Journal article
The Discovery of gamma-Ray Emission From The Blazar RGB J0710+591
Astrophysical journal. Letters, Vol.715(1), pp.L49-L55
05/20/2010
DOI: 10.1088/2041-8205/715/1/L49
Abstract
The high-frequency-peaked BL Lacertae object RGB J0710+591 was observed in the very high-energy (VHE; E > 100 GeV) wave band by the VERITAS array of atmospheric Cherenkov telescopes. The observations, taken between 2008 December and 2009 March and totaling 22.1 hr, yield the discovery of VHE gamma rays from the source. RGB J0710+591 is detected at a statistical significance of 5.5 standard deviations (5.5{\sigma}) above the background, corresponding to an integral flux of (3.9 +/- 0.8) x 10-12 cm-2 s-1 (3% of the Crab Nebula's flux) above 300 GeV. The observed spectrum can be fit by a power law from 0.31 to 4.6 TeV with a photon spectral index of 2.69 +/- 0.26stat +/- 0.20sys. These data are complemented by contemporaneous multiwavelength data from the Fermi Large Area Telescope, the Swift X-ray Telescope, the Swift Ultra-Violet and Optical Telescope, and the Michigan-Dartmouth-MIT observatory. Modeling the broadband spectral energy distribution (SED) with an equilibrium synchrotron self-Compton model yields a good statistical fit to the data. The addition of an external-Compton component to the model does not improve the fit nor brings the system closer to equipartition. The combined Fermi and VERITAS data constrain the properties of the high-energy emission component of the source over 4 orders of magnitude and give measurements of the rising and falling sections of the SED.
Details
- Title: Subtitle
- The Discovery of gamma-Ray Emission From The Blazar RGB J0710+591
- Creators
- V. A Acciari - Harvard UniversityE Aliu - Barnard CollegeT Arlen - University of California, Los AngelesT Aune - University of California, Santa CruzM Bautista - McGill UniversityM Beilicke - Washington University in St. LouisW Benbow - Harvard UniversityM Böttcher - Ohio UniversityD Boltuch - University of DelawareS. M Bradbury - University of LeedsJ. H Buckley - Washington University in St. LouisV Bugaev - Washington University in St. LouisK Byrum - Argonne National LaboratoryA 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 CollegeA Falcone - Pennsylvania State UniversityJ. P Finley - Purdue University West LafayetteG Finnegan - University of UtahL Fortson - Adler PlanetariumA Furniss - University of California, Santa CruzN Galante - Harvard UniversityD Gall - Purdue University West LafayetteK Gibbs - Harvard UniversityG. H Gillanders - Ollscoil na Gaillimhe – University of GalwayS Godambe - University of UtahJ Grube - University College DublinR Guenette - McGill UniversityG Gyuk - Adler PlanetariumD Hanna - McGill UniversityJ Holder - University of DelawareC. 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. LouisF Krennrich - Iowa State UniversityM. J Lang - Ollscoil na Gaillimhe – University of GalwayA Lamerato - Ohio UniversityS Lebohec - University of UtahG Maier - McGill UniversityS Mcarthur - Washington University in St. LouisA Mccann - McGill UniversityM Mccutcheon - McGill UniversityP Moriarty - Galway-Mayo Institute of TechnologyR Mukherjee - Barnard CollegeR. A Ong - University of California, Los AngelesA. N Otte - University of California, Santa CruzD Pandel - University of IowaJ. S Perkins - Harvard UniversityD Petry - European Southern ObservatoryA Pichel - Universidad de Buenos AiresM Pohl - Iowa State UniversityJ Quinn - University College DublinK Ragan - McGill UniversityL. C Reyes - University of ChicagoP. T ReynoldsE Roache - Harvard UniversityH. J Rose - University of LeedsP Roustazadeh - Ohio UniversityM Schroedter - Iowa State UniversityG. H Sembroski - Purdue University West LafayetteG. Demet Senturk - Columbia UniversityA. W Smith - Argonne National LaboratoryD Steele - Adler PlanetariumS. P Swordy - University of ChicagoG Tešić - McGill UniversityM Theiling - Harvard UniversityS Thibadeau - Washington University in St. LouisA Varlotta - Purdue University West LafayetteV. V Vassiliev - University of California, Los AngelesSerge Vincent - University of UtahR. G Wagner - Argonne National LaboratoryS. P Wakely - University of ChicagoJ. E Ward - University College DublinT. C Weekes - Harvard UniversityA Weinstein - University of California, Los AngelesT Weisgarber - University of ChicagoD. A Williams - University of California, Santa CruzS Wissel - University of ChicagoM Wood - University of California, Los AngelesB Zitzer - Purdue University West LafayetteMarkus Ackermann - Stanford UniversityMarco Ajello - Stanford UniversityE Antolini - University of PerugiaLuca BaldiniJean Ballet - Astrophysique Interprétation ModélisationGuido Barbiellini - University of TriesteD Bastieri - University of PaduaK Bechtol - Stanford UniversityR BellazziniB Berenji - Stanford UniversityR. D Blandford - Stanford University
- Resource Type
- Journal article
- Publication Details
- Astrophysical journal. Letters, Vol.715(1), pp.L49-L55
- DOI
- 10.1088/2041-8205/715/1/L49
- ISSN
- 2041-8205
- eISSN
- 2041-8213
- Publisher
- The American Astronomical Society
- Language
- English
- Date published
- 05/20/2010
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199840502771
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