High-resolution emission-line spectroscopy of Be stars. II - Fe II and other weak emission lines

Details High-resolution emission-line spectroscopy of Be stars. II - Fe II and other weak emission lines High-resolution emission-line spectroscopy of Be stars. II - Fe II and other weak emission lines

Feb 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...173..299h&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 173, no. 2, Feb. 1987, p. 299-314.

Astronomy and Astrophysics

Astrophysics

51

B Stars, Emission Spectra, Iron, Line Spectra, Metallicity, Spectral Resolution, Abundance, Southern Sky, Spectral Energy Distribution, Stellar Envelopes, Variable Stars

Scientific paper

Spectroscopic observations, obtained with resolution R = 50,000 using a coude echelle spectrograph with an 1872-pixel reticon on the 1.4-m Coude Auxiliary Telescope at ESO on eight nights in January-March 1985, are reported for 17 bright southern Be stars. Emission-line profiles are measured for the Fe II lines at 6384, 5317/5198, 5169, and 4584 A; the Si II line at 6371 A; and (for three stars) the He I lines at 5876 and 6678 A. The results are presented in extensive tables and graphs and characterized in detail. Symmetrical doubly peaked class 1 profiles with widths correlated to the projected rotational velocity are found in 13 stars, with no evidence of a two-component structure; the Fe II emission is attributed to the primary dense innermost disk component of the H-alpha-emitting envelope. The weak-line profiles of the other four objects are shown to be class 2 (asymmetric and single-peaked) like their H-alpha profiles.

Affiliated with

Also associated with

No associations

Rating

High-resolution emission-line spectroscopy of Be stars. II - Fe II and other weak emission lines 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 High-resolution emission-line spectroscopy of Be stars. II - Fe II and other weak emission lines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-resolution emission-line spectroscopy of Be stars. II - Fe II and other weak emission lines will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1010768