845 citations · 13.3k across the 227 of their papers we have counts for
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Multiwavelength observations of the gamma-ray emitting narrow-line Seyfert 1 PMN J0948+0022 in 2011
F. D'Ammando, J. Larsson, M. Orienti +13
We report on radio-to-gamma-ray observations during 2011 May-September of PMN J0948+0022, the first narrow-line Seyfert 1 (NLSy1) galaxy detected in gamma-rays by Fermi-LAT. Strong…
Connecting radio variability to the characteristics of gamma-ray blazars
Joseph L. Richards, Talvikki Hovatta, Walter Max-Moerbeck +3
We present results from four years of twice-weekly 15 GHz radio monitoring of about 1500 blazars with the Owens Valley Radio Observatory 40 m telescope. Using the intrinsic modulat…
A Multi-wavelength Study of the Host Environment of SMBHB 4C+37.11
Roger W. Romani, W. R. Forman, Christine Jones +4
4C+37.11, at z=0.055 shows two compact radio nuclei, imaged by VLBI at 7mas separation, making it the closest known resolved super-massive black hole binary (SMBHB). An important q…
The RoboPol optical polarization survey of gamma-ray - loud blazars
V. Pavlidou, E. Angelakis, I. Myserlis +23
We present first results from RoboPol, a novel-design optical polarimeter operating at the Skinakas Observatory in Crete. The data, taken during the May - June 2013 commissioning o…
MAGIC observations and multifrequency properties of the Flat Spectrum Radio Quasar 3C 279 in 2011
J. Aleksić, S. Ansoldi, L. A. Antonelli +168
We study the multifrequency emission and spectral properties of the quasar 3C 279. We observed 3C 279 in very high energy (VHE, E>100GeV) gamma rays, with the MAGIC telescopes duri…
The RoboPol Pipeline and Control System
O. G. King, D. Blinov, A. N. Ramaprakash +26
We describe the data reduction pipeline and control system for the RoboPol project. The RoboPol project is monitoring the optical -band magnitude and linear polarization of a la…
The Cosmic Evolution of Fermi BL Lacertae Objects
M. Ajello, R. W. Romani, D. Gasparrini +14
Fermi has provided the largest sample of gamma-ray selected blazars to date. In this work we use a uniformly selected set of 211 BL Lacertae (BL Lac) objects detected by it Fermi d…
An Exceptional Radio Flare in Markarian 421
Joseph L. Richards, Talvikki Hovatta, Matthew L. Lister +9
In September 2012, the high-synchrotron-peaked (HSP) blazar Markarian 421 underwent a rapid wideband radio flare, reaching nearly twice the brightest level observed in the centimet…
A quasi-periodic oscillation in the blazar J1359+4011
O. G. King, T. Hovatta, W. Max-Moerbeck +6
The OVRO 40-m telescope has been monitoring the 15 GHz radio flux density of over 1200 blazars since 2008. The 15 GHz light curve of the flat spectrum radio quasar J1359+4011 shows…
Locating the Gamma-ray Flaring Emission of Blazar AO 0235+164 in the Jet at Parsec Scales Through Multi Spectral Range Monitoring
Ivan Agudo, Alan P. Marscher, Svetlana G. Jorstad +12
We present observations of a major outburst at centimeter, millimeter, optical, X-ray, and gamma-ray wavelengths of the BL Lacertae object AO 0235+164 in 2008. We analyze the timin…
Radio to gamma-ray variability study of blazar S5 0716+714
B. Rani, T. P. Krichbaum, L. Fuhrmann +34
We present the results of a series of radio, optical, X-ray and gamma-ray observations of the BL Lac object S50716+714 carried out between April 2007 and January 2011. The multi-fr…
Spectroscopy of The Largest Ever Gamma-ray Selected BL Lac Sample
Michael S. Shaw, Roger W. Romani, Garret Cotter +7
We report on spectroscopic observations covering most of the 475 BL Lacs in the 2nd Fermi LAT catalog of AGN. Including archival measurements (correcting several erroneous literatu…