2009年
Fermi/large area telescope discovery of gamma-ray emission from the flat-spectrum radio Quasar PKS 1454-354
Astrophysical Journal
- 巻
- 697
- 号
- 1
- 開始ページ
- 934
- 終了ページ
- 941
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1088/0004-637X/697/1/934
- 出版者・発行元
- Institute of Physics Publishing
We report the discovery by the Large Area Telescope (LAT) onboard the Fermi Gamma-Ray Space Telescope of high-energy γ-ray (GeV) emission from the flat-spectrum radio quasar PKS 1454-354 (z = 1.424). On 2008 September 4, the source rose to a peak flux of (3.5 0.7) × 10-6 ph cm -2 s-1 (E >
100 MeV) on a timescale of hours and then slowly dropped over the following 2 days. No significant spectral changes occurred during the flare. Fermi/LAT observations also showed that PKS 1454-354 is the most probable counterpart of the unidentified EGRET source 3EG J1500-3509. Multiwavelength measurements performed during the following days (7 September with Swift
6-7 September with the ground-based optical telescope Automated Telescope for Optical Monitoring
13 September with the Australia Telescope Compact Array) resulted in radio, optical, UV, and X-ray fluxes greater than archival data, confirming the activity of PKS 1454-354. © 2009. The American Astronomical Society. All rights reserved..
100 MeV) on a timescale of hours and then slowly dropped over the following 2 days. No significant spectral changes occurred during the flare. Fermi/LAT observations also showed that PKS 1454-354 is the most probable counterpart of the unidentified EGRET source 3EG J1500-3509. Multiwavelength measurements performed during the following days (7 September with Swift
6-7 September with the ground-based optical telescope Automated Telescope for Optical Monitoring
13 September with the Australia Telescope Compact Array) resulted in radio, optical, UV, and X-ray fluxes greater than archival data, confirming the activity of PKS 1454-354. © 2009. The American Astronomical Society. All rights reserved..
- リンク情報
- ID情報
-
- DOI : 10.1088/0004-637X/697/1/934
- ISSN : 1538-4357
- ISSN : 0004-637X
- eISSN : 1538-4357
- ORCIDのPut Code : 77153153
- arXiv ID : arXiv:0903.1713
- SCOPUS ID : 66649113970
- BibTex Code : 2009ApJ...697..934A