B. Matthews

activity

20202025

most citedPlacing High-Redshift Quasars in Perspective: a Catalog of Spectroscopic Properties from the Gemini Near Infrared Spectrograph -- Distant Quasar Survey

24 citations · 77 across the 9 of their papers we have counts for

collaborators

Showing 2023Show all

3 papers · 1 filter

astro-ph.GA2023★ 13 cited

Gemini Near Infrared Spectrograph -- Distant Quasar Survey: Augmented Spectroscopic Catalog and a Prescription for Correcting UV-Based Quasar Redshifts

Brandon M. Matthews, Cooper Dix, Ohad Shemmer +13

Quasars at $z ≳ 1$ most often have redshifts measured from rest-frame ultraviolet emission lines. One of the most common such lines, C IV $λ 1549$ , shows blueshifts up to ${…

astro-ph.GA2023★ 13 cited

Shedding New Light on Weak Emission-Line Quasars in the C $_{IV}$ -H $β$ Parameter Space

Trung Ha, Cooper Dix, Brandon M. Matthews +20

Weak emission-line quasars (WLQs) are a subset of Type 1 quasars that exhibit extremely weak Ly $α +$ N V $λ$ 1240 and/or C IV $λ$ 1549 emission lines. We investigate the relationship b…

astro-ph.GA2023★ 8 cited

Gemini Near Infrared Spectrograph - Distant Quasar Survey: Prescriptions for Calibrating UV-Based Estimates of Supermassive Black Hole Masses in High-Redshift Quasars

Cooper Dix, Brandon Matthews, Ohad Shemmer +10

The most reliable single-epoch supermassive black hole mass ( $M_{BH}$ ) estimates in quasars are obtained by using the velocity widths of low-ionization emission lines, typicall…

Gemini Near Infrared Spectrograph -- Distant Quasar Survey: Augmented Spectroscopic Catalog and a Prescription for Correcting UV-Based Quasar Redshifts

Shedding New Light on Weak Emission-Line Quasars in the CIV​-Hβ Parameter Space

Gemini Near Infrared Spectrograph - Distant Quasar Survey: Prescriptions for Calibrating UV-Based Estimates of Supermassive Black Hole Masses in High-Redshift Quasars

Shedding New Light on Weak Emission-Line Quasars in the C $_{IV}$ -H $β$ Parameter Space