Results 61 to 70 of about 213 (136)

Formation of Giant Planets by Gas Disk Gravitational Instability on Wide Orbits around Protostars with Varied Masses. II. Quadrupled Spatial Resolution and Beta Cooling

The Astrophysical Journal
Exoplanet demographics are sufficiently advanced to provide important constraints on theories of planet formation. While core and pebble accretion are preferred for rocky and icy planets, there appears to be a need for gas disk gravitational instability (
Alan P. Boss
doaj   +1 more source

Exploring the link between star and planet formation with Ariel. [PDF]

Exp Astron (Dordr), 2022
Turrini D, Codella C, Danielski C, Fedele D, Fonte S, Garufi A, Guarcello MG, Helled R, Ikoma M, Kama M, Kimura T, Kruijssen JMD, Maldonado J, Miguel Y, Molinari S, Nikolaou A, Oliva F, Panić O, Pignatari M, Podio L, Rickman H, Schisano E, Shibata S, Vazan A, Wolkenberg P.   +24 more
europepmc   +1 more source

Searching for GEMS: TOI-5688 A b, a Low-density Giant Orbiting a High-metallicity Early M-dwarf

The Astronomical Journal
We present the discovery of a low-density planet orbiting the high-metallicity early M-dwarf TOI-5688 A b. This planet was characterized as part of the search for transiting giant planets ( R  ≳ 8 R _⊕ ) through the Searching for Giant Exoplanets around ...
Varghese Reji, Shubham Kanodia, Joe P. Ninan, Caleb I. Cañas, Jessica Libby-Roberts, Andrea S. J. Lin, Arvind F. Gupta, Tera N. Swaby, Alexander Larsen, Henry A. Kobulnicky, Philip I. Choi, Nez Evans, Sage Santomenna, Isabelle Winnick, Larry Yu, Jaime A. Alvarado-Montes, Chad F. Bender, Lia Marta Bernabó, Cullen H. Blake, William D. Cochran, Scott A. Diddams, Samuel Halverson, Te Han, Fred Hearty, Sarah E. Logsdon, Suvrath Mahadevan, Michael W. McElwain, Andrew Monson, Paul Robertson, Devendra K. Ojha, Arpita Roy, Christian Schwab, Gudmundur Stefansson, Jason Wright   +33 more
doaj   +1 more source

Revealing the atmospheres of highly irradiated exoplanets: from ultra-hot Jupiters to rocky worlds. [PDF]

Astrophys Space Sci, 2023
Mansfield M.
europepmc   +1 more source

Searching for GEMS: Characterizing Six Giant Planets Around Cool Dwarfs

The Astronomical Journal
Transiting giant exoplanets around M-dwarf stars (GEMS) are rare, owing to the low-mass host stars. However, the all-sky coverage of TESS has enabled the detection of an increasingly large number of them to enable statistical surveys like the Searching ...
Shubham Kanodia, Arvind F. Gupta, Caleb I. Cañas, Lia Marta Bernabò, Varghese Reji, Te Han, Madison Brady, Andreas Seifahrt, William D. Cochran, Nidia Morrell, Ritvik Basant, Jacob Bean, Chad F. Bender, Zoë L. de Beurs, Allyson Bieryla, Alexina Birkholz, Nina Brown, Franklin Chapman, David R. Ciardi, Catherine A. Clark, Ethan G. Cotter, Scott A. Diddams, Samuel Halverson, Suzanne Hawley, Leslie Hebb, Rae Holcomb, Steve B. Howell, Henry A. Kobulnicky, Adam F. Kowalski, Alexander Larsen, Jessica Libby-Roberts, Andrea S. J. Lin, Michael B. Lund, Rafael Luque, Andrew Monson, Joe P. Ninan, Brock A. Parker, Nishka Patel, Michael Rodruck, Gabrielle Ross, Arpita Roy, Christian Schwab, Guđmundur Stefánsson, Aubrie Thoms, Andrew Vanderburg   +44 more
doaj   +1 more source

Igneous processes in the small bodies of the Solar System I. Asteroids and comets. [PDF]

iScience, 2023
Leone G, Tanaka HKM.
europepmc   +1 more source

Giant Outer Transiting Exoplanet Mass (GOT ‘EM) Survey. V. Two Giant Planets in Kepler-511 but Only One Ran Away

The Astronomical Journal
Systems hosting multiple giant planets are important laboratories for understanding planetary formation and migration processes. We present a nearly decade-long Doppler spectroscopy campaign from the HIRES instrument on the Keck-I telescope to ...
Yayaati Chachan, Paul A. Dalba, Daniel P. Thorngren, Stephen R. Kane, Howard Isaacson, Eve J. Lee, Edward W. Schwieterman, Andrew W. Howard, Matthew J. Payne   +8 more
doaj   +1 more source

Jupiter Science Enabled by ESA's Jupiter Icy Moons Explorer. [PDF]

Space Sci Rev, 2023
Fletcher LN, Cavalié T, Grassi D, Hueso R, Lara LM, Kaspi Y, Galanti E, Greathouse TK, Molyneux PM, Galand M, Vallat C, Witasse O, Lorente R, Hartogh P, Poulet F, Langevin Y, Palumbo P, Gladstone GR, Retherford KD, Dougherty MK, Wahlund JE, Barabash S, Iess L, Bruzzone L, Hussmann H, Gurvits LI, Santolik O, Kolmasova I, Fischer G, Müller-Wodarg I, Piccioni G, Fouchet T, Gérard JC, Sánchez-Lavega A, Irwin PGJ, Grodent D, Altieri F, Mura A, Drossart P, Kammer J, Giles R, Cazaux S, Jones G, Smirnova M, Lellouch E, Medvedev AS, Moreno R, Rezac L, Coustenis A, Costa M.   +49 more
europepmc   +1 more source

Planet Migration in Protoplanetary Disks with Rims

The Astrophysical Journal
Complex structures, including sharp edges, rings, and gaps, have been commonly observed in protoplanetary disks with or without planetary candidates. Here we consider the possibility that they are the intrinsic consequences of angular momentum transfer ...
Zhuoya Cao, Ya-Ping Li, Douglas N.C. Lin, Shude Mao   +3 more
doaj   +1 more source

Gas Giants Formed by Gravitational Instability May Accrete Atmospheres with Superstellar Carbon-to-oxygen Ratios

The Astrophysical Journal
Characterizing the atmospheric compositions of exoplanets, along with determining properties such as their mass, mean density, and orbital configuration, are thought to be an effective means for differentiating between various formation and evolution ...
Alan P. Boss
doaj   +1 more source