34 citations · 56 across the 3 of their papers we have counts for
4 papers
MUSE observations of a changing-look AGN I: The re-appearance of the broad emission lines
S. I. Raimundo, M. Vestergaard, J. Y. Koay +3
Optical changing-look Active Galactic Nuclei (AGN) are a class of sources that change type within a short timescale of years or decades. This change is characterised by the appeara…
Quantifying the Diffuse Continuum Contribution of BLR Clouds to AGN Continuum Inter-band Delays
Daniel Lawther, Michael R. Goad, Kirk T. Korista +2
Disk reverberation mapping of a handful of nearby AGN suggest accretion disk sizes which are a factor few too large for their luminosities, apparently at odds with the standard mod…
A catalog of optical to X-ray spectral energy distributions of z~2 quasars observed with Swift. I: First results
Daniel Lawther, Marianne Vestergaard, Sandra Raimundo +1
We present the Swift optical to X-ray spectral energy distributions (SEDs) of 44 quasars at redshifts z~2 observed by Swift, part of a larger program to establish and characterize…
Constraints on the relative sizes of intervening Mg II-absorbing clouds and quasar emitting regions
Daniel Lawther, Troels Paarup, Morten Schmidt +3
Context: A significantly higher incidence of strong (rest equivalent width W_r > 1 Å) intervening Mg II absorption is observed along gamma-ray burst (GRB) sight-lines relative to t…