Zobrazeno 1 - 10
of 17
pro vyhledávání: '"L. Hennicker"'
Classical Wolf Rayet (WR) stars are direct supernova progenitors undergoing vigorous mass-loss. Understanding the dense and fast outflows of such WR stars is thus crucial for understanding advanced stages of stellar evolution, the dynamical feedback
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cfde99f0cfd4435692a4ca70d243744e
http://arxiv.org/abs/2203.01108
http://arxiv.org/abs/2203.01108
Autor:
L. Hennicker, N. D. Kee, T. Shenar, J. Bodensteiner, M. Abdul-Masih, I. El Mellah, H. Sana, J. O. Sundqvist
Publikováno v:
Proceedings of the International Astronomical Union. 16:138-143
To decode the information stored within a spectrum, detailed modelling of the physical state is required together with accurate radiative transfer solution schemes. In the analysis of stellar spectra, the numerical model often needs to account for hi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3dcbeec2651e63d6a75586e8b828e9b5
https://doi.org/10.1017/s174392132200062x
https://doi.org/10.1017/s174392132200062x
Autor:
J. O. Sundqvist, Véronique Petit, C. Erba, Corinne Fletcher, Alexander W. Fullerton, L. Hennicker, Yaël Nazé, A. David-Uraz, Asif ud-Doula
Recent large-scale spectropolarimetric surveys have established that a small but significant percentage of massive stars host stable, surface dipolar magnetic fields with strengths on the order of kG. These fields channel the dense, radiatively drive
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e3ea06fb004694650ce3a2f3978f8dd
http://arxiv.org/abs/2106.13676
http://arxiv.org/abs/2106.13676
Context. Radiation-driven mass loss is key to our understanding of massive-star evolution. However, for low-luminosity O-type stars there are big discrepancies between theoretically predicted and empirically derived mass-loss rates (called the weak-w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f8f006d8228f2b18dde898978ddcddd
http://arxiv.org/abs/2103.15904
http://arxiv.org/abs/2103.15904
Autor:
Michael Abdul-Masih, I. El Mellah, Tomer Shenar, N. D. Kee, Jon O. Sundqvist, L. Hennicker, J. Bodensteiner, Hugues Sana
Publikováno v:
Astronomy & Astrophysics, 660:A17. EDP Sciences
Context. To quantitatively decode the information stored within an observed spectrum, detailed modelling of the physical state and accurate radiative transfer solution schemes are required. The accuracy of the model is then typically evaluated by com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c242f434a441d976415c714b405b7b9
Context. Knowledge about hot, massive stars is usually inferred from quantitative spectroscopy. To analyse non-spherical phenomena, the existing 1D codes must be extended to higher dimensions, and corresponding tools need to be developed. Aims. We pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da7f856ac83ba674eddcbd65376d0a07
http://arxiv.org/abs/1910.13379
http://arxiv.org/abs/1910.13379
Publikováno v:
Astronomy & Astrophysics. 616:A140
Context. State of the art quantitative spectroscopy utilizes synthetic spectra to extract information from observations. For hot, massive stars, these synthetic spectra are calculated by means of 1D, spherically symmetric, NLTE atmosphere and spectru
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0f0bd63136fc95ea1196eb7f33298b8
https://doi.org/10.1051/0004-6361/201731858
https://doi.org/10.1051/0004-6361/201731858
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