DISCOVERY OF A GeV BLAZAR SHINING THROUGH THE GALACTIC PLANE
Vandenbroucke J, Buehler R, Ajello M, Bechtol K, Bellini A, Bolte M, Cheung CC, Civano F, Donato D, Fuhrmann L, Funk S, Healey SE, Hill AB, Knigge C, Madejski GM, Romani RW, Santander-Garcia M, Shaw MS, Steeghs DT, Torres MAP, Van Etten A, Williams KA (2010)
Publication Type: Journal article
Publication year: 2010
Journal
Book Volume: 718
Pages Range: L166-L170
Journal Issue: 2
DOI: 10.1088/2041-8205/718/2/L166
Abstract
The Fermi Large Area Telescope (LAT) discovered a new gamma-ray source near the Galactic plane, Fermi J0109+6134, when it flared brightly in 2010 February. The low Galactic latitude (b = -1 degrees.2) indicated that the source could be located within the Galaxy, which motivated rapid multi-wavelength follow-up including radio, optical, and X-ray observations. We report the results of analyzing all 19 months of LAT data for the source, and of X-ray observations with both Swift and the Chandra X-ray Observatory. We determined the source redshift, z = 0.783, using a Keck Low-Resolution Imaging Spectrometer observation. Finally, we compiled a broadband spectral energy distribution (SED) from both historical and new observations contemporaneous with the 2010 February flare. The redshift, SED, optical line width, X-ray absorption, and multi-band variability indicate that this new GeV source is a blazar seen through the Galactic plane. Because several of the optical emission lines have equivalent width > 5 angstrom, this blazar belongs in the flat-spectrum radio quasar category.
Authors with CRIS profile
Involved external institutions
Stanford University
United States (USA) (US)
University of Padua / Universita degli Studi di Padova
Italy (IT)
University of California Santa Cruz
United States (USA) (US)
U.S. Naval Research Laboratory
United States (USA) (US)
Harvard University
United States (USA) (US)
National Aeronautics and Space Administration (NASA)
United States (USA) (US)
Max-Planck-Institut für Radioastronomie / Max Planck Institute for Radio Astronomy
Germany (DE)
Université Joseph Fourier (UJF Grenoble 1)
France (FR)
University of Southampton
United Kingdom (GB)
Instituto de Astrofísica de Canarias (IAC)
Spain (ES)
University of Warwick
United Kingdom (GB)
University of Texas at Austin
United States (USA) (US)
United States (USA) (US)
University of Padua / Universita degli Studi di Padova
Italy (IT)
University of California Santa Cruz
United States (USA) (US)
U.S. Naval Research Laboratory
United States (USA) (US)
Harvard University
United States (USA) (US)
National Aeronautics and Space Administration (NASA)
United States (USA) (US)
Max-Planck-Institut für Radioastronomie / Max Planck Institute for Radio Astronomy
Germany (DE)
Université Joseph Fourier (UJF Grenoble 1)
France (FR)
University of Southampton
United Kingdom (GB)
Instituto de Astrofísica de Canarias (IAC)
Spain (ES)
University of Warwick
United Kingdom (GB)
University of Texas at Austin
United States (USA) (US)
How to cite
APA:
Vandenbroucke, J., Buehler, R., Ajello, M., Bechtol, K., Bellini, A., Bolte, M.,... Williams, K.A. (2010). DISCOVERY OF A GeV BLAZAR SHINING THROUGH THE GALACTIC PLANE. Astrophysical Journal Letters, 718(2), L166-L170. https://doi.org/10.1088/2041-8205/718/2/L166
MLA:
Vandenbroucke, J., et al. "DISCOVERY OF A GeV BLAZAR SHINING THROUGH THE GALACTIC PLANE." Astrophysical Journal Letters 718.2 (2010): L166-L170.
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