264 citations · 817 across the 22 of their papers we have counts for
4 papers · 1 filter
An Active Galactic Nucleus Caught in the Act of Turning Off and On
Julia M. Comerford, R. Scott Barrows, Francisco Müller-Sánchez +5
We present the discovery of an active galactic nucleus (AGN) that is turning off and then on again in the z=0.06 galaxy SDSS J1354+1327. This episodic nuclear activity is the resul…
Shocks and Spatially Offset Active Galactic Nuclei Produce Velocity Offsets in Emission Lines
Julia M. Comerford, R. Scott Barrows, Jenny E. Greene +1
While 2% of active galactic nuclei (AGNs) exhibit narrow emission lines with line-of-sight velocities that are significantly offset from the velocity of the host galaxy's stars, th…
Sumo Puff: Tidal Debris or Disturbed Ultra-Diffuse Galaxy?
Johnny P. Greco, Jenny E. Greene, Adrian M. Price-Whelan +10
We report the discovery of a diffuse stellar cloud with an angular extent , which we term "Sumo Puff", in data from the Hyper Suprime-Cam Subaru Strategic…
Space Telescope and Optical Reverberation Mapping Project. VII. Understanding the UV anomaly in NGC 5548 with X-Ray Spectroscopy
S. Mathur, A. Gupta, K. Page +147
During the Space Telescope and Optical Reverberation Mapping Project (STORM) observations of NGC 5548, the continuum and emission-line variability became de-correlated during the s…