A consistent spectral model of WR 136 and its associated bubble NGC 6888

We analyse whether a stellar atmosphere model computed with the code CMFGEN provides an optimal description of the stellar observations of WR 136 and simultaneously reproduces the nebular observations of NGC 6888, such as the ionization degree, which is modelled with the pyCloudy code. All the observational material available (far and near UV and optical spectra) were used to constrain such models. We found that the stellar temperature T∗, at τ = 20, can be in a range between 70 000 and 110 000 K, but when using the nebula as an additional restriction, we found that the stellar models with T∗ ∼ 70 000 K represent the best solution for both, the star and the nebula.

Metadaten
Author details:	J. Reyes-Pérez, C. Morisset, M. Pena, A. Mesa-Delgado
URN:	urn:nbn:de:kobv:517-opus4-88274
Title of parent work (English):	Wolf-Rayet Stars : Proceedings of an International Workshop held in Potsdam, Germany, 1.–5. June 2015
Publication type:	Article
Language:	English
Publication year:	2015
Publishing institution:	Universität Potsdam
Release date:	2016/02/23
First page:	321
Last Page:	324
Organizational units:	Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie
DDC classification:	5 Naturwissenschaften und Mathematik / 52 Astronomie / 520 Astronomie und zugeordnete Wissenschaften
Publishing method:	Universitätsverlag Potsdam
Collection(s):	Universität Potsdam / Tagungsbände/Proceedings (nicht fortlaufend) / Wolf-Rayet Stars: Proceedings of an International Workshop held in Potsdam, Germany, 1.–5. June 2015 / Wolf-Rainer Hamann, Andreas Sander, Helge Todt (Eds.)
	Universität Potsdam / Tagungsbände/Proceedings (nicht fortlaufend) / Wolf-Rayet Stars: Proceedings of an International Workshop held in Potsdam, Germany, 1.–5. June 2015 / Wolf-Rainer Hamann, Andreas Sander, Helge Todt (Eds.) / WR nebulae
License (German):	Keine öffentliche Lizenz: Unter Urheberrechtsschutz