Results 181 to 190 of about 3,913,690 (210)
The photosphere of red supergiant stars as seen by optical interferometry
, 2017 Montarges, Miguel +6 more
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Properties of luminous red supergiant stars in the Magellanic Clouds [PDF]
Astronomy and Astrophysics, 2023 Context. There is evidence that some red supergiants (RSGs) experience short-lived phases of extreme mass loss, producing copious amounts of dust. These episodic outburst phases help strip the hydrogen envelope from evolved massive stars, drastically affecting their evolution.
Frank Tramper +2 more
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Atmospheric dynamics and the mass loss process in red supergiant stars [PDF]
Astronomy and Astrophysics, 2007 Red supergiant stars represent a key phase in the evolution of massive stars. Recent radiative hydrodynamic simulations suggest that their atmospheres may be the location of large-scale convective motions. As supergiant convection is expected to generate supersonic motions and shocks, we seek constraints on these atmospheric motions and their possible ...
Bertrand Plez
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Measuring surface magnetic fields of red supergiant stars [PDF]
Astronomy and Astrophysics, 2017 Context.Red supergiant (RSG) stars are very massive cool evolved stars. Recently, a weak magnetic field was measured at the surface ofαOri and this is so far the only M-type supergiant for which a direct detection of a surface magnetic field has been reported.Aims.By extending the search for surface magnetic field in a sample of late-type supergiants ...
Julien Morin, M Aurière
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Vigorous atmospheric motion in the red supergiant star Antares [PDF]
Nature, 2017 Red supergiant stars represent a late stage of the evolution of stars more massive than about nine solar masses, in which they develop complex, multi-component atmospheres. Bright spots have been detected in the atmosphere of red supergiants using interferometric imaging. Above the photosphere of a red supergiant, the molecular outer atmosphere extends
Gerd Weigelt, K -H Hofmann, K Ohnaka
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Near-infrared spectroscopy of candidate red supergiant stars in clusters
Astronomy and Astrophysics, 2014 Context. Clear identifications of Galactic young stellar clusters farther than a few kpc from the Sun are rare, despite the large number of candidate clusters. Aims.
Karl Menten +2 more
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The dust condensation sequence in red supergiant stars
Astronomy and Astrophysics, 2009 Context: Red supergiant (RSG) stars exhibit significant mass loss by means of a slow, dense wind. They are often considered to be the more massive counterparts of Asymptotic Giant Branch (AGB) stars.
Leen Decin, S Hony, T Verhoelst
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Radiative hydrodynamics simulations of red supergiant stars [PDF]
Astronomy and Astrophysics, 2009 16 pages with 18 Figures.
Bertrand Plez, Andrea Chiavassa
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The Temperatures of Red Supergiants: how cool are the coolest massive stars?
EAS Publications Series, 2013We have re-appraised the temperatures of Red Supergiants (RSGs) in the Magellanic Clouds, by studying their spectral energy distributions (SEDs) from 400-2500 nm using VLT+XSHOOTER, in conjunction with MARCS model atmospheres. We determine temperatures using 3 methods: from model fits to the TiO bands in the optical; from model fits to the SED using ...
Davies, B. +8 more
openaire +3 more sources
Interacting supernovae from photoionization-confined shells around red supergiant stars
Nature, 2014 Betelgeuse, a nearby red supergiant, is a runaway star with a powerful stellar wind that drives a bow shock into its surroundings. This picture has been challenged by the discovery of a dense and almost static shell that is three times closer to the star
Rubina Kotak +2 more
exaly +2 more sources