Due to technical problems on the CERN SSO system, logging in is currently failing intermittently.
July 29, 2015 to August 6, 2015
World Forum
Europe/Amsterdam timezone

The Detection of Fermi AGN above 100 GeV using Clustering Analysis

Aug 1, 2015, 12:00 PM
15m
Yangtze 1 (World Forum)

Yangtze 1

World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Oral contribution GA-EX Parallel GA08 EGAL

Speaker

Mr Thomas Armstrong (Department of Physics, University of Durham, South Road, Du rham, DH1 3LE, UK)

Description

The 6-year *Fermi* data set contains some 8000 extragalactic events with E > 100GeV. To search fo the sources of these events, we applied a clustering algorithm (DBSCAN), using a search radius based on the *Fermi*-LAT point spread function, to events from > 10 degrees above and below the Galactic plane. This analysis revealed 49 significant clusters. Of these, 21 correspond to known Very High Energy (VHE) emitting Active Galactic Nuclei (AGN) in the TeVCat catalogue and 9 represent new VHE sources – 6 BL-Lacs, one blazar of unknown type and two unidentified sources. These objects are compared with the known VHE AGN population and the prospects for follow-up observations with ground based $\gamma$-ray observatories are considered.
Registration number following "ICRC2015-I/" 202
Collaboration -- not specified --

Primary author

Mr Thomas Armstrong (Department of Physics, University of Durham, South Road, Du rham, DH1 3LE, UK)

Co-authors

Dr Anthony Brown (Department of Physics, University of Durham, South Road, Du rham, DH1 3LE, UK) Prof. Paula Chadwick (Department of Physics, University of Durham, South Road, Du rham, DH1 3LE, UK) Dr Sam Nolan (Department of Physics, University of Durham, South Road, Du rham, DH1 3LE, UK)

Presentation materials

There are no materials yet.