Results 61 to 70 of about 10,220 (206)

The Bochum Survey of the Southern Galactic Disk: III. Complete Data Release

Astronomische Nachrichten, Volume 347, Issue 3, March 2026.
ABSTRACT The Southern Galactic Disk Survey (GDS) monitored a mosaic of 268 fields along a 6°$$ {6}^{{}^{\circ}} $$‐wide stripe in the southern Galactic disk with simultaneous observations in r′$$ {r}^{\prime } $$ and i′$$ {i}^{\prime } $$ (7m≲r′,i′≲18m$$ {7}^{\mathrm{m}}\lesssim {r}^{\prime },{i}^{\prime}\lesssim {18}^{\mathrm{m}} $$) from September ...
Julia Blex, Moritz Hackstein, Christian Westhues, Michael Ramolla, Markus Demleitner, Dominik J. Bomans, Kerstin Weis, Christofer Fein, Rolf Chini   +8 more
wiley   +1 more source

Strong Fractionation of Deuterium and Helium in Sub-Neptune Atmospheres along the Radius Valley

The Astrophysical Journal
We simulate atmospheric fractionation in escaping planetary atmospheres using IsoFATE , a new open-source numerical model. We expand the parameter space studied previously to planets with tenuous atmospheres that exhibit the greatest helium and deuterium
Collin Cherubim, Robin Wordsworth, Renyu Hu, Evgenya Shkolnik   +3 more
doaj   +1 more source

Exoplanet phase curves: observations and theory

, 2018
Phase curves are the best technique to probe the three dimensional structure of exoplanets' atmospheres. In this chapter we first review current exoplanets phase curve observations and the particular challenges they face.
A Shporer, A Shporer, Adam P. Showman, AP Showman, AP Showman, AP Showman, BO Demory, BO Demory, C Visscher, Curtis S. Cooper, D Perez-Becker, D Piskorz, D. J. Armstrong, DDB Koll, F Selsis, HA Knutson, HA Knutson, Heather A. Knutson, I Hubeny, Ian Wong, Ian Wong, IJM Crossfield, IJM Crossfield, IJM Crossfield, J Harrington, J Langton, J Leconte, J Leconte, J Wit de, J Yang, J. C. Schwartz, JC Schwartz, JE Krick, JJ Fortney, K Batygin, K Haynes, K Heng, K Heng, KB Stevenson, KB Stevenson, KB Stevenson, KB Stevenson, Kevin B. Stevenson, L Kreidberg, Lisa J. Esteves, M Agúndez, M Oreshenko, MR Line, MW Webber, N Iro, NB Cowan, NB Cowan, NB Cowan, Nicolas B. Cowan, NK Lewis, NK Lewis, P Hut, PFL Maxted, R Hu, R Perna, R Perna, Robert T. Zellem, RT Pierrehumbert, S Fromang, S Millholland, SM Tsai, SR Kane, T Guillot, T Kataria, T Kataria, TD Komacek, Thaddeus D. Komacek, TM Evans, TM Rogers, TM Rogers, UA Dyudina, V Parmentier, Vivien Parmentier, Vivien Parmentier, Vivien Parmentier, X Zhang, YK Feng   +81 more
core   +1 more source

Effects of Hydrogen on Fe‐S Alloys and Their Implications for the Martian Core

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract Meteorites suggest the Martian core comprises iron (Fe) or iron‐nickel (Fe‐Ni) alloy with sulfur (S) identified as the primary light element. The InSight data revealed a larger, less dense Martian core than previously estimated, indicating additional light elements.
Xuehui Wei, Stella Chariton, Vitali B. Prakapenka, Yingwei Fei, Sang‐Heon Shim   +4 more
wiley   +1 more source

Far-ultraviolet Flares and Variability of the Young M Dwarf AU Mic: A Nondetection of Planet C in Transit at Lyα

The Astronomical Journal
Atmospheric escape’s potential to shape the exoplanet population motivates detailed observations of systems actively undergoing escape. AU Mic is a young and active M dwarf hosting two close-in transiting sub- to Neptune-sized planets. Atmospheric escape
Keighley E. Rockcliffe, Elisabeth R. Newton, Allison Youngblood, Girish M. Duvvuri, Emily A. Gilbert, Peter Plavchan, Peter Gao, Hans-R. Müller, Adina D. Feinstein, Thomas Barclay, Eric D. Lopez   +10 more
doaj   +1 more source

Spatially resolved spectroscopy across stellar surfaces. I. Using exoplanet transits to analyze 3-D stellar atmospheres

, 2017
CONTEXT: High-precision stellar analyses require hydrodynamic modeling to interpret chemical abundances or oscillation modes. Exoplanet atmosphere studies require stellar background spectra to be known along the transit path while detection of Earth ...
Dahlén, Erik, Dravins, Dainis, Ludwig, Hans-Günter, Pazira, Hiva   +3 more
core   +2 more sources

The Ability of Significant Tidal Stress to Initiate Plate Tectonics [PDF]

