Chandra follow-up of bursters with low persistent emission

R. Cornelisse, F. Verbunt, J. J. M. in 't Zand, E. Kuulkers, J. Heise
2002 Astronomy and Astrophysics  
We report on Chandra ACIS-S observations of five type I X-ray bursters with low persistent emission: SAX J1324.5-6313, SAX J1752.3-3128, SAX J1753.5-2349, SAX J1806.5-2215 and SAX J1818.7+1424. We designate candidate persistent sources for four X-ray bursters. All candidates are detected at a persistent luminosity level of 10^(32-33) erg/s, comparable to soft X-ray transients in quiescence. From the number of bursters with low persistent emission detected so far with the Wide Field Cameras, we
more » ... stimate a total of such sources in our Galaxy between 30 and 4000.
doi:10.1051/0004-6361:20021183 fatcat:i2u5x6eiuba6dl6n25g4uhhpp4