Luminous Blue Variables, Cool Hypergiants, and Supernova Impostors: The Role of Episodic Mass Loss

A. Mehner, W. J. De Wit, D. Baade, H. M.J. Boffin, K. Davidson, J. Groh, R. M. Humphreys, C. Martayan, R. D. Oudmaijer, T. Rivinius, F. Selman, W. Steffen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The role of mass loss, especially episodic mass loss, in evolved massive stars is one of the outstanding questions in stellar evolution theory. IFU observations can provide superb information on the recent mass-loss history and the evolutionary stages. With VLT MUSE we have observed a representative sample of massive stars from different evolved stellar classes that underwent episodic mass loss, which gave rise to extended nebulae. The structural inhomogeneities and associated velocity differences in the nebulae are tracers of the mass-loss history. The simultaneous observation of all lines at each position in the nebulae provides very accurate line ratios for physical diagnostics.

Original languageEnglish (US)
Title of host publicationThe Physics of Evolved Stars
Subtitle of host publicationA Conference Dedicated to the Memory of Olivier Chesneau
EditorsF. Millour, T. Lanz, E. Lagadec
PublisherEDP Sciences
Pages49-51
Number of pages3
ISBN (Electronic)9782759819072
DOIs
StatePublished - Dec 1 2015
EventPhysics of Evolved Stars Conference 2015 - Nice, France
Duration: Jun 8 2015Jun 12 2015

Publication series

NameEAS Publications Series
Volume71-72
ISSN (Print)1633-4760
ISSN (Electronic)1638-1963

Other

OtherPhysics of Evolved Stars Conference 2015
CountryFrance
CityNice
Period6/8/156/12/15

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