Identification and astrometry of variables in M3

Details Identification and astrometry of variables in M3 Identification and astrometry of variables in M3

2000-04-18

arxiv.org/abs/astro-ph/0004259v1

Astronomy and Astrophysics

Astrophysics

24 pages (38 with figures), 16 figures, 1 table, submitted to Acta Astronmica (HTML: http://www.konkoly.hu/staff/bakos/M3/)

Scientific paper

We present identification and astrometry of all previously known or suspected variables along with the discovery of six new variables in the globular cluster M3. The number of the catalogized variables increased to 274 by including all the confirmed, previously known variables and the new discoveries. The precise and homogeneous astrometry, as well as the clarification of misapprehensions in the preceding identifications are done by using overlapping fields from a wide-field Schmidt-camera, a 1m RCC telescope, and HST archive observations from the center of the cluster. The astrometric positions can serve as a direct input to any photometry which needs the accurate centers of the variables.

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