Results 1 to 10 of about 11,425 (209)

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.
Hofmann, K. -H., Ohnaka, K., Weigelt, G.
core   +6 more sources

Atmospheric dynamics and the mass loss process in red supergiant stars [PDF]

Astronomy & 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
Alvarez, Asplund, B. Plez, Baranne, Bessell, Blackman, Burki, Carpenter, Danchi, Dorch, E. Josselin, Freytag, Freytag, Gilliland, Gray, Gustafsson, Harper, Hinkle, Humphreys, Josselin, Kulander, Langer, Levesque, Massey, Mathias, Morgan, Pijpers, Plez, Plez, Queloz, Salasnich, Schlegel, Schwarzschild, Smith, Stein, Stothers, Vlemmings   +36 more
core   +7 more sources

Atmospheric dynamics of red supergiant stars and Interferometry [PDF]

EAS Publications Series, 2007
We developed a 3D pure LTE radiative transfer code to derive observables expected for RSGs, with emphasis on small scale structures, from radiative-hydrodynamic (RHD) simulations of red supergiant stars (RSGs) carried out with CO5BOLD (Freytag et al ...
Chiavassa, A.
core   +2 more sources

Luminous and Variable Stars in M31 and M33. III. The Yellow and Red Supergiants and Post-Red Supergiant Evolution [PDF]

The Astrophysical Journal, 2016
Recent supernova and transient surveys have revealed an increasing number of non-terminal stellar eruptions. Though the progenitor class of these eruptions includes the most luminous stars, little is known of the pre-supernova mechanics of massive stars ...
Gordon, Michael S., Humphreys, Roberta M., Jones, Terry J.   +2 more
core   +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

Atmospheric dynamics of red supergiant stars and applications to Interferometry

, 2007
We have written a 3D radiative transfer code that computes emerging spectra and intensity maps. We derive from radiative hydrodynamic (RHD) simulations of RSG stars carried out with CO5BOLD (Freytag et al.
Chiavassa, A., Freytag, B., Josselin, E., Plez, B.   +3 more
core   +2 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

The red supergiants & Wolf-Rayet stars of NGC 604 [PDF]

Monthly Notices of the Royal Astronomical Society, 2010
We study the post-main sequence stars in NGC 604, the most luminous HII region in M33. Previously, a number of Wolf-Rayet (WR) stars and one red supergiant (RSG) have been discovered. Based on broadband photometry of the region, we present evidence that is consistent with the presence of this RSG and with three more RSG candidates.
Eldridge, John J., Relano, Monica
openaire   +3 more sources

Resolved photometry of extragalactic young massive star clusters [PDF]

, 2011
We present colour-magnitude diagrams (CMDs) for a sample of seven young massive clusters in the galaxies NGC 1313, NGC 1569, NGC 1705, NGC 5236 and NGC 7793. The clusters have ages in the range 5-50 million years and masses of 10^5 -10^6 Msun.
A. Seth, Anders, Barmina, Bastian, Bekki, Bertelli, Bono, Bresolin, Brott, Brott, Carignan, Cignoni, Claeys, Conroy, Dalcanton, Davies, Dohm-Palmer, Dohm-Palmer, D’Antona, Edmunds, Efremov, Eggenberger, Eldridge, Eldridge, Eldridge, Elson, Fischer, Fischer, Fouesneau, Gallart, Girardi, Girardi, Girardi, Grevesse, Grocholski, Hennekemper, Hillebrandt, Hirschi, Israel, J. Brodie, J. J. Eldridge, Kiminki, Kobulnicky, Kraft, Kroupa, L. J. Smith, Langer, Larsen, Larsen, Larsen, Lee, Lejeune, Lyubimkov, Mackey, Maeder, Maeder, Maraston, Mason, Matraka, Maund, Milone, Mora, Méndez, N. Bastian, N. Langer, Norris, Origlia, O’Connell, Palmieri, Penny, Perina, Pflamm-Altenburg, Pinsonneault, Piotto, Pols, Renzini, Ritossa, S. E. de Mink, S. S. Larsen, Salaris, Salasnich, Sana, Sandage, Sansom, Schlegel, Silva-Villa, Silva-Villa, Stetson, Taam, Thim, Tosi, Vazquez, Vink, Vinkó, Walborn, Walsh, Westmoquette, Woosley, Yu. N. Efremov   +98 more
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IRC −10414: a bow-shock-producing red supergiant star★ [PDF]

Monthly Notices of the Royal Astronomical Society, 2013
Most runaway OB stars, like the majority of massive stars residing in their parent clusters, go through the red supergiant (RSG) phase during their lifetimes. Nonetheless, although many dozens of massive runaways were found to be associated with bow shocks, only two RSG bow-shock-producing stars, Betelgeuse and Cep, are known to date.
Gvaramadze, V. V., Menten, K. M., Kniazev, A. Y., Langer, N., Mackey, J., Kraus, A., Meyer, D. M. -A., Kaminski, T.   +7 more
openaire   +2 more sources