• Demographics of Bulge Types Within 11 Mpc and Implications for Galaxy Evolution 

      Fisher, David B.; Drory, Niv (2011-06)
      We present an inventory of galaxy bulge types (elliptical galaxy, classical bulge, pseudobulge, and bulgeless galaxy) in a volume-limited sample within the local 11 Mpc sphere using Spitzer 3.6 mu m and Hubble Space Telescope ...
    • Discovery Of A Cosmological, Relativistic Outburst Via Its Rapidly Fading Optical Emission 

      Cenko, S. Bradley; Kulkarni, S. R.; Horesh, Assaf; Corsi, Alessandra; Fox, Derek B.; Carpenter, John; Frail, Dale A.; Nugent, Peter E.; Perley, Daniel A.; Gruber, D.; Gal-Yam, Avishay; Groot, Paul J.; Hallinan, G.; Ofek, Eran O.; Rau, Arne; MacLeod, Chelsea L.; Miller, Adam A.; Bloom, Joshua S.; Filippenko, Alexei V.; Kasliwal, Mansi M.; Law, Nicholas M.; Morgan, Adam N.; Polishook, David; Poznanski, Dovi; Quimby, Robert M.; Sesar, Branimir; Shen, Ken J.; Silverman, Jeffrey M.; Sternberg, Assaf (2013-06)
      We report the discovery by the Palomar Transient Factory (PTF) of the transient source PTF11agg, which is distinguished by three primary characteristics: (1) bright (R-peak = 18.3mag), rapidly fading (Delta R = 4mag in ...
    • A Dozen New Galaxies Caught In The Act: Gas Stripping And Extended Emission Line Regions In The Coma Cluster 

      Yagi, Masafumi; Yoshida, Michitoshi; Komiyama, Yutaka; Kashikawa, Nobunari; Furusawa, Hisanori; Okamura, Sadanori; Graham, Alister W.; Miller, Neal A.; Carter, David; Mobasher, Bahram; Jogee, Sharadha (2010-12)
      We present images of extended H alpha clouds associated with 14 member galaxies in the Coma cluster obtained from deep narrowband imaging observations with the Suprime-Cam at the Subaru Telescope. The parent galaxies of ...
    • The HETDEX Pilot Survey. IV. The Evolution Of O II Emitting Galaxies From Z Similar To 0.5 To Z Similar To 0 

      Ciardullo, Robin; Gronwall, Caryl; Adams, Joshua J.; Blanc, Guillermo A.; Gebhardt, Karl; Finkelstein, Steven L.; Jogee, Shardha; Hill, Gary J.; Drory, Niv; Hopp, Ulrich; Schneider, Donald P.; Zeimann, Gregory R.; Dalton, Gavin B. (2013-05)
      We present an analysis of the luminosities and equivalent widths of the 284 z < 0.56 [O II]-emitting galaxies found in the 169 arcmin(2) pilot survey for the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX). By ...
    • Oxygen Metallicity Determinations From Optical Emission Lines In Early-Type Galaxies 

      Athey, Alex E.; Bregman, Joel N. (2009-05)
      We measured the oxygen abundances of the warm (T similar to 10(4) K) phase of gas in seven early-type galaxies through long-slit observations. A template spectra was constructed from galaxies void of warm gas and subtracted ...
    • The Spatially Resolved Star Formation Law From Integral Field Spectroscopy: Virus-P Observations Of NGC 5194 

      Blanc, Guillermo A.; Heiderman, Amanda; Gebhardt, Karl; Evans, Neal J.; Adams, Joshua (2009-10)
      We investigate the relation between the star formation rate (SFR) surface density (Sigma(SFR)) and the mass surface density of gas (Sigma(gas)) in NGC 5194 (a.k.a. M51a, Whirlpool Galaxy). Visible Integral field Replicable ...