Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aspc..233..129g&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
We present and discuss optical spectra of Luminous Blue Variables (LBVs) with resolutions of R 50000-100000 and high signal-to-noise ratios (S/N ~100-1000, depending on wavelength region and object). None of the stars show significant variations in their spectra during our snap-shot observations (time-scale of a few hours). All objects exhibit inhomogeneities in their line profiles that get more pronounced and more frequent in spectral lines that are formed further out in the atmosphere. These findings indicate that LBVs might have non-uniform wind structures where clumps and/or shells could be common features. All spectra and their detailed descriptions can be found in chapter 4 and the appendix of the Ph.D. thesis at: http://chippewa.nascom.nasa.gov/gaeng/.
No associations
LandOfFree
Ultra-high resolution spectroscopy of P Cygni and similar stars in the optical wavelength region 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 Ultra-high resolution spectroscopy of P Cygni and similar stars in the optical wavelength region, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultra-high resolution spectroscopy of P Cygni and similar stars in the optical wavelength region will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1582359