Astronomy and Astrophysics – Astronomy
Scientific paper
May 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998arep...42..307k&link_type=abstract
Astronomy Reports, Volume 42, Issue 3, May 1998, pp.307-311
Astronomy and Astrophysics
Astronomy
1
Scientific paper
Spectra of the stars I-12 and IV-15 in the globular cluster M13 with resolution R = 25 000 and signal-to-noise ratio S/N = 50 have been obtained using the Echelle spectrometer of the 6-m telescope of the Special Astrophysical Observatory. Model-atmosphere analyses of the spectra were carried out, and abundances for 19 elements determined. Overabundances of sodium and aluminum were found. The oxygen and sodium abundances are in good agreement with the relation between these two abundances in M13 previously presented by Kraft et al. The sodium to aluminum ratio also agrees with the correlation between these elements previously found for halo stars with metallicities -1.0 > [Fe/H] > -1.9. The star IV-15 shows some evidence for a small excess of elements formed during the s-process.
Klochkova Valentina G.
Mishenina Tamara V.
No associations
LandOfFree
Atmospheric composition of a giant and an asymptotic giant branch star in the globular cluster M13 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 Atmospheric composition of a giant and an asymptotic giant branch star in the globular cluster M13, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Atmospheric composition of a giant and an asymptotic giant branch star in the globular cluster M13 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1368239