Results 11 to 20 of about 40,670 (264)

Asteroseismology of Close Binary Stars: Tides and Mass Transfer

open access: yesFrontiers in Astronomy and Space Sciences, 2021
The study of stellar oscillations allows us to infer the properties of stellar interiors. Meanwhile, fundamental parameters such as mass and radius can be obtained by studying stars in binary systems. The synergy between binarity and asteroseismology can
Zhao Guo
doaj   +1 more source

XMM-Newton X-ray study of early type stars in the Carina OB1 association [PDF]

open access: yes, 2007
<p><b>Aims:</b> X-ray properties of the stellar population in the Carina OB1 association are examined with special emphasis on early-type stars.
I. I. Antokhin   +14 more
core   +1 more source

Early-Type Stars [PDF]

open access: yesAstrophysics and Space Science, 1995
Away from the young disk, several classes of early type stars are found. They include (i) the old, metal-poor blue horizontal branch stars of the halo and the metal-poor tail of the thick disk; (ii) metal-rich young A stars in a rapidly rotating subsystem but with a much higher velocity dispersion than the A stars of the young disk, and (iii) a newly ...
openaire   +1 more source

Radiative Wind Acceleration in Early Type Stars [PDF]

open access: yesInternational Astronomical Union Colloquium, 1981
AbstractThe processes of radiative acceleration of stellar winds in OB stars by single and multiple photon scattering are considered. Single scattering can be the dominant accelerating process for stars later than B2 (Teff < 2 x 104 K) and can account for terminal velocities up to 500 – 1000 km s-1 . Multiple scattering of photons in the approximate
N. Panagia, F. Macchetto
openaire   +1 more source

A magnetic snapshot survey of F-type stars [PDF]

open access: yes, 2020
International audienceWe present a spectropolarimetric magnetic snapshot survey of 55 stars which includes 53 F-type stars ranging from spectral types F0 to F9 plus 2 chemically peculiar stars β CrB, and δ Cap.
Buysschaert, B.   +7 more
core   +1 more source

A revisit to agglomerates of early‐type Hipparcos stars [PDF]

open access: yesAstronomische Nachrichten, 2008
AbstractWe study the spatial structure and sub‐structure of regions rich in Hipparcos stars with blue BT – VT colours. These regions, which comprise large stellar complexes, OB associations, and young open clusters, are tracers of on‐going star formation in the Galaxy.
Caballero, J. A., Dinis, L.
openaire   +2 more sources

Revealing the Binarity of HD 36030—One of the Hottest Flare Stars

open access: yesGalaxies, 2023
The Kepler and TESS space missions significantly expanded our knowledge of what types of stars display flaring activity by recording a vast amount of super-flares from solar-like stars, as well as detecting flares from hotter stars of A-F spectral types.
Olga Maryeva   +2 more
doaj   +1 more source

STAR FORMATION BIMODALITY IN EARLY-TYPE GALAXIES [PDF]

open access: yesThe Astrophysical Journal, 2014
We compute the properties of a sample of 221 local early-type galaxies with a spectral energy distribution (SED) modeling software, CIGALEMC. Concentrating on the star forming activity and dust contents, we derive parameters such as the specific star formation rate, the dust luminosity, dust mass and temperature.
Amblard, A.   +5 more
openaire   +2 more sources

Early Type Stars [PDF]

open access: yesNature, 1967
The Early Type Stars By Anne B. Underhill. (Astrophysics and Space Science Library, Vol. 6.) Pp. xiii + 282. (Dordrecht: D. Reidel Publishing Company, 1966.) 52 D. florins.
openaire   +1 more source

Polarimetry of Southern Peculiar Early-Type Stars [PDF]

open access: yesAstronomy and Astrophysics Supplement Series, 1998
An important factor is the relation of HAEBE stars with other groups of peculiar early type stars, such as Be and B[e] stars, luminous blue variables (LBVs) etc. In many cases Polarimetric properties of HAEBE stars and B[e] (Be) stars are similar. We have carried out a Polarimetric study of peculiar early-type stars with the following aims: 1 ...
R. V. Yudin, A. Evans
openaire   +2 more sources

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