Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Ines Brott"'
Autor:
Jorick S. Vink, Norbert Langer, D. J. Lennon, María Ángel García, Ines Brott, William D. Taylor, Paul A. Crowther, Hugues Sana, Götz Gräfener, J. Maíz Apellániz, Chris Evans, Joachim Puls, A. Herrero, Francisco Najarro, A. de Koter, Norberto Castro, O.H. Ramírez-Agudelo, Nolan R. Walborn, Fabian Schneider, S. E. de Mink, N. J. Grin, Sergio Simón-Díaz, G. Holgado, C. Sabín-Sanjulián
Publikováno v:
Astronomy & Astrophysics, 601:A79. EDP Sciences
The VLT-FLAMES Tarantula Survey has observed hundreds of O-type stars in the 30 Doradus region of the Large Magellanic Cloud (LMC). We study the properties of 105 apparently single O-type dwarfs. To determine stellar and wind parameters, we used the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29a7167412a9d065e2bd40bcbd8d4ffa
Autor:
Hugues Sana, Fabian Schneider, Paul A. Crowther, N. J. Grin, Nevena Markova, G. Gräfener, Norbert Langer, W. D. Taylor, Philip Dufton, O.H. Ramírez-Agudelo, J. Th. van Loon, D. J. Lennon, A. de Koter, S. E. de Mink, Ines Brott, Jorick S. Vink, Frank Tramper, Chris Evans, Francisco Najarro, Nolan R. Walborn, Joachim Puls, A. Herrero
Publikováno v:
NASA Astrophysics Data System
Astronomy & Astrophysics, 600:A82. EDP Sciences
Astronomy & Astrophysics, 600:A82. EDP Sciences
© ESO, 2017. Context. Theoretically, rotation-induced chemical mixing in massive stars has far reaching evolutionary consequences, affecting the sequence of morphological phases, lifetimes, nucleosynthesis, and supernova characteristics. Aims. Using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::837601ed470166ac6a794ea7f3308c1d
http://arxiv.org/abs/1609.00197
http://arxiv.org/abs/1609.00197
Autor:
A. de Koter, Götz Gräfener, Jacco Vink, A. Herrero, Alceste Z. Bonanos, Nolan R. Walborn, D. J. Lennon, Hugues Sana, J. Puls, S. E. de Mink, K. A. Bostroem, Paul A. Crowther, I. D. Howarth, J. Maíz Apellániz, Chris Evans, Norbert Langer, C. Angus, Ines Brott, Fabian Schneider, Saida M. Caballero-Nieves
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 458(1), 624-659. Oxford University Press
Monthly Notices of the Royal Astronomical Society, 458(1), 624-659. Oxford University Press
We introduce a HST/STIS stellar census of R136a, the central ionizing star cluster of 30 Doradus. We present low resolution far-ultraviolet STIS/MAMA spectroscopy of R136 using 17 contiguous 52x0.2 arcsec slits which together provide complete coverag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e7c1ca0800bc210d320616819d81b8b6
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 423:1221-1233
Rotation has a number of important effects on the evolution of stars. Apart from structural changes because of the centrifugal force, turbulent mixing and meridional circulation caused by rotation can dramatically affect a star’s chemical evolution
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::807cd791f410d647c009cc7c5d2cf653
https://doi.org/10.1111/j.1365-2966.2012.20952.x
https://doi.org/10.1111/j.1365-2966.2012.20952.x
Autor:
Rosanna Sordo, Antonella Vallenari, Rosaria Tantalo, France Allard, Ronny Blomme, Jean-Claud Bouret, Ines Brott, Yves Fremat, Christophe Martayan, Yassine Damerdji, Bengt Edvardsson, Eric Josselin, Bertrand Plez, Oleg Kochukhov, Mary Kontizas, Ulisse Munari, Tenay Saguner, Jean Zorec, Andreas Schweitzer, Paraskevi Tsalmantza
Publikováno v:
Astrophysics and Space Science. 328:331-335
ESA's Gaia mission will collect low resolution spectroscopy in the optical range for ∼10 9 objects. Com- plete and up-to-date libraries of synthetic stellar spectra are needed to built algorithms aimed to automatically derive the classification and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e19e2704699ab0685b454a21ce6585b1
https://doi.org/10.1007/s10509-010-0272-7
https://doi.org/10.1007/s10509-010-0272-7
Autor:
A. Voegler, Norbert Langer, Matteo Cantiello, Ines Brott, Sung-Chul Yoon, Jorick S. Vink, D. J. Lennon, A. de Koter, Steven N. Shore
Publikováno v:
Astronomy & Astrophysics, 499(1), 279-290. EDP Sciences
We study the convection zones in the outer envelope of hot massive stars which are caused by opacity peaks associated with iron and helium ionization. We determine the occurrence and properties of these convection zones as function of the stellar par
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8717845b916dc2ac2dc817757ba503af
https://doi.org/10.1051/0004-6361/200911643
https://doi.org/10.1051/0004-6361/200911643
Publikováno v:
Astronomy & Astrophysics. 497:243-253
Models of rotating single stars can successfully account for a wide variety of observed stellar phenomena, such as the surface enhancements of N and He. However, recent observations have questioned the idea that rotational mixing is the main process
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fca14a12f4af7c8551f99865dc8913e4
https://doi.org/10.1051/0004-6361/200811439
https://doi.org/10.1051/0004-6361/200811439
Autor:
Philip Dufton, Ines Brott, Carrie Trundle, Chris Evans, A. de Koter, Stephen Smartt, Robert Ryans, Ian Hunter, D. J. Lennon, Norbert Langer
Publikováno v:
Astrophysical Journal Letters, 676(1), L29-L32. IOP Publishing Ltd.
Rotation has become an important element in evolutionary models of massive stars, specifically via the prediction of rotational mixing. Here, we study a sample of stars, including rapid rotators, to constrain such models and use nitrogen enrichments
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::04930e5821dbc253c9fc0a9c446ec78e
https://doi.org/10.1086/587436
https://doi.org/10.1086/587436
Autor:
Alex de Koter, Ines Brott, Robert G. Izzard, Fabian Schneider, Norbert Langer, Herbert H. B. Lau
Publikováno v:
Astronomy & Astrophysics, 570. EDP Sciences
Powerful telescopes equipped with multi-fibre or integral field spectrographs combined with detailed models of stellar atmospheres and automated fitting techniques allow for the analysis of large number of stars. These datasets contain a wealth of in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::141493945d248de5dda975aaf4e06680
https://hdl.handle.net/11245/1.439851
https://hdl.handle.net/11245/1.439851
Autor:
Nolan R. Walborn, Sergio Simón-Díaz, Chris Evans, C. Sabín-Sanjulián, Jorick S. Vink, Francisco Najarro, William D. Taylor, Ines Brott, J. Maíz Apellániz, O.H. Ramírez-Agudelo, Artemio Herrero, A. de Koter, Hugues Sana, Miriam Garcia, Nevena Markova, Joachim Puls
Publikováno v:
Astronomy & Astrophysics, 564. EDP Sciences
Context. O Vz stars, a subclass of O-type dwarfs characterized by having He ii λ4686 stronger in absorption than any other helium line in their blue-violet spectra, have been suggested to be on or near the zero-age main sequence (ZAMS). If their you
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4df9e76acfb7d4d49d084c68bf5211b5
https://hdl.handle.net/11245/1.437331
https://hdl.handle.net/11245/1.437331