Browsing Meeting minutes, announcements and publications from RIT Colleges by Subject "Galaxies-nuclei"

Now showing items 1-15 of 15

    • Galaxy cores as relics of black hole mergers 

      Merritt, David; Milosavljevic, Milos; Rest, Armin; van den Bosch, Frank (Blackwell Pubilshing, 2002-04)
      We investigate the hypothesis that the cores of elliptical galaxies and bulges are created from the binding energy liberated by the coalescence of supermassive binary black holes during galaxy mergers. Assuming that the ...

    • HI absorption in the gigamaser galaxy TXS 2226-184 and the relation between HI absorption and water emission 

      Taylor, Gregory; Peck, Alison; Henkel, Christian; Falcke, Heino; Mundell, Carole; O'Dea, Christopher; Baum, Stefi; Gallimore, Jack (American Astronomical Society, 2002-07-20)
      We report on the discovery of H i in absorption toward the gigamaser galaxy TXS 2226-184 using the Very Large Array. The absorption appears to consist of two components—one with a width of 125 km s^-1 and one broader (420 ...

    • The large scale distribution of warm ionized gas around nearby radio galaxies with jet-cloud interactions 

      Tadhunter, Clive; Villar-Martin, Montse; Morganti, Raffaella; Bland-Hawthorn, Joss; Axon, David (Blackwell Publishing: Monthly Notices of the Royal Astronomical Society, 2000-06)
      Deep, narrow-band Halpha observations taken with the TAURUS Tunable Filter (TTF) on the 4.2m WHT telescope are presented for two nearby radio galaxies with strong jet-cloud interactions. Although the brightest emission ...

    • No supermassive black hole in M33? 

      Merritt, David; Ferrarese, Laura; Joseph, Charles (Science, 2001-08-10)
      We analyze optical long-slit spectroscopy of the nucleus of M33 obtained from the Space Telescope Imaging Spectrograph aboard the Hubble Space Telescope. Rather than the steep rise expected within the radius of influence ...

    • Observations of the neutral gas and dust in the radio galaxy 3C305 

      Jackson, Neal; Beswick, Rob; Pedlar, Alan; Cole, G.; Sparks, William; Leahy, Patrick; Axon, David (Blackwell Publishing: Monthly Notices of the Royal Astronomical Society, 2003-01)
      We present MERLIN and Hubble Space Telescope (HST) observations of the central region of the nearby radio galaxy 3C305 and use them to study the gas and dust in this object. TheMERLIN observations are of neutral hydrogen ...

    • Supermassive black hole mass measurements for NGC 1300 and NGC 2748 based on HST [Hubble Space Telescope] emission-line gas kinematics 

      Atkinson, John; Collett, J.; Marconi, Alessandro; Axon, David; Alonso-Herrero, Almudena; Batcheldor, Dan; Binney, James; Capetti, Alessandro; Carollo, C. Marcella; Dressel, Linda; Ford, Holland; Gerssen, Joris; Hughes, M.; Macchetto, Duccio; Maciejewski, Witold; Merrifield, Michael; Scarlata, Claudia; Sparks, William; Stiavelli, Massimo; Tsvetanov, Zlatan; van der Marel, Roeland (Blackwell Publishing: Monthly Notices of the Royal Astronomical Society, 2005-05)
      We present Space Telescope Imaging Spectrograph emission-line spectra of the central regions of the spiral galaxies NGC 1300 and NGC 2748. From the derived kinematics of the nuclear gas we have found evidence for central ...