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X-ray spectra reveal the reawakening of the repeat changing-look AGN NGC 1566
M. L. Parker, N. Schartel, D. Grupe +6
We present simultaneous XMM-Newton and NuSTAR observations of the repeat changing-look AGN NGC 1566, which dramatically increased in brightness in the IR to X-ray bands in 2018. Th…
The First Swift Intensive AGN Accretion Disk Reverberation Mapping Survey
R. Edelson, J. Gelbord, E. Cackett +32
Swift intensive accretion disk reverberation mapping of four AGN yielded light curves sampled 200-350 times in 0.3-10 keV X-ray and six UV/optical bands. Uniform reduction an…
Strongly Bipolar Inner Ejecta of the Normal Type IIP Supernova ASASSN-16at
Subhash Bose, Subo Dong, N. Elias-Rosa +24
We report distinctly double-peakedH-alpha and H-beta emission lines in the late-time, nebular-phase spectra (>~200 d) of the otherwise normal at early phases (<~ 100 d) Type IIP su…
High cadence, linear and circular polarization monitoring of OJ 287 - Helical magnetic field in a bent jet
I. Myserlis, S. Komossa, E. Angelakis +5
We present a multi-frequency, dense radio monitoring program of the blazar OJ287 using the 100m Effelsberg radio telescope. We analyze the evolution in total flux density, linear a…
Eleven years of monitoring the Seyfert 1 Mrk 335 with Swift: Characterizing the X-ray and UV/optical variability
L. C. Gallo, D. M. Blue, D. Grupe +2
The narrow-line Seyfert 1 galaxy (NLS1) Mrk 335 has been continuously monitored with Swift since May 2007 when it fell into a long-lasting, X-ray low-flux interval. Results from th…