The ultra-violet spectrum of the peculiar early-type supergiant, HD 157038

Details The ultra-violet spectrum of the peculiar early-type supergiant, HD 157038 The ultra-violet spectrum of the peculiar early-type supergiant, HD 157038

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...211..397d&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 211, no. 2, March 1989, p. 397-401.

Astronomy and Astrophysics

Astrophysics

5

B Stars, Early Stars, Peculiar Stars, Stellar Spectra, Supergiant Stars, Ultraviolet Spectra, Carbon, Iue, Resonance Lines, Silicon, Stellar Atmospheres

Scientific paper

Ultra-violet spectra of the nitrogen rich supergiant, HD 157038, are presented and compared with those of the normal supergiant, HD 148379. The P-Cygni profiles of the Si IV and C IV resonance lines are very similar, implying that the stars have similar masses; this is evidence against HD 157038 being in a post red supergiant evolutionary stage and evolving toward higher effective temperatures. Comparison of observed fluxes with those deduced from LTE model atmosphere calculations, confirms the peculiar far ultra-violet extinction in the spectra of HD 157038. The possibility that this is due to circumstellar material is briefly discussed.

Affiliated with

Also associated with

No associations

Rating

The ultra-violet spectrum of the peculiar early-type supergiant, HD 157038 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 The ultra-violet spectrum of the peculiar early-type supergiant, HD 157038, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The ultra-violet spectrum of the peculiar early-type supergiant, HD 157038 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1800413