Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...222..181p&link_type=abstract
Astrophysical Journal, Part 1, vol. 222, May 15, 1978, p. 181-190.
Astronomy and Astrophysics
Astrophysics
43
Abundance, Dwarf Stars, Line Spectra, Stellar Spectrophotometry, Heavy Elements, Metallic Stars, Tables (Data), Ubv Spectra
Scientific paper
The abundance analysis of a variety of metal-poor stars is undertaken in an effort to extract accurate relative abundances of the heavy elements over a wide range of stellar metallicities and temperatures. Results derived from photometric Cassegrain echelle spectra are presented for 15 dwarfs and subgiants selected from the high-velocity catalog of Eggen. Overall metallicities range from one-fourth to one-hundredth solar, and temperatures vary from 5250 to 6250 K. The outstanding difficulty is the determination of stellar effective temperature. The apparent presence of systematic errors in Fe I transition probabilities forces a dependence upon broad-band colors to set the zero point of the scale of stellar effective temperatures; the resultant uncertainty of 150 K dominates the overall uncertainty of 0.20 dex in the scale of stellar metallicity values.
No associations
LandOfFree
Abundance analyses of metal-poor stars. I - Blue spectra of 15 high-velocity dwarfs 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 Abundance analyses of metal-poor stars. I - Blue spectra of 15 high-velocity dwarfs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Abundance analyses of metal-poor stars. I - Blue spectra of 15 high-velocity dwarfs will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1296030