Results 101 to 110 of about 134,248 (173)

Identifying Close-in Jupiters that Arrived via Disk Migration: Evidence of Primordial Alignment, Preference of Nearby Companions and Hint of Runaway Migration

The Astronomical Journal
Two leading hypotheses for hot Jupiter migration are disk migration and high-eccentricity migration (HEM). Stellar obliquity is commonly used to distinguish them, as high obliquity often accompanies HEM.
Yugo Kawai, Akihiko Fukui, Noriharu Watanabe, Sho Fukazawa, Norio Narita   +4 more
doaj   +1 more source

A Revised Density Estimate for the Largest Known Exoplanet, HAT-P-67 b

The Astronomical Journal
Low-density ( ρ _p  
Gavin Wang, William O. Balmer, Laurent Pueyo, Daniel Thorngren, Stephen P. Schmidt, Le-Chris Wang, Kevin C. Schlaufman, Guðmundur Stefánsson, Zafar Rustamkulov, David K. Sing   +9 more
doaj   +1 more source

Atmospheric composition of exoplanets based on the thermal escape of gases and implications for habitability. [PDF]

Proc Math Phys Eng Sci, 2020
Konatham S, Martin-Torres J, Zorzano MP.
europepmc   +1 more source

Constraining Ongoing Volcanic Outgassing Rates and Interior Compositions of Extrasolar Planets with Mass Measurements of Plasma Tori

The Astrophysical Journal Letters
We present a novel method of constraining volcanic activity on extrasolar terrestrial worlds via characterization of circumstellar plasma tori. Our work generalizes the physics of the Io plasma torus to propose a hypothetical circumstellar plasma torus ...
V. Abby Boehm, Darryl Z. Seligman, Nikole K. Lewis   +2 more
doaj   +1 more source

A Novel Method to Constrain Tidal Quality Factor from A Nonsynchronized Exoplanetary System

The Astrophysical Journal
We propose a novel method to constrain the tidal quality factor, $Q^{\prime} $ , from an observed nonsynchronized star–planet system consisting of a slowly rotating low-mass star and a close-in Jovian planet, taking into account the coevolution of ...
Takato Tokuno, Akihiko Fukui, Takeru K. Suzuki   +2 more
doaj   +1 more source

A planet within the debris disk around the pre-main-sequence star AU Microscopii. [PDF]

Nature, 2020
Plavchan P, Barclay T, Gagné J, Gao P, Cale B, Matzko W, Dragomir D, Quinn S, Feliz D, Stassun K, Crossfield IJM, Berardo DA, Latham DW, Tieu B, Anglada-Escudé G, Ricker G, Vanderspek R, Seager S, Winn JN, Jenkins JM, Rinehart S, Krishnamurthy A, Dynes S, Doty J, Adams F, Afanasev DA, Beichman C, Bottom M, Bowler BP, Brinkworth C, Brown CJ, Cancino A, Ciardi DR, Clampin M, Clark JT, Collins K, Davison C, Foreman-Mackey D, Furlan E, Gaidos EJ, Geneser C, Giddens F, Gilbert E, Hall R, Hellier C, Henry T, Horner J, Howard AW, Huang C, Huber J, Kane SR, Kenworthy M, Kielkopf J, Kipping D, Klenke C, Kruse E, Latouf N, Lowrance P, Mennesson B, Mengel M, Mills SM, Morton T, Narita N, Newton E, Nishimoto A, Okumura J, Palle E, Pepper J, Quintana EV, Roberge A, Roccatagliata V, Schlieder JE, Tanner A, Teske J, Tinney CG, Vanderburg A, von Braun K, Walp B, Wang J, Wang SX, Weigand D, White R, Wittenmyer RA, Wright DJ, Youngblood A, Zhang H, Zilberman P.   +86 more
europepmc   +1 more source

A Review of Possible Planetary Atmospheres in the TRAPPIST-1 System. [PDF]

Space Sci Rev, 2020
Turbet M, Bolmont E, Bourrier V, Demory BO, Leconte J, Owen J, Wolf ET.   +6 more
europepmc   +1 more source

Doomed Worlds. I. No New Evidence for Orbital Decay in a Long-term Survey of 43 Ultrahot Jupiters

The Planetary Science Journal
Ultrahot Jupiters (UHJs) are likely doomed by tidal forces to undergo orbital decay and eventual disruption by their stars, but the timescale over which this process unfolds is unknown. We present results from a long-term project to monitor UHJ transits.
Elisabeth R. Adams, Brian Jackson, Amanda A. Sickafoose, Jeffrey P. Morgenthaler, Hannah Worters, Hailey Stubbers, Dallon Carlson, Sakhee Bhure, Stijn Dekeyser, Chelsea X. Huang, Nevin N. Weinberg   +10 more
doaj   +1 more source

Looking for Rings and Tides in Transiting Exoplanets

, 2021
openaire   +2 more sources

Timescales for Prebiotic Photochemistry Under Realistic Surface Ultraviolet Conditions. [PDF]

Astrobiology, 2021
Rimmer PB, Thompson SJ, Xu J, Russell DA, Green NJ, Ritson DJ, Sutherland JD, Queloz DP.   +7 more
europepmc   +1 more source