3 papers
astro-ph2008★ 35 cited
The Globular Cluster M15. I. Identification, Discovery, and Period Determination of Variable Stars
T. M. Corwin, J. Borissova, P. B. Stetson +4
We present new CCD photometry for variables in the globular cluster M15. Our photometry was obtained using both the image subtraction package ISIS and DAOPHOT/ALLFRAME. The d…
astro-ph2007★ 36 cited
Obscured clusters.I. GLIMPSE30 - Young Milky Way Star Cluster Hosting Wolf-Rayet Stars
R. Kurtev, J. Borissova, L. Georgiev +2
Young massive clusters are perfect astrophysical laboratories for study of massive stars. Clusters with Wolf-Rayet (WR) stars are of special importance, since this enables us to st…
astro-ph2006★ 15 cited
Infrared Spectroscopy of the Ultra Low Mass Binary Oph 162225-240515
Alexis Brandeker, Ray Jayawardhana, Valentin D. Ivanov +1
Binary properties are an important diagnostic of the star and brown dwarf formation processes. While wide binaries appear to be rare in the sub-stellar regime, recent observations…