Radiation-driven winds of hot stars. VIII - The bistable wind of the luminous blue variable P Cygni (B1 Ia/+/)

Details Radiation-driven winds of hot stars. VIII - The bistable wind of the luminous blue variable P Cygni (B1 Ia/+/) Radiation-driven winds of hot stars. VIII - The bistable wind of the luminous blue variable P Cygni (B1 Ia/+/)

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...237..409p&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 237, no. 2, Oct. 1990, p. 409-424.

Astronomy and Astrophysics

Astrophysics

164

Blue Stars, Hot Stars, Stellar Luminosity, Stellar Winds, Variable Stars, Stellar Envelopes, Stellar Evolution, Stellar Mass, Stellar Models

Scientific paper

A systematic investigation of the basic properties of objects located close to the Humphreys-Davidson limit at the top of the HR diagram is carried out taking P Cygni as an example. A self-consistent stellar-wind code is utilized in calculations for a large grid of wind models necessary to represent the range of stellar parameters that could exemplify the uncertain evolutionary stage of P Cygni in its quiescent phase. On the basis of these calculations, constraints on the evolutionary stage and on the stellar parameters of this star are determined. It is shown that not only the acceleration of the wind but also the observed set of dynamical parameters is conveyed by radiation pressure due to electron scattering and to some 80,000 line transitions. It is concluded that the concept of radiation-driven cool winds is suitable for describing quantitatively not only the stationary-wind dynamics of objects at the top of the HR diagram, but also the variability due to shell ejection.

Affiliated with

Also associated with

No associations

Rating

Radiation-driven winds of hot stars. VIII - The bistable wind of the luminous blue variable P Cygni (B1 Ia/+/) does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Radiation-driven winds of hot stars. VIII - The bistable wind of the luminous blue variable P Cygni (B1 Ia/+/), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radiation-driven winds of hot stars. VIII - The bistable wind of the luminous blue variable P Cygni (B1 Ia/+/) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1301178