Hard X-ray lags of Cygnus X-1 on short timescales

Details Hard X-ray lags of Cygnus X-1 on short timescales Hard X-ray lags of Cygnus X-1 on short timescales

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010scchg..53s.150j&link_type=abstract

Science China Physics, Mechanics and Astronomy, Volume 53, Issue 1, pp.150-152

Astronomy and Astrophysics

Astronomy

Spectral Lags, Cygnus X-1, Data Analysis

Scientific paper

Calculating the time lags over different timescales using the cross-correlation technique may lead to a biased estimate of small timescales. Given a timescale for lightcurve binning, we propose to subtract the local average instead of the global average during the cross-correlation, in order to filter variations on timescales larger than the bin size. The new method allows us to make an unbiased estimate of the time lags using RXTE/PCA data on timescales as small as ˜5 ms, where the Fourier technique becomes invalid. We calculate the time lag spectra of Cygnus X-1 at different spectral states with the new method, and find that the source appears to have similar X-ray lags on small timescales independent of its spectral states.

Affiliated with

Also associated with

No associations

Rating

Hard X-ray lags of Cygnus X-1 on short timescales 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 Hard X-ray lags of Cygnus X-1 on short timescales, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hard X-ray lags of Cygnus X-1 on short timescales will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-805545