Results 41 to 50 of about 3,893,324 (356)
Impact of Planetary Mass Uncertainties on Exoplanet Atmospheric Retrievals [PDF]
Astrophysical Journal, 2019 In current models used to interpret exoplanet atmospheric observations, the planetary mass is treated as a prior and is measured/estimated independently with external methods, such as radial velocity or transit timing variation techniques.
Q. Changeat +3 more
semanticscholar +1 more source
The Astrophysical Journal, 2023 The magnetic activity of a star—which modulates the stellar wind outflow—shapes the immediate environments of orbiting (exo)planets and induces atmospheric loss, thereby impacting their habitability.
Sakshi Gupta +2 more
doaj +1 more source
Planetary mass limits using Hipparcos astrometry [PDF]
Symposium - International Astronomical Union, 2004 Using Hipparcos and Tycho-2 data, together with the radial velocity information, a statistical analysis is applied to all the orbital solutions of planetary candidates, in order to avoid a bias towards small inclinations. There are hints of additional, longer period companions.
Frédéric Arenou, Julienne Palasi
openaire +1 more source
The Astronomical Journal, 2023 We present the analysis of seven microlensing planetary events with planet/host mass ratios q < 10 ^−4 : KMT-2017-BLG-1194, KMT-2017-BLG-0428, KMT-2019-BLG-1806, KMT-2017-BLG-1003, KMT-2019-BLG-1367, OGLE-2017-BLG-1806, and KMT-2016-BLG-1105.
Weicheng Zang +42 more
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System initial mass function of the 25 Ori group from planetary-mass objects to intermediate/high-mass stars [PDF]
Monthly notices of the Royal Astronomical Society, 2019 The stellar initial mass function (IMF) is an essential input for many astrophysical studies but only in a few cases has it been determined over the whole cluster mass range, limiting the conclusions about its nature.
Genaro Su'arez +6 more
semanticscholar +1 more source
Binary Central Stars of Planetary Nebulae
Galaxies, 2020 It is now clear that a vast majority of intermediate-mass stars have stellar and/or sub-stellar companions, therefore it is no longer appropriate to consider planetary nebulae as a single-star phenomenon, although some single, isolated stars may well ...
David Jones
doaj +1 more source
The Astrophysical Journal, 2023 Fundamental to our understanding of planetary bulk compositions is the relationship between their masses and radii, two properties that are often not simultaneously known for most exoplanets.
Shubham Kanodia +4 more
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The Cosmic Zoo: The (Near) Inevitability of the Evolution of Complex, Macroscopic Life
Life, 2016 Life on Earth provides a unique biological record from single-cell microbes to technologically intelligent life forms. Our evolution is marked by several major steps or innovations along a path of increasing complexity from microbes to space-faring ...
William Bains, Dirk Schulze-Makuch
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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
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Constraints on the spin evolution of young planetary-mass companions [PDF]
, 2017 Surveys of young star-forming regions have discovered a growing population of planetary-mass (
M. Bryan +4 more
semanticscholar +1 more source