Evidence for violent ejection of nebulae from massive stars

Details Evidence for violent ejection of nebulae from massive stars Evidence for violent ejection of nebulae from massive stars

Jan 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...281l..81h&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 281, no. 2, p. L81-L84

Astronomy and Astrophysics

Astrophysics

26

Blue Stars, Massive Stars, Nebulae, Stellar Luminosity, Stellar Mass, Stellar Mass Ejection, Supergiant Stars, Variable Stars, H Alpha Line, H Beta Line, Infrared Spectra, Ionized Gases, Mathematical Models, Stellar Evolution, Stellar Models

Scientific paper

We report the results of a systematic search for nebulae around Luminous Blue Variable LBVs) and the discovery of a strong correlation between the mass of the nebulae and the luminosity of the central stars. This correlation holds for both the dust and ionized gas masses of the nebulae. The existence of a 'nebular mass-stellar luminosity' relation and the fact that not all LBVs are presently associated with a nebula give evidence against a continuous mass-loss mechanism for the formation of these nebulae. Further, the good agreement found between the observed relation and predictions by Maeder (1989), suggests that all these nebulae may be due to a violent ejection of matter caused by an instability of structural origin.

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