activity
20022014
most citedThe Black Hole-Bulge Relationship in QSOs

252 citations · 1k across the 16 of their papers we have counts for

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Showing astro-ph.COShow all

5 papers · 1 filter

astro-ph.CO2012★ 37 cited

The Black Hole Mass - Stellar Velocity Dispersion Relationship for Quasars in the Sloan Digital Sky Survey Data Release 7

Sarah Salviander, Gregory A. Shields

We assess evolution in the black hole mass - stellar velocity dispersion relationship (M-sigma relationship) for quasars in the Sloan Digital Sky Survey Data Release 7 for the reds…

astro-ph.CO2011

Double-Peaked Narrow Emission Lines in AGN: The Role of Rotating Disks

Krista Lynne Smith, G. A. Shields, S. Salviander +2

AGN with double-peaked narrow lines (DPAGN) may be caused by kiloparsec scale binary AGN, bipolar outflows, or rotating gaseous disks. We examine the class of DPAGN in which the tw…

astro-ph.CO2010★ 30 cited

Fe II Emission in AGN: The Role of Total and Gas-Phase Iron Abundance

Gregory A. Shields, Randi R. Ludwig, Sarah Salviander

Active galactic nuclei (AGN) have Fe II emission from the broad line region (BLR) that differs greatly in strength from object to object. We examine the role of the total and gas-p…

astro-ph.CO2010★ 89 cited

The Jet-Driven Outflow in the Radio Galaxy SDSS J1517+3353: Implications for Double-Peaked Narrow-Line AGN

D. J. Rosario, G. A. Shields, G. B. Taylor +2

We report on the study of an intriguing active galaxy that was selected as a potential multiple supermassive black hole merger in the early-type host SDSS J151709.20+335324.7 (z=0.…

astro-ph.CO2009★ 72 cited

The Quasar SDSS J105041.35+345631.3: Black Hole Recoil or Extreme Double-Peaked Emitter?

G. A. Shields, D. J. Rosario, K. L. Smith +8

The quasar SDSS J105041.35+345631.3 (z = 0.272) has broad emission lines blueshifted by 3500 km/s relative to the narrow lines and the host galaxy. Such an object may be a candidat…