Journal article
A Luminous and Isolated Gamma-Ray Flare from the Blazar B2 1215+30
The Astrophysical journal, v 836(2)
21 Feb 2017
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
B2 1215+30 is a BL-Lac-type blazar that was first detected at TeV energies by the MAGIC atmospheric Cherenkov telescopes and subsequently confirmed by the Very Energetic Radiation Imaging Telescope Array System (VERITAS) observatory with data collected between 2009 and 2012. In 2014 February 08, VERITAS detected a large-amplitude flare from B2 1215+30 during routine monitoring observations of the blazar 1ES 1218+304, located in the same field of view. The TeV flux reached 2.4 times the Crab Nebula flux with a variability timescale of < 3.6 hr . Multiwavelength observations with Fermi-LAT, Swift, and the Tuorla Observatory revealed a correlated high GeV flux state and no significant optical counterpart to the flare, with a spectral energy distribution where the gamma-ray luminosity exceeds the synchrotron luminosity. When interpreted in the framework of a one-zone leptonic model, the observed emission implies a high degree of beaming, with Doppler factor δ > 10 , and an electron population with spectral index p < 2.3 .
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Details
- Title
- A Luminous and Isolated Gamma-Ray Flare from the Blazar B2 1215+30
- Creators
- A. U Abeysekara - University of UtahS Archambault - McGill UniversityA Archer - Washington University in St. LouisW Benbow - Harvard UniversityR Bird - University College DublinM Buchovecky - University of California, Los AngelesJ. H Buckley - Washington University in St. LouisV Bugaev - Washington University in St. LouisK Byrum - Argonne National LaboratoryM Cerruti - Harvard UniversityX Chen - University of PotsdamL Ciupik - Adler PlanetariumW Cui - Tsinghua UniversityH. J Dickinson - Iowa State UniversityJ. D Eisch - Iowa State UniversityM Errando - Columbia UniversityA Falcone - Pennsylvania State UniversityQ Feng - Purdue University West LafayetteJ. P Finley - Purdue University West LafayetteH Fleischhack - DESY, Platanenallee 6, D-15738 Zeuthen, GermanyL Fortson - University of MinnesotaA Furniss - California State University, East BayG. H Gillanders - National University of Ireland, GalwayS Griffin - McGill UniversityJ Grube - Adler PlanetariumM Hütten - DESY, Platanenallee 6, D-15738 Zeuthen, GermanyN Håkansson - University of PotsdamD Hanna - McGill UniversityJ Holder - University of DelawareT. B Humensky - Columbia UniversityC. A Johnson - University of California, Santa CruzP Kaaret - University of IowaP Kar - University of UtahM Kertzman - DePauw UniversityD Kieda - University of UtahM Krause - DESY, Platanenallee 6, D-15738 Zeuthen, GermanyF Krennrich - Iowa State UniversityS Kumar - University of DelawareM. J Lang - National University of Ireland, GalwayG Maier - DESY, Platanenallee 6, D-15738 Zeuthen, GermanyS McArthur - Purdue University West LafayetteA McCann - McGill UniversityK Meagher - Georgia Institute of TechnologyP Moriarty - National University of Ireland, GalwayR Mukherjee - Columbia UniversityT Nguyen - Georgia Institute of TechnologyD Nieto - Columbia UniversityR. A Ong - University of California, Los AngelesA. N Otte - Georgia Institute of TechnologyN Park - University of ChicagoV Pelassa - Harvard UniversityM Pohl - University of PotsdamA Popkow - University of California, Los AngelesE Pueschel - University College DublinJ Quinn - University College DublinK Ragan - McGill UniversityP. T Reynolds - Cork Institute of TechnologyG. T Richards - Georgia Institute of TechnologyE Roache - Harvard UniversityC Rulten - University of MinnesotaM Santander - Columbia UniversityG. H Sembroski - Purdue University West LafayetteK Shahinyan - University of MinnesotaD Staszak - University of ChicagoI Telezhinsky - University of PotsdamJ. V Tucci - Purdue University West LafayetteJ Tyler - McGill UniversityS. P Wakely - University of ChicagoO. M Weiner - Columbia UniversityA Weinstein - Iowa State University Department of Physics and Astronomy, Ames, IA 50011, USAA Wilhelm - University of PotsdamD. A Williams - University of California, Santa CruzS Fegan - University of Paris-SaclayB Giebels - University of Paris-SaclayD Horan - University of Paris-SaclayA Berdyugin - University of TurkuJ Kuan - Columbia UniversityE Lindfors - University of TurkuK Nilsson - University of TurkuA Oksanen - Nyrola observatory, Jyvaskylan Sirius ry, FinlandH Prokoph - Linnaeus UniversityR Reinthal - University of TurkuL Takalo - University of TurkuF Zefi - University of Paris-SaclayVERITAS Collaboration
- Publication Details
- The Astrophysical journal, v 836(2)
- Publisher
- The American Astronomical Society
- Number of pages
- 6
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:000395797900021
- Scopus ID
- 2-s2.0-85014395755
- Other Identifier
- 991019201501004721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Astronomy & Astrophysics