Astronomy and Astrophysics – Astrophysics
Scientific paper
2003-10-08
Astrophys.J. 601 (2004) 165-172
Astronomy and Astrophysics
Astrophysics
accepted for publication in Astrophysical Journal
Scientific paper
10.1086/380447
Between 7 March 2002 and 15 June 2002, intensive X-ray observations were carried out on the extreme BL Lac object H1426+428 with instruments on board the Rossi X-ray Timing Explorer (RXTE). These instruments provide measurements of H1426+428 in the crucial energy range that characterizes the first peak of its spectral energy distribution. This peak, which is almost certainly due to synchrotron emission, has previously been inferred to be in excess of 100 keV. By taking frequent observations over a four-month campaign, which included $\sim$450 ksec of RXTE time, studies of flux and spectral variability on multiple timescales were performed, along with studies of spectral hysteresis. The 3-24 keV X-ray flux and spectra exhibited significant variability, implying variability in the location of the first peak of the spectral energy distribution. Hysteresis patterns were observed, and their characteristics have been discussed within the context of emission models.
Cui Wei-Wei
Falcone Abe D.
Finley James P.
No associations
LandOfFree
X-Ray Spectral Variability of Extreme BL Lac AGN H1426+428 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 X-Ray Spectral Variability of Extreme BL Lac AGN H1426+428, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and X-Ray Spectral Variability of Extreme BL Lac AGN H1426+428 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-640517