Abundances of TC and related elements in stars of type M, MS, and S

Details Abundances of TC and related elements in stars of type M, MS, and S Abundances of TC and related elements in stars of type M, MS, and S

Nov 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...381..278v&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 381, Nov. 1, 1991, p. 278-287. Research supported by Kennilworth Fund.

Astronomy and Astrophysics

Astrophysics

13

M Stars, Nuclear Astrophysics, S Stars, Stellar Composition, Abundance, Asymptotic Giant Branch Stars, Chemical Composition, Late Stars

Scientific paper

Abundances of Co, Zr, Nb, and Tc relative to V have been derived for a sample of ten M and MS stars from 0.10 A/pixel and 0.04 A/pixel Reticon spectra. On a scale with log N(H) = 12.0 and log N(V) = 4.0, it is found that log N(Tc) is about 1.4 for M stars 1.0 MS stars with Tc. It has been suggested by Dominy and Wallerstein that the presence of Tc in M stars which show no enhancements of other s-process elements can be explained by a 'mini s-process'. Detailed calculations and the observed abundances and Tc and related elements presented in this study put this interpretation in doubt. The observations also fail to support the alternative hypothesis suggested by Malaney and Lattanzio that Tc is produced by the photofission of Th and U.

Affiliated with

Also associated with

No associations

Rating

Abundances of TC and related elements in stars of type M, MS, and S 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 Abundances of TC and related elements in stars of type M, MS, and S, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Abundances of TC and related elements in stars of type M, MS, and S will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1716764