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The challenging SED of AP Librae

Published online by Cambridge University Press:  17 August 2012

David Sanchez ,
Berrie Giebels  and
Pascal Fortin
David Sanchez
Affiliation:
Max Planck Institut fr Kernphysik, Heidelberg
Berrie Giebels
Affiliation:
LLR/Ecole Polytechnique/CNRS/IN2P3, email: [email protected], [email protected], [email protected]
Pascal Fortin
Affiliation:
LLR/Ecole Polytechnique/CNRS/IN2P3, email: [email protected], [email protected], [email protected]
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Abstract

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Matching the broad-band emission of active galaxies with the predictions of theoretical models can be used to derive constraints on the properties of the emitting region and to probe the physical processes involved. AP Librae is the third low frequency peaked BL Lac (LBL) detected at very high energy (VHE, E>100GeV) by an Atmospheric Cherenkov Telescope; most VHE BL Lacs (34 out of 39) belong to the high-frequency and intermediate-frequency BL Lac classes (HBL and IBL). LBL objects tend to have a higher luminosity with lower peak frequencies than HBLs or IBLs. The characterization of their time-averaged spectral energy distribution is challenging for emission models such as synchrotron self-Compton (SSC) models.

Keywords

gamma rays: observationsgalaxies: activeBL Lacertae objects: individual
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S284: The Spectral Energy Distribution of Galaxies , September 2011 , pp. 411 - 413
Copyright
Copyright © International Astronomical Union 2012

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