Results 41 to 50 of about 4,018,158 (274)
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
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Progress in Earth and Planetary Science, 2021 In the East Asian monsoon area, stalagmites generally record lower and higher oxygen isotope (δ18O) levels during warm humid interglacial and cold dry glacial periods, respectively.
Shota Amekawa +8 more
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Cloud Atlas: High-contrast Time-resolved Observations of Planetary-mass Companions [PDF]
Astronomical Journal, 2019 Directly imaged planetary-mass companions offer unique opportunities in atmospheric studies of exoplanets. They share characteristics of both brown dwarfs and transiting exoplanets, and therefore are critical for connecting atmospheric characterizations ...
Yifan Zhou +13 more
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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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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
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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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WFIRST Exoplanet Mass-measurement Method Finds a Planetary Mass of 39 ± 8 M⊕ for OGLE-2012-BLG-0950Lb [PDF]
Astronomical Journal, 2018 We present the analysis of the simultaneous high-resolution images from the Hubble Space Telescope and Keck adaptive optics system of the planetary event OGLE-2012-BLG-0950 that determine that the system consists of a 0.58 ± 0.04 host star orbited by a ...
A. Bhattacharya +15 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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The Hawaii Infrared Parallax Program. III. 2MASS J0249–0557 c: A Wide Planetary-mass Companion to a Low-mass Binary in the β Pic Moving Group [PDF]
Astronomical Journal, 2018 We have discovered a wide planetary-mass companion to the β Pic moving group member 2MASS J02495639−0557352 (M6 vl-g) using Canada–France–Hawaii Telescope/WIRCam astrometry from the Hawaii Infrared Parallax Program.
T. Dupuy +8 more
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Quantifying the Key Factors Affecting the Escape of Planetary Atmospheres
The Astrophysical Journal, 2023 The habitability of Earth-like planets is an increasingly important subject in astrophysics and in planetary sciences. Atmospheric escape plays a vital role in the evolution of the habitability of Earth-like planets.
J. Luo, H.-Q. He, G.-S. Tong, Jiao Li
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