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HST/FOS Discovery of Probable CVS in NGC 6397

Published online by Cambridge University Press:  25 May 2016

Jonathan E. Grindlay  and
Adrienne M. Cool
Jonathan E. Grindlay
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
Adrienne M. Cool
Affiliation:
Department of Astronomy, University of California, Berkeley, CA 94720, USA

Extract

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Our recent HST/FOS spectra (Grindlay et al 1995; GC95) have spectro-scopically identified the 3 central Hα candidates (Cool et al 1995; CG95) as the probable cataclysmic variable (CV) counterparts of the the three central dim x-ray sources (Cool et al 1993; CG93) in the nearby core collapsed globular NGC 6397. Here we present the x-ray vs. optical properties of these three objects, derived from the FOS spectra presented in GC95 and the x-ray data of CG93, which strengthen the case that they are CVs and not quiescent LMXBs. Additional data and discussion are presented in the accompanying paper by Grindlay (these proceedings).

Type
Stellar Evolution in Star Clusters
Information
Symposium - International Astronomical Union , Volume 174: Dynamical Evolution of Stars Clusters , 1996 , pp. 349 - 350
Copyright
Copyright © Kluwer 1996 

References

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