Results 161 to 170 of about 1,052,175 (256)

Host-star Properties of Hot, Warm, and Cold Jupiters in the Solar Neighborhood from Gaia Data Release 3: Clues to Formation Pathways

The Astronomical Journal
Giant planets exhibit diverse orbital properties, hinting at their distinct formation and dynamic histories. In this paper, using Gaia Data Release 3 (DR3), we investigate if and how the orbital properties of Jupiters are linked to their host star ...
Bihan Banerjee, Mayank Narang, P. Manoj, Thomas Henning, Himanshu Tyagi, Arun Surya, Prasanta K. Nayak, Mihir Tripathi   +7 more
doaj   +1 more source

A broadband thermal emission spectrum of the ultra-hot Jupiter WASP-18b. [PDF]

Nature, 2023
Coulombe LP, Benneke B, Challener R, Piette AAA, Wiser LS, Mansfield M, MacDonald RJ, Beltz H, Feinstein AD, Radica M, Savel AB, Dos Santos LA, Bean JL, Parmentier V, Wong I, Rauscher E, Komacek TD, Kempton EM, Tan X, Hammond M, Lewis NT, Line MR, Lee EKH, Shivkumar H, Crossfield IJM, Nixon MC, Rackham BV, Wakeford HR, Welbanks L, Zhang X, Batalha NM, Berta-Thompson ZK, Changeat Q, Désert JM, Espinoza N, Goyal JM, Harrington J, Knutson HA, Kreidberg L, López-Morales M, Shporer A, Sing DK, Stevenson KB, Aggarwal K, Ahrer EM, Alam MK, Bell TJ, Blecic J, Caceres C, Carter AL, Casewell SL, Crouzet N, Cubillos PE, Decin L, Fortney JJ, Gibson NP, Heng K, Henning T, Iro N, Kendrew S, Lagage PO, Leconte J, Lendl M, Lothringer JD, Mancini L, Mikal-Evans T, Molaverdikhani K, Nikolov NK, Ohno K, Palle E, Piaulet C, Redfield S, Roy PA, Tsai SM, Venot O, Wheatley PJ.   +75 more
europepmc   +1 more source

Evidence for Primordial Alignment: Insights from Stellar Obliquity Measurements for Compact Sub-Saturn Systems

The Astronomical Journal
Despite decades of effort, the mechanisms by which the spin axis of a star and the orbital axes of its planets become misaligned remain elusive. In particular, it is of great interest whether the large spin–orbit misalignments observed are driven ...
Brandon T. Radzom, Jiayin Dong, Malena Rice, Xian-Yu Wang, Samuel W. Yee, Tyler R. Fairnington, Cristobal Petrovich, Songhu Wang   +7 more
doaj   +1 more source

The Nature and Origins of Sub-Neptune Size Planets. [PDF]

J Geophys Res Planets, 2021
Bean JL, Raymond SN, Owen JE.
europepmc   +1 more source

TOI-4504: Exceptionally Large Transit Timing Variations Induced by Two Resonant Warm Gas Giants in a Three-planet System

The Astrophysical Journal Letters
We present a joint analysis of transit timing variations (TTVs) and Doppler data for the transiting exoplanet system TOI-4504. TOI-4504 c is a warm Jupiter-mass planet that exhibits the largest known TTVs, with a peak-to-node amplitude of ∼2 days, the ...
Michaela Vítková, Rafael Brahm, Trifon Trifonov, Petr Kabáth, Andrés Jordán, Thomas Henning, Melissa J. Hobson, Jan Eberhardt, Marcelo Tala Pinto, Felipe I. Rojas, Nestor Espinoza, Martin Schlecker, Matías I. Jones, Maximiliano Moyano, Susana Eyheramendy, Carl Ziegler, Jack J. Lissauer, Andrew Vanderburg, Karen A. Collins, Bill Wohler, David Watanabe, George R. Ricker, Roland Vanderspek, Sara Seager, Joshua N. Winn, Jon M. Jenkins, Marek Skarka   +26 more
doaj   +1 more source

Halting the migration of super-Earths by efficient gap opening in radiative, low viscosity disks [PDF]

arXiv
While planet migration has been extensively studied for classical viscous disks, planet-disk interaction in nearly inviscid disks has mostly been explored with greatly simplified thermodynamics. In such environments, motivated by models of wind-driven accretion disks, even Earth-mass planets located interior to 1 au can significantly perturb the disk ...
arxiv  

No Signature of the Birth Environment of Exoplanets from Their Host Stars’ Mahalanobis Phase Space

The Astrophysical Journal
The architectures of extrasolar planetary systems often deviate considerably from the “standard” model for planet formation, which is largely based on our own solar system.
George A. Blaylock-Squibbs, Richard J. Parker, Emma C. Daffern-Powell   +2 more
doaj   +1 more source

The homogeneous characterisation of Ariel host stars. [PDF]

Exp Astron (Dordr), 2022
Danielski C, Brucalassi A, Benatti S, Campante T, Delgado-Mena E, Rainer M, Sacco G, Adibekyan V, Biazzo K, Bossini D, Bruno G, Casali G, Kabath P, Magrini L, Micela G, Morello G, Palladino P, Sanna N, Sarkar S, Sousa S, Tsantaki M, Turrini D, Van der Swaelmen M.   +22 more
europepmc   +1 more source

Atmospheric Mass Loss from TOI-1259 A b, a Gas Giant Planet with a White Dwarf Companion

The Astronomical Journal
The lack of close-in Neptune-mass exoplanets evident in transit surveys has largely been attributed to either photoevaporative mass loss or high-eccentricity migration.
Morgan Saidel, Shreyas Vissapragada, Jessica Spake, Heather A. Knutson, Dion Linssen, Michael Zhang, Michael Greklek-McKeon, Jorge Pérez-González, Antonija Oklopčić   +8 more
doaj   +1 more source

On a Possible Solution to the Tidal Realignment Problem for Hot Jupiters. [PDF]

Astrophys J, 2021
Anderson KR, Winn JN, Penev K.
europepmc   +1 more source