The Study of AGN with an Improved Fermi LAT Event Reconstruction
Abstract
Blazars dominate the gamma-ray sky above 100 MeV. The second Fermi LAT catalog included 1,298 identified or associated sources, and 84% of them are Active Galactic Nuclei (AGN), mostly blazars. Over the past five years of the Fermi mission, we have measured rapid (20 minute) variability in FSRQs, released several blazar catalogs, used AGN to measure the extragalactic background light and contributed to our understanding of the blazar sequence. Currently there is a major effort underway to completely upgrade the reconstruction and analysis of Fermi LAT data, which will effectively result in an upgraded detector. The resulting data set, called Pass 8, will have a larger acceptance, better PSF at high energies and a wider energy range. These improvements will allow us to better measure the high energy peak of AGN, better constrain AGN variability, and better localize flaring GeV sources. This contribution will detail how these improvements will affect the study of AGN with the LAT.
- Publication:
-
American Astronomical Society Meeting Abstracts #223
- Pub Date:
- January 2014
- Bibcode:
- 2014AAS...22315006P