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
Book Volume: 718
Pages Range: L166-L170
Journal Issue: 2
DOI: 10.1088/2041-8205/718/2/L166
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.
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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