Results 131 to 140 of about 1,322 (222)

An extended hydrogen envelope of the extremely hot giant exoplanet KELT-9b [PDF]

, 2018
Giant exoplanets orbiting close to their host stars have high temperatures because of the immense amount of stellar irradiation that they receive. The extreme energy input leads to the expansion of the atmosphere and the escape of neutral hydrogen1-3. An
Yan, F., Henning, T.
core  

Unexpected Near-Resonant and Metastable States of Young Multiplanet Systems

The Astrophysical Journal
Recent observations suggest that the incidence of near-resonant planets declines as planetary systems age, making young planetary systems key signposts of early dynamical evolution.
Zhecheng Hu, Fei Dai, Wei Zhu, Mu-Tian Wang, Max Goldberg, Caleb Lammers, Kento Masuda   +6 more
doaj   +1 more source

Hide and seek : radial-velocity searches for planets around active stars [PDF]

, 2015
The detection of low-mass extra-solar planets through radial-velocity searches is currently limited by the intrinsic magnetic activity of the host stars.
Haywood, Raphaëlle D.
core  

Rattle-and-break: The Impact of Planetesimal Scattering on Super-Earth Resonant Chains

The Astrophysical Journal
The spacings of super-Earths in multitransiting systems exhibit a distribution that is broad and mostly featureless, with the exception of notable excesses of planet pairs situated a few percent wide of first-order mean-motion resonances (MMRs).
Sam Hadden, Yanqin Wu
doaj   +1 more source

Dynamics and Control of a Disordered System in Space [PDF]

, 2013
In this paper, we present some ideas regarding the modeling, dynamics and control aspects of granular spacecraft. Granular spacecraft are complex multibody systems composed of a spatially disordered distribution of a large number of elements, for ...
Swartzlander, Grover, Basinger, Scott, Quadrelli, Marco B.   +2 more
core  

Clouds and Hazes in GJ 1214 b’s Metal-rich Atmosphere

The Astronomical Journal
The sub-Neptune GJ 1214 b has an infamously flat transmission spectrum, likely due to thick aerosols in its atmosphere. A recent JWST/MIRI spectroscopic phase curve of GJ 1214 b added to this picture, suggesting a highly reflective and metal-rich ...
Isaac Malsky, Emily Rauscher, Kevin Stevenson, Arjun B. Savel, Maria E. Steinrueck, Peter Gao, Eliza M.-R. Kempton, Michael T. Roman, Jacob L. Bean, Michael Zhang, Vivien Parmentier, Anjali A. A. Piette, Tiffany Kataria   +12 more
doaj   +1 more source

A young progenitor for the most common planetary systems in the Galaxy. [PDF]

Nature
Livingston JH, Petigura EA, David TJ, Masuda K, Owen J, Nesvorný D, Batygin K, de Leon J, Mori M, Ikuta K, Fukui A, Watanabe N, Orell Miquel J, Murgas F, Parviainen H, Korth J, Libotte F, Abreu García N, Gallardo PPM, Narita N, Pallé E, Tamura M, Yonehara A, Ridden-Harper A, Bieryla A, Trani AA, Mamajek EE, Ciardi DR, Gorjian V, Hillenbrand LA, Rebull LM, Newton ER, Mann AW, Vanderburg A, Stefánsson G, Mahadevan S, Cañas C, Ninan J, Higuera J, Todorov K, Désert JM, Pino L.   +41 more
europepmc   +1 more source

Fundamentals of Interior Modelling and Challenges in the Interpretation of Observed Rocky Exoplanets. [PDF]

Space Sci Rev
Baumeister P, Miozzi F, Guimond CM, Steinmeyer ML, Dorn C, Karato SI, Bolmont É, Revol A, Thamm A, Noack L.   +9 more
europepmc   +1 more source

Analogous response of temperate terrestrial exoplanets and Earth's climate dynamics to greenhouse gas supplement. [PDF]

Sci Rep, 2023
Hochman A, Komacek TD, De Luca P.
europepmc   +1 more source

Exo-Geoscience Perspectives Beyond Habitability. [PDF]

Space Sci Rev
Spohn T, Roberge A, Way MJ, Duarte JC, Miozzi F, Baumeister P, Byrne P, Lineweaver CH.   +7 more
europepmc   +1 more source