Comparing P Cygni's Spectroscopic Variability with that of other B-type Supergiants

Details Comparing P Cygni's Spectroscopic Variability with that of other B-type Supergiants Comparing P Cygni's Spectroscopic Variability with that of other B-type Supergiants

Jun 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aspc..233..149r&link_type=abstract

P Cygni 2000: 400 Years of Progress, ASP Conference Proceeding Vol. 233, Edited by M. de Groot and C. Sterken, San Francisco: As

Astronomy and Astrophysics

Astronomy

Scientific paper

The spectral variability of OBA super- and hypergiants is reviewed, based on the monitorings conducted by the Landessternwarte Heidelberg Hot Star Group. The datasets of a sample of more than two dozen stars cover typically a couple of months and a spectral range from 3500 to 8600 A, with a resolving power of 20000. Using these data sets, a scheme of the variability, changing as a function of the position in the Hertzsprung-Russell diagram, is proposed. The spectral variability of P Cygni is compared to these results.

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