Journal article
SPECTRAL ENERGY DISTRIBUTION OF MARKARIAN 501: QUIESCENT STATE VERSUS EXTREME OUTBURST
The Astrophysical journal, Vol.729(1), p.2
2011
DOI: 10.1088/0004-637X/729/1/2
Abstract
The very high energy (VHE; E > 100 GeV) blazar Markarian 501 (Mrk 501) has a well-studied history of extreme spectral variability and is an excellent laboratory for studying the physical processes within the jets of active galactic nuclei. However, there are few detailed multiwavelength studies of Mrk 501 during its quiescent state, due to its low luminosity. A short-term multiwavelength study of Mrk 501 was coordinated in 2009 March, focusing around a multi-day observation with the Suzaku X-ray satellite and including γ-ray data from VERITAS, MAGIC, and the Fermi Gamma-ray Space Telescope with the goal of providing a well-sampled multiwavelength baseline measurement of Mrk 501 in the quiescent state. The results of these quiescent-state observations are compared to the historically extreme outburst of 1997 April 16, with the goal of examining variability of the spectral energy distribution (SED) between the two states. The derived broadband SED shows the characteristic double-peaked profile. We find that the X-ray peak shifts by over two orders of magnitude in photon energy between the two flux states while the VHE peak varies little. The limited shift in the VHE peak can be explained by the transition to the Klein–Nishina (KN) regime. Synchrotron self-Compton models are matched to the data and the implied KN effects are explored.
Details
- Title: Subtitle
- SPECTRAL ENERGY DISTRIBUTION OF MARKARIAN 501: QUIESCENT STATE VERSUS EXTREME OUTBURST
- Creators
- V. A Acciari - Harvard UniversityT Arlen - University of California, Los AngelesA Cannon - University College DublinA Cesarini - Ollscoil na Gaillimhe – University of GalwayL Ciupik - Adler PlanetariumW Cui - Purdue University West LafayetteR Dickherber - Washington University in St. LouisC Duke - Grinnell CollegeM Errando - Columbia UniversityA Falcone - Pennsylvania State UniversityJ. P Finley - Purdue University West LafayetteG Finnegan - University of UtahT Aune - University of California, Santa CruzL Fortson - Adler PlanetariumA Furniss - University of California, Santa CruzN Galante - Harvard UniversityD Gall - University of IowaS Godambe - University of UtahJ Grube - Adler PlanetariumR Guenette - McGill UniversityG Gyuk - Adler PlanetariumD Hanna - McGill UniversityJ Holder - University of DelawareM Beilicke - Washington University in St. LouisD Huang - Pittsburg State UniversityC. M Hui - University of UtahT. B Humensky - University of ChicagoA Imran - Iowa State UniversityP Kaaret - University of IowaN Karlsson - Adler PlanetariumM Kertzman - DePauw UniversityD Kieda - University of UtahA Konopelko - Pittsburg State UniversityH Krawczynski - Washington University in St. LouisW Benbow - Harvard UniversityF Krennrich - Iowa State UniversityA. S Madhavan - Iowa State UniversityG Maier - McGill UniversityS Mcarthur - Washington University in St. LouisA Mccann - McGill UniversityP Moriarty - Galway-Mayo Institute of TechnologyR. A Ong - University of California, Los AngelesA. N Otte - University of California, Santa CruzD Pandel - University of IowaJ. S Perkins - Harvard UniversityM Böttcher - Ohio UniversityA Pichel - Universidad de Buenos AiresM Pohl - Universidad de Buenos AiresJ Quinn - University College DublinK Ragan - McGill UniversityL. C Reyes - University of ChicagoP. T Reynolds - Cork Institute of TechnologyE Roache - Harvard UniversityH. J Rose - University of LeedsM Schroedter - Iowa State UniversityG. H Sembroski - Purdue University West LafayetteD Boltuch - University of DelawareS. M Bradbury - University of LeedsJ. H Buckley - Washington University in St. LouisVERITAS CollaborationV Bugaev - Washington University in St. Louis
- Resource Type
- Journal article
- Publication Details
- The Astrophysical journal, Vol.729(1), p.2
- DOI
- 10.1088/0004-637X/729/1/2
- ISSN
- 0004-637X
- eISSN
- 1538-4357
- Publisher
- Institute of Physics (IOP)
- Language
- English
- Date published
- 2011
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199762102771
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