Results 41 to 50 of about 22,677,777 (195)
Solar System Planets and Exoplanets
, 2021 Solar System planets have been studied for centuries, but the observation of exoplanets is only a few decades old. Consequently, knowledge of exoplanets is considerably more limited than Solar System planets. This chapter reviews the essential characteristics of Solar System planets and associated data derived from a variety of observational approaches.
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A nearby transiting rocky exoplanet that is suitable for atmospheric investigation [PDF]
Science, 2021 A transiting rocky planet 8 parsecs away Most exoplanets have been detected using either the radial velocity (RV) method or the transit method, which provide only limited information on the planet's physical properties.
T. Trifonov +68 more
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Search for (sub)stellar Companions of Exoplanet Hosts by Exploring the Second ESA-Gaia Data Release
Frontiers in Astronomy and Space Sciences, 2021 We present the latest results of an ongoing multiplicity survey of exoplanet hosts, which was initiated at the Astrophysical Institute and University Observatory Jena, using data from the second data release of the ESA-Gaia mission.
K.-U. Michel, M. Mugrauer
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Homogeneous Transit Timing Analyses of Ten Exoplanet Systems [PDF]
, 2022 16 pages, 5 figures, accepted for publication by the ...
Baştürk, Ö +21 more
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ASTEROSEISMIC DETERMINATION OF OBLIQUITIES OF THE EXOPLANET SYSTEMS KEPLER-50 AND KEPLER-65 [PDF]
, 2013 Results on the obliquity of exoplanet host stars—the angle between the stellar spin axis and the planetary orbital axis—provide important diagnostic information for theories describing planetary formation.
W. Chaplin +30 more
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The Astronomical Journal, 2023 The K-type star TOI-2525 has an estimated mass of M = ${0.849}_{-0.033}^{+0.024}$ M _⊙ and radius of R = ${0.785}_{-0.007}^{+0.007}$ R _⊙ observed by the TESS mission in 22 sectors (within sectors 1 and 39).
Trifon Trifonov +46 more
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Resilient habitability of nearby exoplanet systems [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 ABSTRACT We investigate the possibility of finding Earth-like planets in the habitable zone of 34 nearby FGK-dwarfs, each known to host one giant planet exterior to their habitable zone detected by RV. First we simulate the dynamics of the planetary systems in their present day configurations and determine the fraction of stable ...
Giorgi Kokaia +2 more
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X-Ray studies of exoplanet systems [PDF]
, 2022 X-rays are integral to furthering our knowledge of exoplanetary systems. In this work we discuss the use of X-ray observations to understand star-planet interac- tions, mass-loss rates of an exoplanet’s atmosphere and the study of an exoplanet’s atmospheric components using future X-ray spectroscopy.
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MEAN MOTION RESONANCES IN EXOPLANET SYSTEMS: AN INVESTIGATION INTO NODDING BEHAVIOR [PDF]
, 2012 Motivated by the large number of extrasolar planetary systems that are near mean motion resonances, this paper explores a related type of dynamical behavior known as “nodding.” Here, the resonance angle of a planetary system executes libration ...
Jacob A. Ketchum, F. Adams, A. Bloch
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Solar System Physics for Exoplanet Research
Publications of the Astronomical Society of the Pacific, 2020 Abstract Over the past three decades, we have witnessed one of the great revolutions in our understanding of the cosmos—the dawn of the Exoplanet Era. Where once we knew of just one planetary system (the solar system), we now know of thousands, with new systems being announced on a weekly basis.
J. Horner +15 more
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