Journal article
Discovery of Very-high-energy Emission from RGB J2243+203 and Derivation of Its Redshift Upper Limit
The Astrophysical journal. Supplement series, Vol.233(1), p.7
11/10/2017
DOI: 10.3847/1538-4365/aa8d76
Abstract
Very-high-energy (VHE; > 100 GeV) gamma-ray emission from the blazar RGB J2243+203 was discovered with the VERITAS Cherenkov telescope array, during the period between 2014 December 21 and 24. The VERITAS energy spectrum from this source can be fitted by a power law with a photon index of 4.6 0.5, and a flux normalization at 0.15 TeV of . The integrated Fermi-LAT flux from 1 to 100 GeV during the VERITAS detection is , which is an order of magnitude larger than the four-year-averaged flux in the same energy range reported in the 3FGL catalog, ( ). The detection with VERITAS triggered observations in the X-ray band with the Swift-XRT. However, due to scheduling constraints Swift-XRT observations were performed 67 hr after the VERITAS detection, rather than simultaneously with the VERITAS observations. The observed X-ray energy spectrum between 2 and 10 keV can be fitted with a power law with a spectral index of 2.7 0.2, and the integrated photon flux in the same energy band is . EBL-model-dependent upper limits of the blazar redshift have been derived. Depending on the EBL model used, the upper limit varies in the range from z to z .
Details
- Title: Subtitle
- Discovery of Very-high-energy Emission from RGB J2243+203 and Derivation of Its Redshift Upper Limit
- Creators
- A. U Abeysekara - University of UtahS Archambault - McGill UniversityA Archer - Washington University in St. LouisW Benbow - Harvard UniversityR Bird - University of California, Los AngelesR Brose - University of PotsdamM Buchovecky - University of California, Los AngelesJ. H Buckley - Washington University in St. LouisV Bugaev - Washington University in St. LouisM Cerruti - Harvard UniversityM. P Connolly - Ollscoil na Gaillimhe – University of GalwayW Cui - Purdue University West LafayetteA Falcone - Pennsylvania State UniversityQ Feng - McGill UniversityJ. 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 - Ollscoil na Gaillimhe – University of GalwayS Griffin - McGill UniversityJ Grube - Stevens Institute of TechnologyM Hütten - DESY, Platanenallee 6, D-15738 Zeuthen, GermanyD Hanna - McGill UniversityO Hervet - University of California, Santa CruzJ Holder - University of DelawareT. B Humensky - Columbia UniversityC. A Johnson - University of California, Santa CruzP Kaaret - University of IowaP Kar - University of UtahN Kelley-Hoskins - DESY, Platanenallee 6, D-15738 Zeuthen, GermanyM 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 - Ollscoil na Gaillimhe – University of GalwayG Maier - DESY, Platanenallee 6, D-15738 Zeuthen, GermanyS McArthur - Purdue University West LafayetteP Moriarty - Ollscoil na Gaillimhe – University of GalwayR Mukherjee - Columbia UniversityD Nieto - Columbia UniversityS O'Brien - University College DublinR. A Ong - University of California, Los AngelesA. N Otte - Georgia Institute of TechnologyN Park - University of ChicagoA Petrashyk - Columbia UniversityM Pohl - University of PotsdamA Popkow - University of California, Los AngelesE Pueschel - DESY, Platanenallee 6, D-15738 Zeuthen, GermanyJ 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 MinnesotaI Sadeh - DESY, Platanenallee 6, D-15738 Zeuthen, GermanyM Santander - Columbia UniversityG. H Sembroski - Purdue University West LafayetteK Shahinyan - University of MinnesotaD Staszak - University of ChicagoI Telezhinsky - University of PotsdamJ Tyler - McGill UniversityV. V Vassiliev - University of California, Los AngelesS. P Wakely - University of ChicagoO. M Weiner - Columbia UniversityA Weinstein - Iowa State UniversityP Wilcox - University of IowaA Wilhelm - University of PotsdamD. A Williams - University of California, Santa CruzB Zitzer - McGill University
- Resource Type
- Journal article
- Publication Details
- The Astrophysical journal. Supplement series, Vol.233(1), p.7
- DOI
- 10.3847/1538-4365/aa8d76
- ISSN
- 0067-0049
- eISSN
- 1538-4365
- Publisher
- The American Astronomical Society
- Number of pages
- 6
- Language
- English
- Date published
- 11/10/2017
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199687702771
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