Results 151 to 160 of about 1,052,175 (256)

Exoplanets, extraterrestrial life and beyond: an interview with Douglas Lin. [PDF]

Natl Sci Rev, 2022
Xin 辛玲 L.
europepmc   +1 more source

Young Planets around Young Accreting Stars: I. Migration and Inner Stalling Orbits [PDF]

arXiv
Planet migration within inner protoplanetary disks significantly influences exoplanet architectures. We investigate various migration mechanisms for young planets close to young stars. To quantify the stochastic migration driven by turbulent disks, we incorporate planets into existing 3-D MHD disk simulations of magnetospheric accretion.
arxiv  

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

The OATMEAL Survey. I. Low Stellar Obliquity in the Transiting Brown Dwarf System GPX-1

The Astronomical Journal
We introduce the OATMEAL survey, an effort to measure the obliquities of stars with transiting brown dwarf companions. We observed a transit of the close-in ( P _orb = 1.74 days) brown dwarf GPX-1 b using the Keck Planet Finder spectrograph to measure ...
Steven Giacalone, Fei Dai, J. J. Zanazzi, Andrew W. Howard, Courtney D. Dressing, Joshua N. Winn, Ryan A. Rubenzahl, Theron W. Carmichael, Noah Vowell, Aurora Kesseli, Samuel Halverson, Howard Isaacson, Max Brodheim, William Deich, Benjamin J. Fulton, Steven R. Gibson, Grant M. Hill, Bradford Holden, Aaron Householder, Stephen Kaye, Russ R. Laher, Kyle Lanclos, Joel Payne, Erik A. Petigura, Arpita Roy, Christian Schwab, Abby P. Shaum, Martin M. Sirk, Chris Smith, Guðmundur Stefánsson, Josh Walawender, Sharon X. Wang, Lauren M. Weiss, Sherry Yeh   +33 more
doaj   +1 more source

The timescale for giant planet formation : constraints from the rotational evolution of exoplanet host stars

, 2008
The timescale over which planets may form in the circumstellar disks of young stars is one of the main issues of current planetary formation models. We present here new constraints on planet formation timescales derived from the rotational evolution of ...
Bouvier, Jerome
core   +1 more source

The Fate of Oceans on First-generation Planets Orbiting White Dwarfs

The Astrophysical Journal
Several groups have recently suggested that small planets orbiting very closely around white dwarf stars could be promising locations for life to arise, even after stellar death.
Juliette Becker, Andrew Vanderburg, Joseph R. Livesey   +2 more
doaj   +1 more source

TOI-6038 A b: A Dense Sub-Saturn in the Transition Regime between the Neptunian Ridge and Savanna

The Astronomical Journal
We present the discovery and characterization of a sub-Saturn exoplanet, TOI-6038 A b, using the PARAS-2 spectrograph. The planet orbits a bright ( m _V  = 9.9), metal-rich late F-type star, TOI-6038 A, with T _eff  = 6110 ± 100 K, $\mathrm{log}\,g=4.11 ...
Sanjay Baliwal, Rishikesh Sharma, Abhijit Chakraborty, K. J. Nikitha, A. Castro-González, Hareesh G. Bhaskar, Akanksha Khandelwal, David W. Latham, Allyson Bieryla, Vincent Bourrier, Neelam J. S. S. V. Prasad, Kapil K. Bharadwaj, Kevikumar A. Lad, Ashirbad Nayak, Vishal Joshi, Jason D. Eastman   +15 more
doaj   +1 more source

Planet population synthesis: the role of stellar encounters. [PDF]

Mon Not R Astron Soc, 2022
Ndugu N, Abedigamba OP, Andama G.
europepmc   +1 more source

The Cold Jupiter Eccentricity Distribution is Consistent with EKL Driven by Stellar Companions

The Astrophysical Journal Letters
The large eccentricities of cold Jupiters and the existence of hot Jupiters have long challenged theories of planet formation. A proposed solution to both of these puzzles is high-eccentricity migration, in which an initially cold Jupiter is excited to ...
Grant C. Weldon, Smadar Naoz, Bradley M. S. Hansen   +2 more
doaj   +1 more source

Early Release Science of the exoplanet WASP-39b with JWST NIRISS. [PDF]

Nature, 2023
Feinstein AD, Radica M, Welbanks L, Murray CA, Ohno K, Coulombe LP, Espinoza N, Bean JL, Teske JK, Benneke B, Line MR, Rustamkulov Z, Saba A, Tsiaras A, Barstow JK, Fortney JJ, Gao P, Knutson HA, MacDonald RJ, Mikal-Evans T, Rackham BV, Taylor J, Parmentier V, Batalha NM, Berta-Thompson ZK, Carter AL, Changeat Q, Dos Santos LA, Gibson NP, Goyal JM, Kreidberg L, López-Morales M, Lothringer JD, Miguel Y, Molaverdikhani K, Moran SE, Morello G, Mukherjee S, Sing DK, Stevenson KB, Wakeford HR, Ahrer EM, Alam MK, Alderson L, Allen NH, Batalha NE, Bell TJ, Blecic J, Brande J, Caceres C, Casewell SL, Chubb KL, Crossfield IJM, Crouzet N, Cubillos PE, Decin L, Désert JM, Harrington J, Heng K, Henning T, Iro N, Kempton EM, Kendrew S, Kirk J, Krick J, Lagage PO, Lendl M, Mancini L, Mansfield M, May EM, Mayne NJ, Nikolov NK, Palle E, Petit Dit de la Roche DJM, Piaulet C, Powell D, Redfield S, Rogers LK, Roman MT, Roy PA, Nixon MC, Schlawin E, Tan X, Tremblin P, Turner JD, Venot O, Waalkes WC, Wheatley PJ, Zhang X.   +88 more
europepmc   +1 more source