The metal abundance of PAL 13

Details The metal abundance of PAL 13 The metal abundance of PAL 13

Aug 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982aj.....87.1190z&link_type=abstract

Astronomical Journal, vol. 87, Aug. 1982, p. 1190-1196.

Astronomy and Astrophysics

Astrophysics

13

Abundance, Cepheid Variables, Globular Clusters, Metals, Spectrograms, Astrophysics, Spectral Resolution

Scientific paper

Low resolution spectrograms have been obtained of the three RR Lyrae variables in the distant and very sparse globular cluster Pal 13. A comparison of these spectrograms with similar ones of several RR Lyrae variables in the globular clusters M4, M5, and M22 reveals that Pal 13 is intermediate to M5 and M22 in metal abundance. A value of Fe/H = -1.67 + or - 0.15 is obtained for Pal 13 by adopting Zinn's (1980a) values of Fe/H for these other clusters. Pal 13 is another example of a distant halo object that is not extremely metal poor.

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