581 citations · 5.2k across the 118 of their papers we have counts for
7 papers · 1 filter
Active Galaxy Science in the LSST Deep-Drilling Fields: Footprints, Cadence Requirements, and Total-Depth Requirements
W. N. Brandt, Q. Ni, G. Yang +25
This white paper specifies the footprints, cadence requirements, and total-depth requirements needed to allow the most-successful AGN studies in the four currently selected LSST De…
Broad absorption line disappearance/emergence in multiple ions in a weak emission-line quasar
Weimin Yi, M. Vivek, W. N. Brandt +9
We report the discovery of disappearance of Mg ii, Al iii, C iv, and Si iv broad absorption lines (BALs) at the same velocity, accompanied by a new Civ BAL emerging at a higher vel…
Variability-selected low-luminosity active galactic nuclei candidates in the 7 Ms Chandra Deep Field-South
N. Ding, B. Luo, W. N. Brandt +13
In deep X-ray surveys, active galactic nuclei (AGNs) with a broad range of luminosities have been identified. However, cosmologically distant low-luminosity AGN (LLAGN, $L_{\mathrm…
Does black-hole growth depend on the cosmic environment?
Guang Yang, W. N. Brandt, B. Darvish +5
It is well known that environment affects galaxy evolution, which is broadly related to supermassive black hole (SMBH) growth. We investigate whether SMBH evolution also depends on…
No evidence for an Eddington-ratio dependence of X-ray weakness in BALQSOs
Fabio Vito, William Nielsen Brandt, Bin Luo +3
Several works have studied the relation between X-ray, UV, and wind properties in broad absorption line quasars (BALQSOs), generally concluding that the formation of strong winds i…
The XMM-SERVS survey: new XMM-Newton point-source catalog for the XMM-LSS field
C. -T. J. Chen, W. N. Brandt, B. Luo +28
We present an X-ray point-source catalog from the XMM-Large Scale Structure survey region (XMM-LSS), one of the XMM-Spitzer Extragalactic Representative Volume Survey (XMM-SERVS) f…
The 500 ks Chandra observation of the z = 6.31 QSO SDSS J1030+0524
R. Nanni, R. Gilli, C. Vignali +23
We present the results from a ks Chandra observation of the QSO SDSS J1030+0524. This is the deepest X-ray observation to date of a QSO. The QSO is dete…