The implications from CANGAROO-III observations of TeV blazar PKS 2155-304

Details The implications from CANGAROO-III observations of TeV blazar PKS 2155-304 The implications from CANGAROO-III observations of TeV blazar PKS 2155-304

2008-10-13

arxiv.org/abs/0810.2151v1

Astronomy and Astrophysics

Astrophysics

4 pages, 5 figures, proceedings of the "4th Heidelberg International Symposium on High Energy Gamma-Ray Astronomy" July 7-11,

Scientific paper

10.1063/1.3076714

We have observed the high-frequency-peaked BL Lacertae object PKS2155-304 in 2004, 2005 and 2006 with the CANGAROO-III imaging atmospheric Cherenkov telescope, and have detected a signal above 660 GeV at the 4.8/sigma level during the 2006 outburst period. Intranight flux variability on time scale of half an hour is observed. From this variability time scale, the size of the TeV gamma-ray emission region is restricted to 5x10^13\delta cm, and the super massive black hole mass is estimated to be less than 1.9x10^8\delta M_{Solar}, where \delta is the beaming factor. The differential energy spectrum is obtained, and an upper limit of the extragalactic infrared background light (EBL) flux is derived under some assumption. We also fit a synchrotron self Compton (SSC) model to the spectral energy distribution (SED) and derive the beaming factor and magnetic field strength.

Affiliated with

Also associated with

No associations

Rating

The implications from CANGAROO-III observations of TeV blazar PKS 2155-304 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 The implications from CANGAROO-III observations of TeV blazar PKS 2155-304, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The implications from CANGAROO-III observations of TeV blazar PKS 2155-304 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-720000