CCD Photometry for the Globular Cluster NGC 7089 (M2)

Details CCD Photometry for the Globular Cluster NGC 7089 (M2) CCD Photometry for the Globular Cluster NGC 7089 (M2)

Dec 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aas...18510418g&link_type=abstract

American Astronomical Society, 185th AAS Meeting, #104.18; Bulletin of the American Astronomical Society, Vol. 26, p.1491

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the first CCD color-magnitude diagram in the B and V passbands for the Galactic globular cluster NGC 7089 (M2). The photometry extends below the main sequence turnoff and reveals a well-defined red giant branch and a horizontal branch populated on the blue side of the RR Lyrae instability strip. These data will be used to revise current estimates of the cluster metallicity, reddening, and distance. In addition, we will present the results of our investigation into the possible existence of a dust lane in the northeast quadrant of the cluster.

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