Spectroscopy of hot stars in the Galactic halo

Details Spectroscopy of hot stars in the Galactic halo Spectroscopy of hot stars in the Galactic halo

Jan 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aj....103..267b&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 103, Jan. 1992, p. 267-296.

Astronomy and Astrophysics

Astronomy

64

A Stars, B Stars, Hot Stars, Milky Way Galaxy, O Stars, Stellar Spectrophotometry, Abundance, Galactic Structure, Halos, Horizontal Branch Stars, Spectral Line Width, Subdwarf Stars, Ubv Spectra

Scientific paper

The paper presents spectroscopy for 769 hot stars from the HK objective-prism/interference-filter survey of Beers et al. (1985), 193 of which have also available broadband UBV colors. When available, photometric information is used to obtain estimates of the surface temperature for degenerates and for O- and B-type subdwarfs, based on previously derived calibrations. Several extremely hot (T(eff) greater than 50,000 K) He-rich sdO stars are identified. Out of 769 stars in this sample, 551 are clearly identified on the basis of their Balmer line profiles as field horizontal-branch (FHB) or mid-to late-type A stars. The A stars exhibit rotation and line-of-sight dispersion consistent with membership in the galactic thick disk. The FHB stars exhibit kinematic properties which suggest a transition from thick disk to halo.

Affiliated with

Also associated with

No associations

Rating

Spectroscopy of hot stars in the Galactic halo 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 Spectroscopy of hot stars in the Galactic halo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectroscopy of hot stars in the Galactic halo will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-934441