Results 11 to 20 of about 37,244 (118)

Low-mass companions to nine stars

open access: yesActa Astronomica
We present an independent spectroscopic and radial velocity analysis for nine stars from the Pennsylvania-Toruń Planet Search. For BD+24 4697, we present an updated true companion's mass (0.16$\pm$0.02 \, M$_{\odot}$), as well as evidence of stellar activity.
Niedzielski, A.   +7 more
openaire   +2 more sources

FEEDBACK EFFECTS ON LOW-MASS STAR FORMATION [PDF]

open access: yesThe Astrophysical Journal, 2012
20 pages, 20 ...
Hansen, Charles E.   +3 more
openaire   +2 more sources

Flaring latitudes in ensembles of low-mass stars

open access: yesMonthly Notices of the Royal Astronomical Society, 2023
ABSTRACT The distribution of small-scale magnetic fields in stellar photospheres is an important ingredient in our understanding of the magnetism of low-mass stars. Their spatial distribution connects the field generated in the stellar interior with the outer corona and the large scale field, and thereby affects the space weather of ...
Ekaterina Ilin   +4 more
openaire   +2 more sources

A Case Study of Low‐Mass Star Formation [PDF]

open access: yesThe Astrophysical Journal Supplement Series, 2008
This article synthesizes observational data from an extensive program aimed toward a comprehensive understanding of star formation in a low-mass star-forming molecular cloud. New observations and published data spanning from the centimeter wave band to the near infrared reveal the high and low density molecular gas, dust, and pre-main sequence stars in
Swift, J., Welch, Wm. J.
openaire   +2 more sources

Induced formation of primordial low-mass stars [PDF]

open access: yesNew Astronomy, 2004
We show that the explosion of the first supernovae can trigger low-mass star formation via gravitational fragmentation of the supernova-driven gas shell. If the shell mass does not exceed the host galaxy gas mass, all explosions with energies E_SN > 10^{51} erg can lead to shell fragmentation.
Salvaterra, R.   +2 more
openaire   +2 more sources

Low-mass stars in the Hyades [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1993
We present VRI photometry for a proper-motion-selected sample of candidate Hyades members, complete to V=19 over 110 deg 2 .
openaire   +1 more source

Rotating Models for Evolved Low-Mass Stars [PDF]

open access: yesSymposium - International Astronomical Union, 2004
Low mass stars (< 2-2.5 M⊙) exhibit, at all the stages of their evolution, signatures of processes that require challenging modeling beyond the standard stellar theory. In this paper we focus on their peculiarities while they climb the red giant branch (RGB). We first compare the classical predictions for abundance variations due to the first dredge-
Charbonnel, Corinne, Palacios, Ana
openaire   +2 more sources

THE FIRST STARS: A LOW-MASS FORMATION MODE [PDF]

open access: yesThe Astrophysical Journal, 2014
19 pages, 17 figures, to apper in ...
Stacy, Athena, Bromm, Volker
openaire   +3 more sources

The birthline for low-mass stars

open access: yesThe Astrophysical Journal, 1983
Using the results of protostar theory, the locus in the Hertzsprung-Russell diagram is found where pre-main-sequence stars of subsolar mass should begin their quasi-static contraction phase and first appear as visible objects. This 'birthline' is in striking agreement with observations of T Tauri stars, providing a strong confirmation of the fact that ...
openaire   +1 more source

WHERE ARE THE LOW-MASS POPULATION III STARS? [PDF]

open access: yesThe Astrophysical Journal, 2016
ABSTRACT We study the number and the distribution of low-mass Population III (Pop III) stars in the Milky Way. In our numerical model, hierarchical formation of dark matter minihalos and Milky-Way-sized halos are followed by a high-resolution cosmological simulation.
Tomoaki Ishiyama   +5 more
openaire   +2 more sources

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