• Physical Properties Of The Narrow-Line Region Of Low-Mass Active Galaxies 

      Ludwig, Randi R.; Greene, Jenny E.; Barth, Aaron J.; Ho, Luis C. (2012-09)
      We present spectroscopic observations of 27 active galactic nuclei (AGNs) with some of the lowest black hole (BH) masses known. We use the high spectral resolution and small aperture of our Keck data, taken with the ...
    • Redshift Evolution In Black Hole-Bulge Relations: Testing C IV-Based Black Hole Masses 

      Greene, Jenny E.; Peng, Chien Y.; Ludwig, Randi R. (2010-02)
      We re-examine claims for redshift evolution in black hole-bulge scaling relations based on lensed quasars. In particular, we refine the black hole (BH) mass estimates using measurements of Balmer lines from near-infrared ...
    • A Spitzer c2d Legacy Survey To Identify And Characterize Disks With Inner Dust Holes 

      Merin, Bruno; Brown, Joanna M.; Oliveira, Isa; Herczeg, Gregory J.; van Dishoeck, Ewine F.; Bottinelli, Sandrine; Evans, Neal J.; Cieza, Lucas; Spezzi, Loredana; Alcala, Juan M.; Harvey, Paul M.; Blake, Geoffrey A.; Bayo, Amelia; Geers, Vincent G.; Lahuis, Fred; Prusti, Timo; Augereau, Jean-Charles; Olofsson, Johan; Walter, Frederick M.; Chiu, Kuenley (2010-08)
      Understanding how disks dissipate is essential to studies of planet formation. However, identifying exactly how dust and gas dissipate is complicated due to the difficulty of finding objects that are clearly in the transition ...