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The Duty-cycle of Gamma-ray Blazars: a New Approach, New Results | S. Vercellone
; S. Soldi
; A.W. Chen
; M. Tavani
; | Date: |
15 Nov 2004 | Journal: | Mon.Not.Roy.Astron.Soc. 353 (2004) 890; AIP Conf.Proc. 745 (2005) 493-498 | Subject: | astro-ph | Affiliation: | IASF/CNR, Milano), S. Soldi (ISDC, Versoix), A.W. Chen (CIFS, Torino & IASF/CNR, Milano), M. Tavani (IASF/CNR, Roma & CIFS, Torino | Abstract: | We study several properties of blazars detected in the gamma-ray energy range by comparing the EGRET sources with a sample of radio blazars which can be considered possible gamma-ray candidates. We define three classes: non-gamma-ray blazars, blazars with quasi-steady gamma-ray emission, and gamma-ray blazars with substantial activity level. By combining the information of detected and candidate AGNs, we characterise the blazar activity, including the discovery of a region of consistency between the gamma-ray flaring duty-cycle and the recurrence time between flares. We also find a possible relation between the activity index of FSRQs and their black hole mass. | Source: | arXiv, astro-ph/0411389 | Services: | Forum | Review | PDF | Favorites |
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