134 citations · 240 across the 6 of their papers we have counts for
12 papers
Kinematics of Parsec-Scale Jets of Gamma-Ray Bright Blazars at 43 GHz during Ten Years of the VLBA-BU-BLAZAR Program
Zachary R. Weaver, Svetlana G. Jorstad, Alan P. Marscher +7
We analyze the parsec-scale jet kinematics from 2007 June to 2018 December of a sample of -ray bright blazars monitored roughly monthly with the Very Long Baseline Array at 43 G…
New jet feature in the parsec-scale jet of the blazar OJ287 connected to the 2017 teraelectronvolt flaring activity
R. Lico, C. Casadio, S. G. Jorstad +16
In February 2017 the blazar OJ287, one of the best super-massive binary-black-hole-system candidates, was detected for the first time at very high energies (VHEs; E>100GeV) with th…
Emission Line Variability during a Nonthermal Outburst in the Gamma-Ray Bright Quasar 1156+295
Melissa K. Hallum, Svetlana G. Jorstad, Valeri M. Larionov +18
We present multi-epoch optical spectra of the -ray bright blazar 1156+295 (4C +29.45, Ton 599) obtained with the 4.3~m Lowell Discovery Telescope. During a multi-wavelength outb…
The complex variability of blazars: Time-scales and periodicity analysis in S4 0954+65
C. M. Raiteri, M. Villata, V. M. Larionov +3
Among active galactic nuclei, blazars show extreme variability properties. We here investigate the case of the BL Lac object S4 0954+65 with data acquired in 2019-2020 by the Trans…
The jet collimation profile at high resolution in BL Lacertae
C. Casadio, N. R. MacDonald, B. Boccardi +14
Controversial studies on the jet collimation profile of BL Lacertae (BL Lac), the eponymous blazar of BL Lac objects class, complicate the scenario in this already puzzling class o…
GRB 191016A: A Long Gamma-Ray Burst Detected by TESS
Krista Lynne Smith, Ryan Ridden-Harper, Michael Fausnaugh +8
The TESS exoplanet-hunting mission detected the rising and decaying optical afterglow of GRB 191016A, a long Gamma-Ray Burst (GRB) detected by Swift-BAT but without prompt XRT or U…