Chandra follow-up of bursters with low persistent emission

Cornelisse, R.; Verbunt, F.; in't Zand, J. J. M.; Kuulkers, E.; Heise, J.
Referencia bibliográfica

Astronomy and Astrophysics, v.392, p.931-936 (2002)

Fecha de publicación:
9
2002
Número de autores
5
Número de autores del IAC
0
Número de citas
39
Número de citas referidas
32
Descripción
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 J1752.3-3128I, SAX J1324.5-6313V, 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 1032-33 erg s-1, 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 estimate a total of such sources in our Galaxy between 30 and 4000.