Results 111 to 120 of about 828 (196)

Breaking Giant Chains: Early-stage Instabilities in Long-period Giant Planet Systems

The Astrophysical Journal
Orbital evolution is a critical process that sculpts planetary systems, particularly during their early stages where planet–disk interactions are expected to lead to the formation of resonant chains.
Vighnesh Nagpal, Max Goldberg, Konstantin Batygin   +2 more
doaj   +1 more source

The GAPS programme at TNG. LXI. Atmospheric parameters and elemental abundances of TESS young exoplanet host stars [PDF]

The study of exoplanets at different evolutionary stages can shed light on their formation, migration, and evolution. The determination of exoplanet properties depends on the properties of their host stars.
R. Cosentino, SOZZETTI, Alessandro, V. D'Orazi, A. F. M. Fiorenzano, BONOMO, ALDO STEFANO, DESIDERA, Silvano, Filomeno, S., Harutyunyan, A., Damasso, M., D'ORAZI, VALENTINA, A. Harutyunyan, T. Zingales, BIAZZO, Katia, Mantovan, G., Cosentino, R., ANTONIUCCI, Simone, V. D’Orazi, Zingales, T., S. Antoniucci, Biazzo, K., Mancini, L., M. Baratella, Andreuzzi, G., Bonomo, A. S., SCANDARIATO, GAETANO, BENATTI, Serena, S. Fonte, S. Messina, M. Damasso, D. Nardiello, Baratella, M., Nardiello, D., BIGNAMINI, ANDREA, Messina, S., S. Filomeno, ANDREUZZI, Gloria, Antoniucci, S., Fiorenzano, A. F. M., Benatti, S., D. Turrini, Carleo, I., K. Biazzo, G. Andreuzzi, S. Desidera, L. Cabona, A. Bignamini, FONTE, SERGIO, Fonte, S., Cabona, L., R. Claudi, Turrini, D., L. Mancini, C. Knapic, TURRINI, Diego, CLAUDI, Riccardo, S. Benatti, D. Polychroni, Polychroni, D., Scandariato, G., Knapic, C., D'Orazi, V., Desidera, S., A. Sozzetti, Bignamini, A., DAMASSO, Mario, Claudi, R., KNAPIC, Cristina, MESSINA, Sergio, G. Mantovan, Sozzetti, A., G. Scandariato, Malavolta, L., A. S. Bonomo, L. Malavolta, COSENTINO, Rosario, I. Carleo   +75 more
core   +1 more source

Origins of Compact Mean-motion Resonances: Evidence for Long-range Migration and the Case of Kepler-36

The Astrophysical Journal
The observed census of resonant extrasolar planets spans a tantalizing display of orbital architectures, ranging from familiar 2:1 and 3:2 mean-motion commensurabilities to nearly coorbital configurations characterized by period ratios close to unity ...
Konstantin Batygin, Alessandro Morbidelli   +1 more
doaj   +1 more source

86th Annual Meeting of the Meteoritical Society (2024)

Meteoritics &Planetary Science, Volume 59, Issue S1, Page A1-A468, August 2024.
wiley   +1 more source

Unified Formation Channel of Hot and Warm Jupiters via Planet–Planet Scattering

The Astrophysical Journal Letters
Recent observations show distinct orbital architectures for hot and warm Jupiters: hot Jupiters span a wide range of stellar obliquities and tend to host distant companions without close-by companions, whereas warm Jupiters are often aligned and ...
Julia Esposito, Gongjie Li, Songhu Wang
doaj   +1 more source

The evolution of hot Jupiters revealed by the age distribution of their host stars. [PDF]

Proc Natl Acad Sci U S A, 2023
Chen DC, Xie JW, Zhou JL, Dong S, Yang JY, Zhu W, Liu C, Huang Y, Xiang MS, Wang HF, Zheng Z, Luo AL, Zhang JH, Zhu Z.   +13 more
europepmc   +1 more source

TOI-2494 c and TOI-5143 c: A Hot Saturn and a Hot Jupiter with Interior Planetary Companions

The Astronomical Journal
We present the TESS-based discoveries of planetary systems orbiting the late G dwarfs TOI-2494 and TOI-5143, each of which harbors a hot giant planet and a smaller interior planet. TOI-2494 hosts a transiting mini-Neptune ( P = 2.41 days, $\,{R}_{{\rm{P}}
Samuel N. Quinn, Joseph E. Rodriguez, Karen A. Collins, Allyson Bieryla, W. J. Brennom, Jiayin Dong, Kyle Hixenbaugh, David W. Latham, Brandon T. Radzom, Andrew Vanderburg, Songhu Wang, Samuel W. Yee, George Zhou, Isabelle Boisse, Ilaria Carleo, Pia Cortés-Zuleta, Xavier Delfosse, Thierry Forveille, Davide Gandolfi, Elisa Goffo, Guillaume Hébrard, Neda Heidari, Flavien Kiefer, Eder Martioli, Grzegorz Nowak, Enric Palle, Rafael Brahm, Thomas Henning, Melissa J. Hobson, Matias Jones, Andrés Jordán, Chelsea X. Huang, Lizhou Sha, Alton Spencer, Ashley Ashiku, Khalid Barkaoui, Zouhair Benkhaldoun, Perry Berlind, Michael L. Calkins, Kevin I. Collins, Dennis M. Conti, Gilbert A. Esquerdo, Phil Evans, Mark E. Everett, Mourad Ghachoui, Michaël Gillon, Elisabeth Heldridge, Keith Horne, Steve B. Howell, Emmanuël Jehin, Christopher R. Mann, Adam Popowicz, Francisco J. Pozuelos, Justus J. Randolph, Howard M. Relles, Boris Safonov, Richard P. Schwarz, Jonathan J. Swift, Thiam-Guan Tan, Mathilde Timmermans, Cristilyn N. Watkins, Roberto Zambelli, Carl Ziegler, Jessie L. Christiansen, Tansu Daylan, Martin Paegert, Eric B. Ting, Jon M. Jenkins, George R. Ricker, Sara Seager, Roland K. Vanderspek, Joshua N. Winn   +71 more
doaj   +1 more source

JWST's eyes on an alien world. [PDF]

Innovation (Camb), 2023
Zhang X.
europepmc   +1 more source

Study of Exoplanet Migration Mechanisms with the Direct Imaging Method

Study of Exoplanet Migration Mechanisms with the Direct Imaging Method
学位の種別:課程博士 審査委員会委員 : （主査）東京大学教授 小久保 英一郎, 東京大学准教授 宮田 隆志, 東京大学准教授 片坐 宏一, 東京大学准教授 生駒 大洋, 大阪大学教授 芝井 ...
openaire  

The influence of hypothetical exomoons on planetary thermal phase curves

Astronomy & Astrophysics
Context. More than 200 moons exist in our Solar System, yet no exomoon has been confirmed to date. While the innermost two planets of the Solar System lack natural satellites and most studies favour the existence of exomoons around long-period planets ...
Song Xinyi, Yang Jun, Ouyang Yueyun
doaj   +1 more source