Results 191 to 200 of about 1,480 (207)

The Impact of Stellar Flares on the Atmospheric Escape of Exoplanets Orbiting M Stars. I. Insights from the AU Mic System

Laura N. R. do Amaral, Evgenya L. Shkolnik, R. O. Parke Loyd, Sarah Peacock   +3 more
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Dinner with a Star: Stellar Engulfment of Exoplanet Systems

Ashlyn R. Leary, M. V. McSwain
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A Complex Systems Approach to Exoplanet Atmospheric Chemistry: New Prospects for Ruling Out the Possibility of Alien Life As We Know It

Theresa Fisher, Estelle Janin, Sara Imari Walker   +2 more
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Long-term Doppler imaging of the star XX Trianguli indicates chaotic non-periodic dynamo. [PDF]

Nat Commun
Strassmeier KG, Kővári Z, Weber M, Granzer T.   +3 more
europepmc   +1 more source

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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Exoplanet Systems and Their Stars

2018
This chapter highlights the amazing diversity of exoplanet worlds: planets can orbit neutron stars and giant stars, evaporate in the heat of their stars or have deep oceans, and may suffer from everlasting daysides and nightsides. A few enjoy two or more suns, and some bear a rough similarity to Earth with possible liquid water on their surface.
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Polarimetry of the exoplanet system 51 Pegasi

Solar System Research, 2013
Two-year BVRI polarimetric monitoring of the exoplanet system 51 Peg has been carried out, indicating that there is no orbital phase-dependent periodic variability in linear polarization with amplitudes greater than 0.04% in the R and I bands. The mean value of one of the Stokes parameters is statistically significant and nonzero, being equal to 0.017 ±
K. A. Antonyuk, D. N. Shakhovskoi, L. V. Ksanfomaliti   +2 more
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Solar system, exoplanets, and anthropic principle

Bulletin of the Crimean Astrophysical Observatory, 2009
It is shown that the planetary distances of the Solar System are distributed according to the L0 resonance, where L0 = cP0 = 19.24 a.u. is the wavelength of the “cosmological oscillation” of the Universe (whose nature is unknown). Here, c is the speed of light and P0 = 160 min is the period of pulsations of the Sun and the Universe, which turned out to
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Photometric analysis of the exoplanet containing system Kepler-491

AIP Conference Proceedings, 2017
In this study, we present solutions of the transit light curves of the recently discovered planet Kepler-491b observed by Kepler space-telescope within a span of four years. In order to obtain stellar, planetary and orbital properties, WINFITTER code was applied to light curve data available at the NASA Exoplanet Archive (NEA).
SOYDUGAN, FARUK, PÜSKÜLLÜ, ÇAĞLAR
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Exoplanets and Exoplanetary Systems: Pasts and Futures

2011
There are still some uncertainties over the details of how planets, brown dwarfs and stars come into being. The basic process however is clear – a diffuse cloud of gas and dust in inter-stellar space whose mass can range from one to ten million solar masses and whose diameter can range from a light year to hundreds of light years collapses under its ...
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