1.2k citations · 4.5k across the 94 of their papers we have counts for
93 papers
Revisiting Emission-Line Measurement Methods for Narrow-Line Active Galactic Nuclei
Viraja C. Khatu, Sarah C. Gallagher, Keith Horne +16
Measuring broad emission-line widths in active galactic nuclei (AGN) is not straightforward owing to the complex nature of flux variability in these systems. Line-width measurement…
What Is In a Survey? Simulation-Induced Selection Effects in Astronomy
Sarah C. Gallagher, Chris Smeenk
Observational astronomy is plagued with selection effects that must be taken into account when interpreting data from astronomical surveys. Because of the physical limitations of o…
GALFIT-ing AGN Host Galaxies in COSMOS: HST vs. Subaru
Callum Dewsnap, Pauline Barmby, Sarah C. Gallagher +3
The COSMOS field has been extensively observed by most major telescopes, including Chandra, HST, and Subaru. HST imaging boasts very high spatial resolution and is used extensively…
NuSTAR Observations of Intrinsically X-ray Weak Quasar Candidates: An Obscuration-Only Scenario
Chaojun Wang, B. Luo, W. N. Brandt +6
We utilize recent NuSTAR observations (co-added depth -120 ks) of PG , PG , and PHL 1811 to constrain their hard X-ray ( keV) weakness and…
The X-Rays wind connection in PG 2112+059
C. Saez, W. N. Brandt, F. Bauer +4
We study the connection between the X-ray and UV properties of the broad absorption line (BAL) wind in the highly X-ray variable quasar PG 2112+059 by comparing Chandra-ACIS data w…
Extremely broad Lyman-alpha line emission from the molecular intra-group medium in Stephan's Quintet: evidence for a turbulent cascade in a highly clumpy multi-phase medium?
P. Guillard, P. N Appleton, F. Boulanger +8
We present Hubble Space Telescope Cosmic Origin Spectrograph (COS) UV line spectroscopy and integral-field unit (IFU) observations of the intra-group medium in Stephan's Quintet (S…