Results 81 to 90 of about 186,798 (170)

Mass – Radius Relationship in Extrasolar Planets [PDF]

, 2011
The increasing number of Extrasolar planets observed in the last years makes important to define, as soon as possible, a mass – radius relationship, and so, we adjusted an planetary constitution independent experimental equation.
Bezzeghoud, Mourad, Santana, M., Santos, N., Caldeira, Bento   +3 more
core  

Searching for GEMS: The Occurrence of Giant Planets Orbiting M Dwarfs within 100 pc

The Astronomical Journal
We present results from a systematic search for transiting short-period giant exoplanets around M dwarf stars (GEMS; P  
Rowen I. Glusman, Caleb I. Cañas, Shubham Kanodia, Te Han, Rachel B. Fernandes, Guđmundur Stefánsson, Eric B. Ford, Marissa Maney, Andrew Monson, Andrew Hotnisky, Suvrath Mahadevan, Michael Rodruck, Kristo Ment, Andrew McWilliam, William D. Cochran, Knicole D. Colón, Mark R. Giovinazzi, Jaime A. Alvarado-Montes, Chad F. Bender, Cullen H. Blake, Alexandra Boone, Scott A. Diddams, Arvind F. Gupta, Samuel Halverson, Daniel Krolikowski, Andrea S.J. Lin, Joe P. Ninan, Paul Robertson, Arpita Roy, Christian Schwab, Ryan Terrien, Johanna Teske, Jason T. Wright   +32 more
doaj   +1 more source

Planetary population synthesis and the emergence of four classes of planetary system architectures. [PDF]

Eur Phys J Plus, 2023
Emsenhuber A, Mordasini C, Burn R.
europepmc   +1 more source

No Evidence for a Metallicity-dependent Enhancement of Distant Giant Companions to Close-in Small Planets in the California Legacy Survey

The Astronomical Journal
Understanding the relationship between close-in small (CS) planets and distant giants (DGs) is central to understanding the formation of planetary systems like our own.
Judah Van Zandt, Erik A. Petigura
doaj   +1 more source

GEMS JWST: Transmission Spectroscopy of TOI-5205b Reveals Significant Stellar Contamination and a Metal-poor Atmosphere

The Astronomical Journal
Recent discoveries of transiting giant exoplanets ( R _p  ≳ 8 R _⊕ ) around M dwarfs present an opportunity to investigate their atmospheric compositions and explore how such massive planets form around low-mass stars contrary to the prediction from ...
Caleb I. Cañas, Jacob Lustig-Yaeger, Shang-Min Tsai, Simon Müller, Ravit Helled, Shubham Kanodia, Dana R. Louie, Giannina Guzmán Caloca, Peter Gao, Jessica Libby-Roberts, Kevin K. Hardegree-Ullman, Knicole D. Colón, Ian Czekala, Megan Delamer, Te Han, Andrea S.J. Lin, Suvrath Mahadevan, Erin M. May, Joe P. Ninan, Anjali A. A. Piette, Guðmundur Stefánsson, Kevin B. Stevenson, Johanna Teske, Nicole L. Wallack   +23 more
doaj   +1 more source

An effective method in investigating structures of polytropic protoplanets formed via gravitational instability. [PDF]

Heliyon, 2022
Paul GC, Barman MC, Rahman H.
europepmc   +1 more source

Quantitative Links between Formation and Atmospheric Composition for Giant Planets

The Astrophysical Journal Letters
Precise atmospheric abundances of giant exoplanets are becoming increasingly prevalent, and there is a need to systematically convert these measurements into metrics that inform us about the planets’ accretion history. We present a quantitative framework
Yayaati Chachan, Ruth Murray-Clay, Jonathan J. Fortney   +2 more
doaj   +1 more source

Free-floating Planets, Survivor Planets, Captured Planets, and Binary Planets from Stellar Flybys

The Astrophysical Journal
In star clusters, close stellar encounters can strongly impact the architecture of a planetary system or even destroy it. We present a systematic study of the effects of stellar flybys on two-planet systems.
Fangyuan Yu, Dong Lai
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

Probing the Outskirts of M Dwarf Planetary Systems with a Cycle 1 JWST NIRCam Coronagraphy Survey

The Astronomical Journal
The population of giant planets on wide orbits around low-mass M dwarf stars is poorly understood, but the unprecedented sensitivity of JWST NIRCam coronagraphic imaging now provides direct access to planets significantly less massive than Jupiter beyond
Ellis Bogat, Joshua E. Schlieder, Kellen D. Lawson, Yiting Li, Jarron M. Leisenring, Michael R. Meyer, William Balmer, Thomas Barclay, Charles A. Beichman, Geoffrey Bryden, Per Calissendorff, Aarynn L. Carter, Matthew De Furio, Julien H. Girard, Thomas P. Greene, Tyler D. Groff, Jens Kammerer, Jorge Llop-Sayson, Michael W. McElwain, Marcia J. Rieke, Marie Ygouf   +20 more
doaj   +1 more source