Seminar Title:	Multi-wavelength Study of High Mass X-ray Binaries in Our Galaxy
Speaker:	Dr.YAN Jingzhi
Affiliation:	(PMO)
When:	Tuesday aftrnoon, July 22th, 2:30 p.m
Where:	Room 517, Office Block, 2 West Beijing Road (PMO, CAS)
	Welcome to attend
	( PMO Academic committee & academic circulating committee)

　 abstract　

　  High mass X-ray binary is an ideal astrophysical laboratory to study the compact object, the optical companion star, the mass exchange between them, and the evolution of each component. We monitor a sample of high mass X-ray binaries using 2.16m telescope of Xinglong Station, NAOC. Since 2007, we have the synchronous photometric observations with 100-cm EST and 80-cm Tsinghua-NAOC Telescope (TNT) at Xinglong Station. Combining with the present public X-ray observational data (RXTE, Swift, INTEGRAL et al.), we can study and explain the variability in the multi-wavelength observations. With the sky survey of INTEGRAL, more and more high mass X-ray binaries are found and most of them belong to the class of supergiant X-ray binaries. They can be divided into two different groups, the obscured X-ray source and the supergiant fast X-ray transient (SFXT). We analyze the near infrared observational results on a sample of INTEGRAL sources monitored by Rapid Eye Mount (REM) at La Silla, ESO, in collaboration with Dr. Sylvain Chaty (CEA/Saclay). Combining with the observational results of RXTE/ASM, Siwft/BAT and INTEGRAL/ISIGRI, we can learn the physical nature of these systems.