Swift follow-up confirms the high activity state of CGRaBS J1848+3219
Abstract
Following the gamma-ray flare of CGRaBS J1848+3219 (also known as B2 1846+32A and 1FGL J1848.5+3224; Abdo et al. 2010, ApJS 188, 405) detected by Fermi LAT on October 18, 2010 (ATel #2954, Donato et al. 2010) we performed a Swift target of opportunity observation on October 19.
Swift/XRT data were taken in Photon Counting mode for a total exposure of 4.4 ksec. The X-ray spectrum (0.3-10 keV) can be fit by an absorbed power law model with a HI column density consistent with the Galactic value in the direction of the source.- Publication:
-
The Astronomer's Telegram
- Pub Date:
- October 2010
- Bibcode:
- 2010ATel.2963....1D
- Keywords:
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- Optical;
- Ultra-Violet;
- X-ray;
- Gamma Ray;
- >GeV;
- Request for Observations;
- AGN;
- Blazar;
- Quasar