24 citations · 80 across the 5 of their papers we have counts for
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astro-ph.GA2018
The Changing-Look Quasar Mrk 590 is Awakening
S. Mathur, K. D. Denney, A. Gupta +9
Mrk 590 was originally classified as a Seyfert 1 galaxy, but then it underwent dramatic changes: the nuclear luminosity dropped by over two orders of magnitude and the broad emissi…
astro-ph.GA2016
Physical properties and the variability mechanism of the He I outflow in NGC 4151
Conor Wildy, Hermine Landt, Michael R. Goad +2
We report on variable helium absorption lines in NGC 4151 observed across six epochs of quasi-simultaneous near-infrared and optical data. These observations cover the transitions…