Results 91 to 100 of about 4,598,556 (263)

The Not-so Dramatic Effect of Advective Flows on Gas Accretion

The Astrophysical Journal
Super-Earths and mini-Neptunes are the most common types of exoplanets discovered, yet the physics of their formation are still debated. Standard core accretion models in gas-rich environments find that typical mini-Neptune mass planets would blow up ...
Vincent Savignac, Eve J. Lee
doaj   +1 more source

"Retired" Planet Hosts: Not So Massive, Maybe Just Portly After Lunch

, 2011
Studies of the planet abundance as a function of stellar mass have suggested a strong increase in the frequency of planet occurrence around stars more massive than $1.5 M_\odot$, and that such stars are deficit in short period planets.
Allende Prieto, Ayres, Baines, Bowler, Cassisi, Cassisi, Charbonnel, Crepp, Eggleton, Fischer, Glebocki, Hansen, Johnson, Johnson, Kane, Kim, Matsumura, McCarthy, Paxton, Penev, Reffert, Schlawin, Seager, Takeda, Valenti, van Belle, Villaver, Yi   +27 more
core   +1 more source

Theoretical Spectra of Terrestrial Exoplanet Surfaces [PDF]

, 2012
We investigate spectra of airless rocky exoplanets with a theoretical framework that self-consistently treats reflection and thermal emission. We find that a silicate surface on an exoplanet is spectroscopically detectable via prominent Si-O features in ...
Batalha, Best, Bethany L. Ehlmann, Borucki, Borucki, Cheek, Clark, Clark, Cochran, Cowan, de Pater, Drilling, Farmer, Gautier, Koch, Miller-Ricci, Muirhead, Pieters, Pieters, RELAB Spectral Database, Renyu Hu, Rogers, Salisbury, Sara Seager, Seager, Seager, Sobolev, Sprague, Winn   +28 more
core   +2 more sources

Why do protoplanetary disks appear not massive enough to form the known exoplanet population? [PDF]

Astronomy & Astrophysics, 2018
When and how planets form in protoplanetary disks is still a topic of discussion. Exoplanet detection surveys and protoplanetary disk surveys are now providing results that are leading to new insights.
C. Manara, A. Morbidelli, T. G. ESO-Garching, Laboratoire Lagrange, Oca Nice   +4 more
semanticscholar   +1 more source

The Power of a Name: Toward a Unified Approach to Naming Space Weather Events

Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.
Abstract Our increasing reliance on technology vulnerable to space weather effects underscores the urgent need for effective public communication about these phenomena. While scientific research thrives on precise technical language, broader public engagement necessitates a more accessible and memorable approach.
Sophie Chabanski, Felix de Montety, Jean Lilensten, Stefaan Poedts, Luca Spogli   +4 more
wiley   +1 more source

Formation, Evolution and Multiplicity of Brown Dwarfs and Giant Exoplanets [PDF]

, 2010
"Highlights of Spanish Astrophysics V", Proceedings of the VIII Scientific Meeting of the Spanish Astronomical Society (SEA) held in Santander, 7-11 July, 2008. Edited by J. Gorgas, L. J. Goicoechea, J. I. Gonzalez-Serrano, J. M. Diego.
openaire   +3 more sources

High contrast imaging at the LBT: the LEECH exoplanet imaging survey [PDF]

, 2014
In Spring 2013, the LEECH (LBTI Exozodi Exoplanet Common Hunt) survey began its $\sim$130-night campaign from the Large Binocular Telescope (LBT) atop Mt Graham, Arizona. This survey benefits from the many technological achievements of the LBT, including
Apai, Daniel, Bailey, Vanessa, Biller, Beth, Bonnefoy, Mickael, Brandner, Wolfgang, Buenzli, Esther, Close, Laird, Crepp, Justin, De Rosa, Robert J., Defrere, Denis, Desidera, Silvano, Eisner, Josh, Esposito, Simone, Fortney, Jonathan, Henning, Thomas, Hinz, Philip, Hofmann, Karl-Heinz, Kopytova, Taisiya, Leisenring, Jarron, Maire, Anne-Lise, Males, Jared R., Millan-Gabet, Rafael, Morzinski, Katie, Oza, Apurva, Patience, Jenny, Rajan, Abhijith, Rieke, George, Schertl, Dieter, Schlieder, Joshua, Skemer, Andrew J., Skrutskie, Michael F., Su, Kate, Vaz, Amali, Ward-Duong, Kimberly, Weigelt, Gerd, Woodward, Charles E., Zimmerman, Neil   +36 more
core   +1 more source

Friends Not Foes: Strong Correlation between Inner Super-Earths and Outer Gas Giants

The Astrophysical Journal Letters
The connection between outer gas giants and inner super-Earths reflects their formation and evolutionary histories. Past work exploring this link has suggested a tentative positive correlation between these two populations, but these studies have been ...
Marta L. Bryan, Eve J. Lee
doaj   +1 more source

Comparing Geochemical and Geodynamical Models of Plume and Ridge Mantle Source Composition

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 8, August 2025.
Abstract We use a multidisciplinary approach to investigate how the parameter space of mantle convection affects present‐day mantle composition. We compare 22 forward geodynamical mantle circulation model simulations against 24 variants of a geochemical inversion model of the global radiogenic isotope data set of mantle‐derived lavas.
Paul Béguelin, James Panton, Morten Andersen, Tim Elliott, Huw Davies, Joel Rodney, Abigail Plimmer   +6 more
wiley   +1 more source

Impacting Atmospheres: How Late-stage Pollution Alters Exoplanet Composition

The Astrophysical Journal
The atmospheric composition of exoplanets is often considered as a probe of the planet’s formation conditions. How exactly the initial chemical memory may be altered from the birth to the final state of the planet, however, remains unknown.
Emilia Vlahos, Yayaati Chachan, Vincent Savignac, Eve J. Lee   +3 more
doaj   +1 more source