, 2019
Plate tectonics is a geophysical process currently unique to Earth, has an important role in regulating the Earth's climate, and may be better understood by identifying rocky planets outside our solar system with tectonic activity.
Triaud, Amaury H. M. J., Zanazzi, J. J.
core   +2 more sources

Magnetic Evolution of Super‐Earth Exoplanets With a Basal Magma Ocean

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract Habitability of super‐Earths likely requires self‐sustained magnetic fields to shield their atmospheres from stellar forcing. Extreme pressures and temperatures probably produce a long‐lived basal magma ocean (BMO), a potential source for these fields.
Victor Lherm, Miki Nakajima, Eric G. Blackman   +2 more
wiley   +1 more source

Helium Escape in Context: Comparative Signatures of Four Close-in Exoplanets

The Astrophysical Journal
Observations of escaping atmospheres on close-in exoplanets show a wide range in the strength and morphology of He I 10830 Å and H I absorption. Scaling relations attempt to link the He I signal to X-ray and UV irradiation, mass loss, and bulk planetary ...
Anna Ruth Taylor, Tommi T. Koskinen, Chenliang Huang, Anthony Arfaux, Panayotis Lavvas   +4 more
doaj   +1 more source

The Rossiter-McLaughlin effect in Exoplanet Research

, 2017
The Rossiter-McLaughlin effect occurs during a planet's transit. It provides the main means of measuring the sky-projected spin-orbit angle between a planet's orbital plane, and its host star's equatorial plane.
A Collier Cameron, A Collier Cameron, A Collier Cameron, A Giménez, A Giménez, A Hale, A Shporer, A Triaud, A. Brucalassi, A. H. M. J. Triaud, A. H. M. J. Triaud, A. Reiners, A. Santerne, A. Wyttenbach, AHMJ Triaud, AHMJ Triaud, AHMJ Triaud, AHMJ Triaud, AHMJ Triaud, AHMJ Triaud, AJ Barker, BC Addison, BS Gaudi, BS Gaudi, C Baruteau, C Brinch, C Hellier, C Huang, C Moutou, C Petrovich, C Petrovich, C Terquem, C Terquem, CA Watson, D Cébron, D Fabrycky, D Gandolfi, D Huber, D Lai, D Lai, D Malmberg, D Queloz, D Queloz, DB McLaughlin, DC Fabrycky, DJA Brown, DJA Brown, DJA Brown, DJA Brown, DNC Lin, DR Anderson, DR Anderson, DV Martin, E Gloria Di, EB Ford, EB Ford, EE Mamajek, EI Chiang, ELN Jensen, F Bouchy, F Dai, F Pont, F Rodler, F Schlesinger, F Yan, FA Rasio, G Boué, G Hébrard, G Hébrard, G Zhou, G Zhou, G Zhou, G. Hébrard, G. Hébrard, GM Kennedy, Gy. M. Szabó, H Rauer, H. M. Cegla, HM Cegla, IAG Snellen, IAG Snellen, IAG Snellen, IJM Crossfield, J Guillochon, J Sahlmann, J Sahlmann, J Schneider, J Southworth, J Wit de, JA Johnson, Jason W. Barnes, JB Bouquin Le, JC Becker, JF Donati, JF Donati, JN Winn, JN Winn, JN Winn, JN Winn, JN Winn, JN Winn, JP Zahn, JS Greaves, JW Barnes, K Batygin, K Masuda, KC Schlaufman, KI Öberg, Konstantin Batygin, KR Anderson, L Gizon, L Mancini, L. Y. Temple, LD Deming, LR Doyle, M Brogi, M Brogi, M Gillon, M Gillon, M Lendl, M López-Morales, M Mayor, M Nagasawa, M Neveu-VanMalle, M Oshagh, M Oshagh, M Perryman, M. Esposito, M. Esposito, MC Johnson, MC Johnson, MT Richards, MT Richards, N Madhusudhan, N Madhusudhan, N Narita, N Nikolov, O Benomar, P Bodenheimer, P Goldreich, P Molaro, PA Nutzman, PL Wood, PW Sullivan, Q Zhuang, R Alonso, R Cloutier, R Sanchis-Ojeda, R Sanchis-Ojeda, R Sanchis-Ojeda, RA Rossiter, RA Wittenmyer, RI Dawson, RM Petrie, RR Rafikov, S Albrecht, S Albrecht, S Albrecht, S Albrecht, S Albrecht, S Chatterjee, S Doolin, S Naoz, S Naoz, S Seager, Simon Albrecht, Subo Dong, T Hirano, T Hirano, T Louden, T Mazeh, T Močnik, TL Campante, TM Rogers, TR Marsh, V Bourrier, V Bourrier, V Eylen Van, VB Kostov, WJ Chaplin, WJ Chaplin, WR Ward, Y Hosokawa, Y Ohta, Y Wu, Y Wu, Z Kopal, Z Kopal, Zdeněk Kopal   +188 more
core   +1 more source