Results 11 to 20 of about 4,228,954 (215)

VLT/PIONIER imaging of red supergiant stars

, 2018
PIONIER (Precision Integrated-Optics Near-infrared Imaging ExpeRiment) was the first 4-telescope instrument installed at the Very Large Telescope Interferometer (VLTI) in 2010.
Montargès, Miguel (5124386), Montargès, Miguel   +1 more
core   +3 more sources

Properties of luminous red supergiant stars in the Magellanic Clouds [PDF]

Astronomy & Astrophysics, 2022
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 ...
K. Boutsia, A.Z. Bonanos, G. Maravelias, Britavskiy, Mikola, de Wit, S., N. Britavskiy, Maravelias, G., M. Yang, Yang, M., Bonanos, A. Z., Bonanos, A.Z., Tramper, F., Boutsia, K., E. Zapartas, S. de Wit, Zapartas, E., Britavskiy, N., F. Tramper   +17 more
core   +6 more sources

The Convection of Close Red Supergiant Stars Observed With Near-Infrared Interferometry [PDF]

EAS Publications Series, 2015
International audienceOur team has obtained observations of the photosphere of the two closest red supergiant stars Betelgeuse (α Ori) and Antares (α Sco) using near infrared interferometry.
Montargès, M., P. Kervella, M. Montargès, Chiavassa, A., G. Perrin, A. Chiavassa, Kervella, P., Perrin, G., Aurière, M., M. Aurière   +9 more
core   +4 more sources

Betelgeuse, the Prototypical Red Supergiant

Galaxies
The behavior of the bright red supergiant, Betelgeuse, is described with results principally from the past 6 years. The review includes imaging, photometry, and spectroscopy to record the Great Dimming of 2019–2020.
Andrea K. Dupree, Miguel Montargès
doaj   +2 more sources

Detection of a Red Supergiant Progenitor Star of a Type II-Plateau Supernova

Science, 2004
We present the discovery of a red supergiant star that exploded as supernova 2003gd in the nearby spiral galaxy M74. The Hubble Space Telescope (HST) and the Gemini Telescope imaged this galaxy 6 to 9 months before the supernova explosion, and subsequent
Smartt, Stephen; id_orcid, Maund, J.R., Benn, C.R., Hendry, M.A., Mattila, S., Gilmore, G.F., Tout, C.A.   +6 more
core   +5 more sources

Atmosphere tomography of red supergiant stars

EAS Publications Series, 2013
3-D simulations suggest that the atmospheres of red super-giants are subject to large-amplitude convective motions, which are suspected to generate supersonic motions and shocks. We perform tomography of supergiant-star atmospheres, on temporal series of
A. Chiavassa, Plez, B., B. Plez, Van Eck, Sophie, S. Van Eck, Jorissen, Alain, S. Lion, A. Jorissen, Lion, S., Chiavassa, Andréa   +9 more
core   +3 more sources

Stellar Evolution Through the Red Supergiant Phase

Galaxies
Massive stars less massive than ∼30 M⊙ evolve into a red supergiant after the main sequence. Given a standard IMF, this means about 80% of all single massive stars will experience this phase.
Sylvia Ekström, Cyril Georgy
doaj   +2 more sources

A Bias-corrected Luminosity Function for Red Supergiant Supernova Progenitor Stars

The Astrophysical Journal Letters
The apparent tension between the luminosity functions of red supergiant (RSG) stars and of RSG progenitors of Type II supernovae (SNe) is often referred to as the RSG problem and it motivated some to suggest that many RSGs end their life without an SN ...
Nora L. Strotjohann, Eran O. Ofek, Avishay Gal-Yam   +2 more
doaj   +3 more sources

Red supergiants in star-forming galaxies [PDF]

Symposium - International Astronomical Union, 1999
We present some results on the burst properties in star forming galaxies, using near infrared stellar features typical of red supergiants and Brackett nebular lines which trace the presence of luminous H II regions.
Livia Origlia, Ernesto Oliva
openaire   +1 more source

A Catalog of Galactic Multiple Systems with a Red Supergiant and a B Star [PDF]

Research Notes of the AAS, 2020
Table with 108 objects ...
M. Pantaleoni González, J. Maíz Apellániz, R. H. Barbá, I. Negueruela   +3 more
openaire   +4 more sources