Results 141 to 150 of about 7,790 (232)
On the formation of single and binary helium-rich subdwarf O stars [PDF]
, 2010 Stephen Justham +2 more
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The OB-type subdwarf HD 149382 and the nature of the subdwarf B stars
The Astrophysical Journal, 1975 High-dispersion spectra and monochromatic continuum measures of the subdwarf OB star HD 149382 have been obtained and analyzed to yield the atmospheric parameters T)=40,000 K, log g=5.8. Helium is deficient by a factor 10 compared to Population I. Sulfur is the only element, other than hydrogen and helium, observed in the blue spectrum of this object ...
B. Baschek, J. Norris
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A search for pulsating blue stars in the vicinity of NGC 6791 using Kepler LC data
EPJ Web of Conferences, 2015 There are 18 known pulsating subdwarf B stars in the field of view of the Kepler spacecraft during phase one. The majority of them were observed in the short cadence mode and have been successfully investigated via asteroseismic methods.
Sowicka Paulina +2 more
doaj +1 more source
Model Spectra of Hot Subdwarfs for the Gaia Mission [PDF]
, 2008 L. Hindson +3 more
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Asteroseismic Constraints on the Models of Hot B Subdwarfs: Convective Helium-Burning Cores
EPJ Web of Conferences, 2017 Asteroseismology of non-radial pulsations in Hot B Subdwarfs (sdB stars) offers a unique view into the interior of core-helium-burning stars. Ground-based and space-borne high precision light curves allow for the analysis of pressure and gravity mode ...
Schindler Jan-Torge +2 more
doaj +1 more source
The empirical mass distribution of hot B subdwarfs: Implications for stellar evolution theory
EPJ Web of Conferences, 2013 Subdwarf B (sdB) stars are hot, compact, and evolved objects that form the very hot end of the horizontal branch, the so-called Extreme Horizontal Branch (EHB).
Green E.M. +4 more
doaj +1 more source
The first massive compact companion in a wide orbit around a hot subdwarf star [PDF]
, 2023 S. Geier +7 more
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Phases of Mass Transfer from Hot Subdwarfs to White Dwarf Companions [PDF]
, 2021 Evan B. Bauer, Thomas Kupfer
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Disentangling Composite Spectrum Hot Subdwarfs
, 2004 We give preliminary results from a spectroscopic study of composite spectrum hot subdwarfs (sd+late-type). We obtained spectra of a sample of hot subdwarfs selected from the "Catalogue of Spectroscopically Identified Hot Subdwarfs" on the basis of near-infrared photometry from the Two Micron All Sky Survey (2MASS). The sample consists of 20 photometric
Stark, M. A., Wade, Richard A.
openaire +2 more sources
HST Observations of M Subdwarfs
, 2000 Accepted for PASP, 10 pages including figures and ...
Gizis, John E., Reid, I. Neill
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