Results 21 to 30 of about 94,613 (301)
A Massive Hot Jupiter Orbiting a Metal-rich Early M Star Discovered in the TESS Full-frame Images
The Astronomical Journal, 2023 Observations and statistical studies have shown that giant planets are rare around M dwarfs compared with Sun-like stars. The formation mechanism of these extreme systems has remained under debate for decades. With the help of the TESS mission and ground-
Tianjun Gan +43 more
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Longitudinally Modulated Dynamo Action in Simulated M-dwarf Stars
The Astrophysical Journal, 2022 Abstract M-dwarf stars are well known for the intense magnetic activity that many of them exhibit. In cool stars with near-surface convection zones, this magnetic activity is thought to be driven largely by the interplay of convection and the large-scale differential rotation and circulations it establishes.
Connor P. Bice, Juri Toomre
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Global trends in winds of M dwarf stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT M dwarf stars are currently the main targets in searches for potentially habitable planets. However, their winds have been suggested to be harmful to planetary atmospheres. Here, in order to better understand the winds of M dwarfs and also infer their physical properties, we perform a one-dimensional magnetohydrodynamic ...
A A Vidotto, A L Mesquita
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Metallicities of M Dwarf Planet Hosts from Spectral Synthesis [PDF]
, 2006 We present the first spectroscopic metallicities of three M dwarfs with known or candidate planetary mass companions. We have analyzed high resolution, high signal-to-noise spectra of these stars which we obtained at McDonald Observatory.
Delfosse X. +10 more
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HAZMAT VI: The Evolution of Extreme Ultraviolet Radiation Emitted from Early M Star [PDF]
, 2020 Quantifying the evolution of stellar extreme ultraviolet (EUV, 100 -- 1000 $\overset{\circ}{A}$) emission is critical for assessing the evolution of planetary atmospheres and the habitability of M dwarf systems.
Barman, Travis +6 more
core +2 more sources
Mass Production of 2021 KMTNet Microlensing Planets. III. Analysis of Three Giant Planets
The Astronomical Journal, 2022 We present the analysis of three more planets from the KMTNet 2021 microlensing season. KMT-2021-BLG-0119Lb is a ∼6 M _Jup planet orbiting an early M dwarf or a K dwarf, KMT-2021-BLG-0192Lb is a ∼2 M _Nep planet orbiting an M dwarf, and KMT-2021-BLG ...
In-Gu Shin +50 more
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Magnetic inflation and stellar mass. III. revised parameters for the component stars of NSVS 07394765 [PDF]
, 2019 We perform a new analysis of the M-dwarf–M-dwarf eclipsing binary system NSVS 07394765 in order to investigate the reported hyper-inflated radius of one of the component stars.
Han, Eunkyu +6 more
core +2 more sources
Metallicity measurements using atomic lines in M and K dwarf stars
, 2004 We report the first survey of chemical abundances in M and K dwarf stars using atomic absorption lines in high resolution spectra. We have measured Fe and Ti abundances in 35 M and K dwarf stars using equivalent widths measured from (lambda / Delta ...
Allard +32 more
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Magnetic Field Measurements of Low-mass Stars from High-resolution Near-infrared IGRINS Spectra
The Astronomical Journal, 2023 We present average magnetic field measurements derived from high-resolution near-infrared IGRINS spectra of a carefully selected sample of 28 M dwarfs. All 28 have reported magnetic field strengths in the literature.
Eunkyu Han +3 more
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Giant Exoplanets around M-dwarf Stars (GEMS)
, 2023 In this presentation, we describe the new Giant Exoplanets around M dwarf Stars (GEMS) survey initiated to to understand giant planets transiting around M dwarf stars. This survey will try to understand giant planet formation, by shedding light on big planets around small stars.
Kanodia, Shubham, GEMS Team
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