Identification of new low-mass members of the Alpha Persei open cluster by ROSAT. I.

Details Identification of new low-mass members of the Alpha Persei open cluster by ROSAT. I. Identification of new low-mass members of the Alpha Persei open cluster by ROSAT. I.

Jul 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998an....319..201p&link_type=abstract

Astronomische Nachrichten, vol. 319, no. 4, p. 201.

Astronomy and Astrophysics

Astronomy

12

Scientific paper

Following the work of Randich et al. (1996) involving a ROSAT raster scan survey of the alpha Persei open cluster, we present here the results of a photometric/spectroscopic program examining the possible optical counterparts to a group of 73 X-ray sources in the raster survey which were not matched to catalogued stars. Of the 73 sources investigated, ~ 40 have an optical counterpart with photometry acceptable for cluster membership and ~ 20 of these also have radial velocities consistent with membership. We discuss the X-ray properties of these potential new members and why they may not have been identified in earlier membership surveys of this cluster.

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