Results 21 to 30 of about 11,210,903 (298)

Probing the composition of sub-millisecond rotating compact stars by r-modes instability [PDF]

open access: yes, 2012
We investigate the implications of the r-modes instability on the composition of a compact star rotating at a sub-millisecond period. In particular, the only viable astrophysical scenario for such an object, wich might present inside the Low Mass X-ray ...
Giuseppe Pagliara   +3 more
core   +1 more source

The EBLM Project—From False Positives to Benchmark Stars and Circumbinary Exoplanets

open access: yesUniverse, 2023
The EBLM project aims to characterise very-low-mass stars that are companions to solar-type stars in eclipsing binaries. We describe the history and motivation for this project, the methodology we use to obtain the precise mass, radius, and effective ...
Pierre F. L. Maxted   +2 more
doaj   +1 more source

Modelling and observations of molecules in discs around young stars [PDF]

open access: yes, 2013
This thesis contains a study of molecules within circumstellar discs around young stars. Firstly, the chemistry of a disc around a young, Class 0 protostar is modelled.
Ilee, John David
core   +6 more sources

Low-mass relics of early star formation [PDF]

open access: yesNature, 2003
Offprint of Nature 422 (2003), 869-871 (issue 24 April 2003)
SCHNEIDER R.   +4 more
openaire   +3 more sources

Three Statistically Validated K2 Transiting Warm Jupiter Exoplanets Confirmed as Low-mass Stars [PDF]

open access: yes, 2017
We have identified three K2 transiting star-planet systems, K2-51 (EPIC 202900527), K2-67 (EPIC 206155547), and K2-76 (EPIC 206432863), as stellar binaries with low-mass stellar secondaries.
Bento, Joao   +27 more
core   +1 more source

A study of U Aquarii and the nucleosynthesis of neutrons and S-process elements in evolved stars of low mass [PDF]

open access: yes, 2014
The origin of the extreme hydrogen deficiency observed in the R Coronae Borealis (RCrB) stars remains poorly understood. A likely mechanism for producing this deficiency is one whereby the original hydrogen envelope of the star is engulfed and ...
Malaney, Robert A.
core   +2 more sources

Dynamical Masses of Low-mass Stars in the Taurus and Ophiuchus Star-forming Regions [PDF]

open access: yesThe Astrophysical Journal, 2017
Abstract We report new dynamical masses for five pre-main sequence (PMS) stars in the L1495 region of the Taurus star-forming region (SFR) and six in the L1688 region of the Ophiuchus SFR. Since these regions have VLBA parallaxes, these are absolute measurements of the stars’ masses and are independent of their effective temperatures and
Simon, M.   +10 more
openaire   +3 more sources

Low-Mass Stars. II. The Core Mass--Luminosity Relations for Low-Mass Stars

open access: yesThe Astrophysical Journal, 1988
Etude de la relation masse-luminosite dans la litterature pour des etoiles de masse intermediaire, et extension a des etoiles de faible masse (0,8 M ○. -3 M ○. )
Arnold I. Boothroyd, I.-Juliana Sackmann
openaire   +1 more source

PRE-MAIN SEQUENCE EVOLUTIONS OF SOLAR ABUNDANCE LOW MASS STARS [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2007
We present the Pre-Main Sequence (PMS) evolutionary tracks of stars with 0.065~5.0M_⨀. The models were evolved from the PMS stellar birthline to the onset of hydrogen burning in the core.
Youn Kil Jung, Y. -C. Kim
doaj   +1 more source

The EBLM Project V. Physical properties of ten fully convective, very-low-mass stars [PDF]

open access: yes, 2019
Measurements of the physical properties of stars at the lower end of the main sequence are scarce. In this context we report masses, radii and surface gravities of ten very-low-mass stars in eclipsing binary systems, with orbital periods of the order of ...
Smalley, Hellier, Maxted
core   +1 more source

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