D., P. Maxted, Stempels, H.C., Cameron, A. Collier, Norton, Andrew J., N. Parley, D. M. Wilson, Keenan, F. P., Barros, S. C. C., Anderson, D.R., Norton, A.J., F. Bouchy, Horne, Keith Douglas, B. Smalley, A. Collier Cameron, Smalley, B., C. Hellier, G. Hébrard, Cameron, Andrew Collier, Collier Cameron, A., Haswell, C.A., D. Pollacco, Gibson, N. P., Joshi, Y. C., E. Simpson, Pollacco, Don, Street, R. A., I. Todd, West, R.G., Hellier, Coel, Street, R., Y. C. Joshi, Street, R.A., Skillen, I., West, R. G., M. Mayor, D. J. Christian, R. A. Street, Irwin, Jonathan, Ryans, R., C. A. Haswell, Mayor, M., Todd, I., L. Hebb, Hebb, L., Smalley, Barry, B. Enoch, Stempels, H. C., Norton, A. J., R. G. West, Lister, T. A., J. Irwin, Hébrard, G., T. A. Lister, Pollacco, D., Parley, N., R. Ryans, D. Queloz, N. P. Gibson, Hellier, C., Keenan, F.P., S. C. C. Barros, Lister, T.A., Todd, Ian, Bouchy, François, I. Skillen, Bouchy, F., P. J. Wheatley, S. Udry, Maxted, P., Joshi, Y.C., Wheatley, P. J., A. J. Norton, Anderson, D. R., Cameron, Andrew Collier; id_orcid   +102 more
core   +1 more source

Tides Tighten the Hycean Habitable Zone

The Astrophysical Journal Letters
Hycean planets—exoplanets with substantial water ice layers, deep surface oceans, and hydrogen-rich atmospheres—are thought to be favorable environments for life. Due to a relative paucity of atmospheric greenhouse gases, hycean planets have been thought
Joseph R. Livesey, Juliette Becker, Susanna L. Widicus Weaver   +2 more
doaj   +1 more source

The Venus Global Ionosphere‐Thermosphere Model (V‐GITM): A Coupled Thermosphere and Ionosphere Formulation

Journal of Geophysical Research: Planets, Volume 129, Issue 7, July 2024.
Abstract This paper introduces the new Venus global ionosphere‐thermosphere model (V‐GITM) which incorporates the terrestrial GITM framework with Venus‐specific parameters, ion‐neutral chemistry, and radiative processes in order to simulate some of the observable features regarding the temperatures, composition, and dynamical structure of the Venus ...
Brandon M. Ponder, Aaron J. Ridley, Stephen W. Bougher, David Pawlowski, Amanda Brecht   +4 more
wiley   +1 more source

Main-sequence exoplanet systems: tidal evolution [PDF]

The easiest exoplanets to detect are those that orbit very close to their hoststars. As a result, even though these planets are quite rare, they represent amajor fraction of the current exoplanet population.
Penev, Kaloyan
core  

Wide-Orbit Exoplanet Demographics [PDF]

, 2019
Astro2020 Science White paper 2019International audienceThe Kepler, K2 and TESS transit surveys are revolutionizing our understanding of planets orbiting close to their host stars and our understanding of exoplanet systems in general, but there remains a
Sahlmann, Johannes, Novati, Sebastiano Calchi, Bachelet, Etienne, Bennett, David P., Henderson, Calen B., Mulders, Gijs D., Ranc, Clement, Johnson, Samson A., Raymond, Sean N., Buzasi, Derek, Nielsen, Eric, Rogers, Leslie, Mullally, Susan, Christiansen, Jessie, Ngo, Henry, Plavchan, Peter, Endl, Michael, Bozza, Valerio, Gaudi, B. Scott, Poleski, Radek, Suzuki, Daisuke, Sumi, Takahiro, Bellini, Andrea, Shvartzvald, Yossi, Pascucci, Ilaria, Schlieder, Joshua, Boss, Alan, Calchi Novati, Sebastiano, Koshimoto, Naoki, Beaulieu, Jean-Phillipe, Domagal-Goldman, Shawn D., Meyer, Michael, Alibert, Yann, Bryson, Stephen, Bennett, David, Anderson, Jay, Akeson, Rachel, Fulton, Benjamin J., Nataf, David, Street, Rachel, Penny, Matthew, Sozzetti, Alessandro, Zimmerman, Neil, Murray-Clay, Ruth, Sahu, Kailash C., Bhattacharya, Aparna   +45 more
core   +1 more source

Geodynamics and Earth Tides Observations from Global to Micro Scale: Introduction

, 2018
The volume collects papers submitted to Pure and Applied Geophysics following a call on the topic “Geodynamics and Earth Tides”. Partly, the authors had participated in the 18th Geodynamics and Earth Tides Symposium held in Trieste, Italy, in June 2016 ...
C. Braitenberg, Hinderer J., Meurers, B., Jahr, T., J. Bogusz, Gross, R., Braitenberg C., Rossi, G., Crossley, D., L. Crescentini, Braitenberg, C., Hinderer, J., Gross R. S., G. Rossi, T. Jahr, R. Gross, B. Meurers, Bogusz J., Crescentini L., D. Crossley, H. Schuh, Meurers B., Schuh, H., Heki K., J. Hinderer, Crossley D., Bogusz, J., Rossi G., Heki, K., K. Heki, Schuch H., Jahr T., Crescentini, L.   +32 more
core   +1 more source

Tidal Evolution of Packed Moon Systems around an Earth-mass Planet

The Astrophysical Journal
While missions have long targeted terrestrial exoplanets within the habitable zone of their host stars, the number of exomoon candidates is expected to grow as next generation space-based observatories achieve the photometric sensitivity required to ...
Alan Briseño, Billy Quarles, Marialis Rosario-Franco   +2 more
doaj   +1 more source