Results 191 to 200 of about 3,913,690 (210)

AGB stars and red supergiants in the LMC as seen with DENIS

Astrophysics and Space Science, 1994
The goal of this short communication is to evaluate the usefulness of DENIS for the study of stars on the Asymptotic Giant Branch (AGB) and red supergiants (RSG) in the Large Magellanic Cloud (LMC). We try to answer two fundamental questions: (i) Can DENIS detect all the AGB stars and RSG in the LMC ?
C. Loup, M. A. T. Groenewegen
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Red supergiant stars in the Large Magellanic Cloud [PDF]

Astronomy and Astrophysics, 2018
The characteristics of infrared properties and mid-infrared (MIR) variability of red supergiant (RSG) stars in the Large Magellanic Cloud (LMC) are analyzed based on 12 bands of near-infrared (NIR) to MIR co-added data from 2MASS, Spitzer and WISE, and ∼6.6 yr of MIR time-series data collected by the ALLWISE and NEOWISE-R projects.
Ming Yang, Panagiotis Gavras, Yi Ren
exaly   +3 more sources

Atmospheres of Red Supergiant Stars. II. The M 2 Supergiant Star Betelgeuse

Publications of the Astronomical Society of Japan, 1976
Abstract The possibility of applying model atmospheres for the interpretation of observed spectral energy distributions is examined in the case of Betelgeuse as an example. The effect of atomic line absorptions is taken into account by an empirical line-blocking analysis, while the line-blanketing effect due to molecular absorption is ...
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Hot and Cool: Characterising the Companions of Red Supergiant Stars in Binary Systems

Bulletin de la Société Royale des Sciences de Liège
In this article we study the nature of the recently identified populations of hot companions to red supergiant stars (RSGs). To this end, we compile the literature on the most well characterised systems with the aim of better understanding the hot companions identified with ultra-violet photometry and confirmed with Hubble Space Telescope spectra in ...
Lee Patrick
exaly   +3 more sources

Remarks on red giant and supergiant stars

2008
The preceeding review paper by Hollis Johnson and these remarks summarize portions of a half-day meeting held immediately prior to the Fifth Cool Stars Workshop. This special session was held in order to allow the astronomers interested in problems related to the atmospheres and evolution of red giant and supergiant stars to share ideas on selected ...
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Global radiation-hydrodynamics simulations of red supergiant stars

EAS Publications Series, 2013
The small-scale surface granulation on cool main-sequence stars and white dwarfs influences the overall appearance of these objects only weakly. And it is only indirectly observable by analyzing e.g. line-shapes or temporal fluctuations – except for the Sun.
B. Freytag, A. Chiavassa
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Red supergiant stars in the Local Group and beyond

2017
Red Supergiant (RSG) stars are the most luminous stars in the infrared sky. Their intrinsic luminosities combined with the low dust extinction observed in this regime makes these objects very attractive to study in the near-infrared (IR). In addition, RSGs are necessarily young objects, as they are tracers of recent star formation in extra-galactic ...
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Common envelopes in massive stars: towards the role of radiation pressure and recombination energy in ejecting red supergiant envelopes

Monthly Notices of the Royal Astronomical Society, 2022
Orsola de Marco, Daniel James Price, Ilya Mandel   +2 more
exaly  

The Infrared View on Red Supergiant Stars

2006
Eric Josselin, Bertrand Plez
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Atmospheric dynamics of red supergiant stars and applications to Interferometry

2008
info:eu-repo/semantics ...
Freytag, B., Steffen, M., Wedemeyer-Böhm, S., Ludwig, Hans Günter, Leenaarts, J., Schaffenberger, W., Allard, F., Chiavassa, Andréa, Höfner, S., Kamp, I., Steiner, O.   +10 more
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