Results 11 to 20 of about 657 (262)
Hurricane Genesis is Favorable on Terrestrial Exoplanets Orbiting Late-type M Dwarf Stars [PDF]
The Astrophysical Journal, 2020 Abstract Hurricanes are one of the most extreme storm systems that occur on Earth, characterized by strong rainfall and fast winds. The terrestrial exoplanets that will be characterized with future infrared space telescopes orbit M dwarf stars.
Thaddeus D. Komacek +2 more
openaire +2 more sources
Late-type dwarf galaxies in the Virgo cluster -- II. Star formation properties [PDF]
Monthly Notices of the Royal Astronomical Society, 1998 We study star-formation-inducing mechanisms in galaxies through multi- wavelength measurements of a sample of dwarf galaxies in the Virgo cluster described in paper I. Our main goal is to test how star formation inducing mechanisms depend on several parameters of the galaxies, such as morphological type and hydrogen content.
Almoznino, Elchanan, Brosch, Noah
openaire +2 more sources
The Astrophysical Journal, 2023 About 70%–80% of stars in our solar and Galactic neighborhood are M dwarfs. They span a range of low masses and temperatures relative to solar-type stars, facilitating molecule formation throughout their atmospheres.
Aishwarya R. Iyer +4 more
doaj +1 more source
The Astronomical Journal, 2023 Variability in the far-ultraviolet (FUV) emission produced by stellar activity affects photochemistry and heating in orbiting planetary atmospheres. We present a comprehensive analysis of the FUV variability of GJ 436, a field-age M2.5V star ( P _rot ...
R. O. Parke Loyd +8 more
doaj +1 more source
X-Ray Coronae from Single Late-Type Dwarf Stars [PDF]
Symposium - International Astronomical Union, 1998 Study of X-ray coronae from late-type stars with moderate resolution X-ray spectroscopy with ASCA, has led to the characterization of temperatures and measurements of elemental abundances in their coronae. Several RS CVn and Algol-type binary systems, and single late-type stars have been observed.
K.P. Singh, S.A. Drake, N.E. White
openaire +1 more source
On the Origins of Extreme Velocity Stars as Revealed by Large-scale Galactic Surveys
The Astronomical Journal, 2023 We assemble a large sample of 12,784 high-velocity stars with total velocity V _GSR ≥ 300 km s ^−1 , selected from RAVE DR5, SDSS DR12, LAMOST DR8, APOGEE DR16, GALAH DR2, and Gaia EDR3.
Qing-Zheng Li +5 more
doaj +1 more source
Radio Detection of Late-Type (G--K) Dwarf Stars in the Pleiades
The Astrophysical Journal, 1995 We report deep 3.6 cm radio observations of a small sample of the most rapidly rotating G-K dwarf stars in the Pleiades. Of the four ultrafast rotators (UFRs) observed, three were detected. The G8 dwarf H II 1136, the fastest rotating G dwarf known in the Pleiades, displayed a flare that rose to a peak flux density of ∼1 mJy (peak radio luminosity of ...
Lim, J, White, SM
openaire +2 more sources
No Evidence for More Earth-sized Planets in the Habitable Zone of Kepler's M versus FGK Stars
The Astronomical Journal, 2023 Reliable detections of Earth-sized planets in the habitable zone remain elusive in the Kepler sample, even for M dwarfs. The Kepler sample was once thought to contain a considerable number of M-dwarf stars ( T _eff < 4000 K), which hosted enough Earth ...
Galen J. Bergsten +5 more
doaj +1 more source
The Astronomical Journal, 2023 Earth-sized exoplanets that transit nearby, late-spectral-type red dwarfs will be prime targets for atmospheric characterization in the coming decade.
Jeremy Dietrich +32 more
doaj +1 more source
Microwave emission from the coronae of late-type dwarf stars
The Astrophysical Journal, 1983 VLA microwave observations of 14 late-type dwarf and subgiant stars and binary systems are examined. In this extensive set of observations, four sources at 6 cm (Chi-1 Ori, UV Cet, YY Gem, and Wolf 630AB) were detected and low upper limits for the remaining stars were found.
J. L. Linsky, D. E. Gary
openaire +1 more source