Spectral states and state preference of galactic X-ray binaries  

作　　者：YAN Zhen & YU WenFei Shanghai Astronomical Observatory,Shanghai 200030,China 

出　　处：《Science China(Physics,Mechanics & Astronomy)》2010年第S1期147-149,共3页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 10773023 and 10833002);the One Hundred Talents project of the Chinese Academy of Sciences,the Shanghai Pujiang Program (Grant No. 08PJ14111);the National Basic Research Program of China (Grant No. 2009CB824800);the Starting Funds at the Shanghai Astronomical Observatory

摘　　要：Using observations in the past four years with the All Sky Monitor(ASM) onboard the Rossi X-ray Timing Explorer(RXTE) and the Burst Alert Telescope(BAT) onboard the Swift,we demonstrate that the hard state and the soft state are the primary spectral states in galactic black hole and neutron star X-ray binaries.In addition,we show quantitatively the preference of the two spectral states for each of the 22 bright persistent sources.Using observations in the past four years with the All Sky Monitor(ASM) onboard the Rossi X-ray Timing Explorer(RXTE) and the Burst Alert Telescope(BAT) onboard the Swift,we demonstrate that the hard state and the soft state are the primary spectral states in galactic black hole and neutron star X-ray binaries.In addition,we show quantitatively the preference of the two spectral states for each of the 22 bright persistent sources.

关 键 词：X-ray binaries:black HOLES NEUTRON stars 

分 类 号：P172.2[天文地球—天文学]