Variable stars in the bulge of the galaxy in a field around NGC 6304

Details Variable stars in the bulge of the galaxy in a field around NGC 6304 Variable stars in the bulge of the galaxy in a field around NGC 6304

Jul 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981aj.....86.1044h&link_type=abstract

Astronomical Journal, vol. 86, July 1981, p. 1044-1056.

Astronomy and Astrophysics

Astronomy

8

Galactic Bulge, Globular Clusters, Milky Way Galaxy, Star Distribution, Variable Stars, Astronomical Catalogs, Stellar Evolution, Stellar Magnitude

Scientific paper

Forty-two new variables have been discovered in the field surrounding the globular cluster NGC 6304. Periods have been determined for 40 RR Lyrae stars in the field. The period-frequency histogram is similar to that for the RR Lyrae variables in Baade's 'window' around NGC 6522 and is consistent with the interpretation that the stars are only mildly metal deficient. The space distribution of the RR Lyrae stars is apparently different from that of the system of globular clusters, thereby suggesting a different dynamical history for these stars.

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