Speaker
Description
The globular clusters (GCs) are dense stellar systems which can produce the compact binaries (e.g. cataclysmic variables (CVs), millisecond pulsars (MSPs), quiescent low-mass X-ray binary (qLMXBs)) through frequent dynamical interactions. M62 is among the GCs with the highest stellar encounter rate. In our analysis, we identify 43 X-ray sources within M62’s half-light radius from two different observations with Chandra (0.3 - 7.0 keV) separated by ~12 years. Based on the distribution in the X-ray color-luminosity diagram and the variability analysis, 9 CV candidates and 4 qLMXBs candidates have been suggested. 2 MSP counterparts and 1 black hole (BH) candidate have been identified by the positional coincidence with the radio position. For all these compact binaries, we have also examined their spectral properties in details
Affiliation | Dept. of Astronomy and Space Science Chungnam National University |
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Topic | Compact and diffuse sources in galaxies and in the Galactic Center |