Results 111 to 120 of about 2,690,574 (274)

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

The multiplicity of exoplanet host stars - New low-mass stellar companions of the exoplanet host stars HD125612 and HD212301

, 2008
Aims: We present new results from our ongoing multiplicity study of exoplanet host stars, carried out with SofI/NTT. We provide the most recent list of confirmed binary and triple star systems that harbor exoplanets.
Bakos, Bakos, Baraffe, Bonavita, Chauvin, Chauvin, Cushing, Desidera, Eggenberger, Eggenberger, Fischer, Holman, Holmberg, Lagrange, Liu, Lo Curto, Luhman, Luhman, M. Mugrauer, Mayor, Monet, Mugrauer, Mugrauer, Mugrauer, Mugrauer, Mugrauer, Mugrauer, Mugrauer, Mugrauer, Neuhäuser, Patience, Pickles, R. Neuhäuser, Raghavan, Reid, Skrutskie, Tamuz   +36 more
core   +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

Investigating the Origins of Hot Neptunes from Radial Velocity Data

The Astronomical Journal
Hot Neptunes are extrasolar planets that are similar in size to Neptune in our solar system but are much closer to their host stars, completing an orbit in 10 days or less. The origin of hot Neptunes is not fully understood.
Sophie Y. Zheng
doaj   +1 more source

Let’s Sweep: The Effect of Evolving J 2 on the Resonant Structure of a Three-planet System

The Astrophysical Journal, 2023
Short and ultrashort period planets are peculiar types of exoplanets with periods as short as a few days or less. Although it is challenging to detect them, already several have been observed, with many additional candidates.
Thea H. Faridani, Smadar Naoz, Gongjie Li, Nicholas Inzunza   +3 more
doaj   +1 more source

Understanding the evolution of EXOplanets and towards habitable WORLDs [PDF]

, 2023

openalex   +1 more source

The Prevalence of Resonance Among Young, Close-in Planets

The Astronomical Journal
Multiple planets undergoing disk migration may be captured into a chain of mean-motion resonances with the innermost planet parked near the disk’s inner edge.
Fei Dai, Max Goldberg, Konstantin Batygin, Jennifer van Saders, Eugene Chiang, Nick Choksi, Rixin Li, Erik A. Petigura, Gregory J. Gilbert, Sarah C. Millholland, Yuan-Zhe Dai, Luke Bouma, Lauren M. Weiss, Joshua N. Winn   +13 more
doaj   +1 more source

Ohmic Dissipation During the Formation of Super-Earth

The Astrophysical Journal, 2023
The super-Earth population, as one of the representatives of exoplanets, plays an important role in constraining the planet formation theories. According to the prediction from core-accretion models, super-Earths should be rare because their masses are ...
Shi Jia, Wei, Zhong, Cong Yu
doaj   +1 more source

On the protection of extrasolar Earth-like planets around K/M stars against galactic cosmic rays

, 2009
Previous studies have shown that extrasolar Earth-like planets in close-in habitable zones around M-stars are weakly protected against galactic cosmic rays (GCRs), leading to a strongly increased particle flux to the top of the planetary atmosphere.
A. Stadelmann, Beaulieu, Belisheva, Buccino, Correia, Crutzen, Fichtner, Fridlund, Goldreich, Grenfell, Grenfell, Grießmeier, Grießmeier, Grießmeier, H. Lammer, Haagen-Smit, Heath, Heber, Holzwarth, Hubbard, J.-M. Grießmeier, J.L. Grenfell, Joshi, Joshi, Kallenrode, Kasting, Khodachenko, Kuchner, Lammer, Lammer, Lestrade, Lovelock, Lovis, Léger, MacDonald, Mann, McDonald, Murray, Parker, Peale, Prölss, Reeves, Ribas, Rivera, Sagan, Scalo, Scherer, Schindler, Selsis, Selsis, Selsis, Seo, Shea, Smart, Smith, Tarter, U. Motschmann, Udry, Valencia, Valencia, Vogt, Voigt, Voigt, Wood, Wood   +64 more
core   +3 more sources

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