Results 31 to 40 of about 1,262,170 (343)
Coronae of Zero/Low-metal, Low-mass Stars [PDF]
The Astrophysical Journal, 2019 Abstract Recent theoretical studies suggest the existence of low-mass, zero-metal stars in the current universe. To study the basic properties of the atmosphere of low-mass first stars, we perform one-dimensional magnetohydrodynamical simulations for the heating of coronal loops on low-mass stars with various metallicities.
Haruka Washinoue, Takeru K. Suzuki
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A New Look at an Old Cluster: The Membership, Rotation, and Magnetic Activity of Low-mass Stars in the 1.3 Gyr Old Open Cluster NGC 752 [PDF]
Astrophysical Journal, 2018 The nearby open cluster NGC 752 presents a rare opportunity to study stellar properties at ages >1 Gyr. However, constructing a membership catalog for it is challenging; most surveys have been limited to identifying its giants and dwarf members earlier ...
M. Agueros +10 more
semanticscholar +1 more source
Low-mass relics of early star formation [PDF]
Nature, 2003 Offprint of Nature 422 (2003), 869-871 (issue 24 April 2003)
SCHNEIDER R. +4 more
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Diverse outcomes of planet formation and composition around low-mass stars and brown dwarfs [PDF]
Monthly notices of the Royal Astronomical Society, 2019 The detection of Earth-size exoplanets around low-mass stars –in stars such as Proxima Centauri and TRAPPIST-1– provide an exceptional chance to improve our understanding of the formation of planets around M stars and brown dwarfs.
Yamila Miguel +4 more
semanticscholar +1 more source
Improving PARSEC models for very low mass stars [PDF]
, 2014 Many stellar models present difficulties in reproducing basic observational relations of very low mass stars (VLMS), including the mass--radius relation and the optical colour--magnitudes of cool dwarfs. Here, we improve PARSEC models on these points. We
Yang Chen +5 more
semanticscholar +1 more source
Multiepoch Ultraviolet HST Observations of Accreting Low-mass Stars [PDF]
Astrophysical Journal, 2019 Variability is a defining characteristic of young low-mass stars that are still accreting material from their primordial protoplanetary disk. Here we present the largest Hubble Space Telescope (HST) variability study of classical T Tauri stars (CTTS) to ...
C. Robinson, C. Espaillat
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Effective temperature and the light curve solution of contact binary systems [PDF]
Serbian Astronomical Journal, 2023 With an increasing number of contact binary discoveries and the recognition that luminous red novae are the result of contact binary merger events, there has been a significant increase in the number of light curve solutions appearing in the ...
Wadhwa S. +3 more
doaj +1 more source
Rotation of Low-mass Stars in Upper Scorpius and ρ Ophiuchus with K2 [PDF]
, 2018 We present an analysis of K2 light curves (LCs) for candidate members of the young Upper Sco (USco) association (∼8 Myr) and the neighboring ρ Oph embedded cluster (∼1 Myr). We establish ∼1300 stars as probable members, ∼80% of which are periodic.
L. Rebull +5 more
semanticscholar +1 more source
Chemical mixing in low mass stars [PDF]
Astronomy & Astrophysics, 2019 Context. When modelling stars with masses higher than 1.2 M⊙ with no observed chemical peculiarity, atomic diffusion is often neglected because, on its own, it causes unrealistic surface abundances compared with those observed. The reality is that atomic
M. Deal +4 more
semanticscholar +1 more source
Low-Mass Versus High-Mass Star Formation [PDF]
Symposium - International Astronomical Union, 1997 Structures like the clumps identified in the CO maps of the Rosette Molecular Cloud and the dense cores such as those in B5, a cluster of cores and young low-mass stars, are key to considerations of star formation. Whether star formation is a self-inducing process or one that causes itself to turn off depends greatly on whether the responses of the ...
T. W. Hartquist, J. E. Dyson
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