Results 51 to 60 of about 1,706 (153)
Models of Star-Planet Magnetic Interaction [PDF]
, 2017 23 pages, 10 figures, accepted as a chapter in the Handbook of ...
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EPJ Web of Conferences, 2015 An overview of what we know about the climate of the planet Earth up to 5.5 millions of years from now is presented first, with the air temperature in proximity to the surface as the main, and more feasible, parameter to be followed. The behavior of this
Brunetti M., Prodi F.
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Enshrouding & Star-planet Interactions in Close-orbiting Systems [PDF]
, 2020 The OU-SALT survey of the chromospheric activity of close-orbiting, transiting exoplanet hosts is unique. Emission flux in stellar Ca II H & K line cores is measured using the same telescope, spectrograph and calibration. I present homogeneous log(R'$_{HK}$) values for 104 bright southern hemisphere stars, ∼90% of which host hot Jupiters.
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The Influence of General Relativity on the Spins of Celestial Bodies in Inclined Orbits
The Astrophysical JournalThrough the Rossiter–McLaughlin effect, several hot Jupiters have been found to exhibit spin–orbit misalignment and even retrograde orbits. The high obliquity observed in these planets can be attributed to two primary formation mechanisms, as summarized ...
Huan-Rong Yuan +6 more
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The Astrophysical Journal LettersA significant proportion of exoplanets have been detected with highly tilted or even polar orbits relative to their host stars’ equatorial planes. These unusual orbital configurations are often linked to postdisk secular interactions among multiple ...
Tao Fu, Yue Wang
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A predictive framework for realistic star-planet radio emission in compact systems
Astronomy & AstrophysicsContext. Radio emission from star-planet interactions (SPIs) beyond our Solar System has yet to be firmly detected, primarily due to weak signals, directional beaming effects, and low-frequency emissions blocked by Earth’s ionosphere.
Chebly J. J. +4 more
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Stellar coronal magnetic fields and star-planet interaction [PDF]
Astronomy & Astrophysics, 2009 Evidence of magnetic interaction between late-type stars and close-in giant planets is provided by the observations of stellar hot spots rotating synchronously with the planets and showing an enhancement of chromospheric and X-ray fluxes. We investigate star-planet interaction in the framework of a magnetic field model of a stellar corona, considering ...
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Bifurcated Evolutionary Pathways in Multiplanet Systems Driven by Misaligned Protoplanetary Disks
The Astrophysical Journal LettersStellar obliquities, or spin–orbit angles, prevalent in exoplanet systems, can impose important constraints on their formation and evolution histories.
Tao Fu, Yue Wang, Weiduo Hu
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Revealing a Main-sequence Star that Consumed a Planet with JWST
The Astrophysical JournalThe subluminous red nova (SLRN) Zwicky Transient Facility (ZTF) SLRN-2020 is the most compelling direct detection of a planet being consumed by its host star, a scenario known as a planetary engulfment event. We present JWST spectroscopy of ZTF SLRN-2020
Ryan M. Lau +10 more
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Saturation of Ionospheric Currents under Extreme Environments
The Astrophysical JournalStrong solar wind conditions can drive large electric potentials across planetary polar caps, but previous studies have shown that the cross polar cap potential reaches a saturation point during periods of high interplanetary magnetic field (IMF ...
Fatemeh Bagheri, Alex Glocer
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