Results 71 to 80 of about 4,196,309 (173)
Exoplanet transit data analysis
, 2022 Notebook on analysing exoplanet transit ...
Babatunde Akinsanmi
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A Tale of Dynamical Instabilities and Giant Impacts in the Exoplanet Radius Valley
The Astrophysical Journal LettersThe size distribution of planets with radii between 1 R _⊕ and 4 R _⊕ peaks near 1.4 R _⊕ and 2.2 R _⊕ , with a dip around 1.8 R _⊕ —the so-called “radius valley.” Recent statistical analyses suggest that planets within this valley (1.5
Sho Shibata, Andre Izidoro
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Most Super-Earths Have Less Than 3% Water
The Astrophysical JournalSuper-Earths are highly irradiated, small planets with bulk densities approximately consistent with Earth. We construct combined interior atmosphere models of super-Earths that trace the partitioning of water throughout a planet, including an iron-rich ...
James G. Rogers +4 more
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Understanding exoplanet formation, structure and evolution in 2010 [PDF]
, 2010 In this short review, we summarize our present understanding (and non-understanding) of exoplanet formation, structure and evolution, in the light of the most recent discoveries.
Jérémy Leconte +2 more
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Early Accretion of Large Amounts of Solids for Directly Imaged Exoplanets
The Astrophysical JournalAs the number of planetary-mass objects (PMOs; ⪅13 M _Jupiter ) at wider separation (⪆10 au) grows, there is emerging evidence that they form differently from their higher-mass brown dwarf counterparts.
Ji Wang
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The Astrophysical Journal LettersThe correlation between the inner small planets and cold giants encodes the formation and evolution of planetary systems. It remains unclear if the correlation differs on the two sides of the radius valley.
Di-Chang Chen +4 more
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Abiotic ozone and oxygen in atmospheres similar to prebiotic earth [PDF]
, 2014 The search for life on planets outside our solar system will use spectroscopic identification of atmospheric biosignatures. The most robust remotely detectable potential biosignature is considered to be the detection of oxygen (O2) or ozone (O3 ...
Domagal-Goldman, Shawn D. +10 more
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The Polar Orbit of TOI-2374 b, a Planet in the Neptunian Ridge
The Astronomical JournalThe “Neptunian ridge” is a recently identified peak in the frequency of planets with sizes between that of Neptune and Saturn orbiting their host stars with periods between 3 and 6 days.
Samuel W. Yee +13 more
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The Compositions of the HR 8799 Planets Reflect Accretion of Both Solids and Metal-enriched Gas
The Astrophysical JournalWith four giant planets ( m ∼ 5 M _Jup −10 M _Jup , T _eff ∼ 900–1200 K) orbiting between 15 and 70 au, HR 8799 provides an unparalleled test bed for studying giant planet formation and probing compositional trends across the protoplanetary disk.
Jerry W. Xuan +26 more
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On The Stellar Companion To The Exoplanet Hosting Star 30 Arietis B [PDF]
, 2015 A crucial aspect of understanding planet formation is determining the binarity of the host stars. Results from radial velocity (RV) surveys and the follow-up of Kepler exoplanet candidates have demonstrated that stellar binarity certainly does not ...
Jensen, Eric L. N. +16 more
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