NSV 09295: A double-mode RR lyrae variable.

Details NSV 09295: A double-mode RR lyrae variable. NSV 09295: A double-mode RR lyrae variable.

Sep 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aj....114.1190g&link_type=abstract

Astronomical Journal v.114, p. 1190-1194 (1997)

Astronomy and Astrophysics

Astronomy

18

Stars: Variables: Rr Lyrae, Stars: Individual: Nsv 09295

Scientific paper

An analysis of more than 2000 CCD observations of the field RR Lyrae star NSV 09295 shows that the star is a double-mode RR Lyrae (RRd) variable with P_0=0\day 46334 and P_1=0\day 34423. This brings the total of known field RRd stars in the Milky Way galaxy to four. These four variables are compared with the RRd stars in galactic globular clusters and with the field RRd stars in the LMC, and in the Draco and Sculptor dwarf galaxies. It appears that all known RRd stars have a metal abundance of less than [Fe/H] = -1.6.

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