Observation of CYG X-1 in the High State with Hetg/chandra

Details Observation of CYG X-1 in the High State with Hetg/chandra Observation of CYG X-1 in the High State with Hetg/chandra

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001cxo..prop.1122f&link_type=abstract

Chandra Proposal ID #03408113

Physics

Chandra Proposal Id #03408113

Scientific paper

The 7 HETG/Chandra observations of Cyg X-1 covered the low(LS), transition(TS) and high(HS) states that showed variable spectral features. Recent 3 observations (5ks) in HS showed an evidence for broad Fe K line which is markedly different from that of LS and TS. It indicates that the disk line may be distorted significantly by strong relativistic effects near the black hole in HS.However, poor S/N line profiles in HS did not allow us to measure the relativistic effects, the inner accretion disk radius which is generally believed very close to the last stable orbit and can be used to determine the spin of the hole, ionization states, inclination, etc. We propose 60 ks CC-mode HETG/Chandra observation of Cyg X-1, which has settled in rare HS(HR2<0.7, ASM/RXTE since April 2002) to detect the broad line. It is important also in understanding the physical process which causes the state transition. A simultaneous RXTE observation will also be planned to constrain the continuum above 5 keV.

Affiliated with

Also associated with

No associations

Rating

Observation of CYG X-1 in the High State with Hetg/chandra does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Observation of CYG X-1 in the High State with Hetg/chandra, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observation of CYG X-1 in the High State with Hetg/chandra will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1488847