Browsing by Author "Sarzi, M."

Now showing items 1-20 of 76

    • Absorption-line strengths of 18 late-type spiral galaxies observed with SAURON 

      Ganda, K.; Peletier, R.F.; McDermid, R.M.; Falcon-Barroso, J.; de Zeeuw, P.T.; Bacon, R.; Cappellari, M.; Davies, R.L.; Emsellem, E.; Krajnovic, D.; Kuntschner, H.; Sarzi, M.; van de Ven, G. (2007)
      We present absorption line-strength maps for a sample of 18 Sb-Sd galaxies observed using the integral-field spectrograph SAURON operating at the William Herschel Telescope on La Palma, as part of a project devoted to the ...

    • The ATLAS 3D Project - XXXI. Nuclear radio emission in nearby early-type galaxies 

      Nyland, K.; Young, L.~M.; Wrobel, J.~M.; Sarzi, M.; Morganti, R.; Alatalo, K.; Blitz, L.; Bournaud, F.; Bureau, M.; Cappellari, M.; Crocker, A.~F.; Davies, R.~L.; Davis, Timothy; de Zeeuw, P.~T.; Duc, P.-A.; Emsellem, E.; Khochfar, S.; Krajnovi, D.; Kuntschner, H.; McDermid, R.~M.; Naab, T.; Oosterloo, T.; Scott, N.; Serra, P.; Weijmans, A.-M. (2016-05-11)
      We present the results of a high-resolution, 5 GHz, Karl G. Jansky Very Large Array study of the nuclear radio emission in a representative subset of the ATLAS3D survey of early-type galaxies (ETGs). We find that 51 ± 4 ...

    • The ATLAS project - IX. The merger origin of a fast- and a slow-rotating early-type galaxy revealed with deep optical imaging : First results 

      Duc, P.-A.; Ferriere, E.; Bournaud, F.; Cuillandre, J.-C.; Serra, P.; Morganti, R.; Oosterloo, T.; Michel-Dansac, L.; Bois, M.; Emsellem, E.; Lablanche, P.-Y.; Alatalo, K.; Blitz, L.; Bois, M.; de Zeeuw, P.T.; Emsellem, E.; Krajnović, D.; Bureau, M.; Cappellari, M.; Davies, R.L.; Davis, T.A.; Scott, N.; Khochfar, S.; Kuntschner, H.; McDermid, R.M.; Morganti, R.; Oosterloo, T.; Naab, T.; Sarzi, M.; Weijmans, A.-M.; Young, L.M. (2011-10-01)
      The mass assembly of galaxies leaves imprints in their outskirts, such as shells and tidal tails. The frequency and properties of such fine structures depend on the main acting mechanisms - secular evolution, minor or major ...

    • The ATLAS project - VIII. Modelling the formation and evolution of fast and slow rotator early-type galaxies within ΛCDM 

      Khochfar, S.; Emsellem, E.; Bois, M.; de Zeeuw, P.T.; Krajnović, D.; Emsellem, E.; Bois, M.; Bacon, R.; Lablanche, P.-Y.; Serra, P.; Morganti, R.; Oosterloo, T.; Alatalo, K.; Blitz, L.; Bournaud, F.; Oosterloo, T.; Bureau, M.; Cappellari, M.; Davies, R.L.; Davis, T.A.; Scott, N.; Duc, P.-A.; Kuntschner, H.; McDermid, R.M.; Morganti, R.; Naab, T.; Sarzi, M.; Weijmans, A.-M.; Young, L.M. (2011-10-01)
      We propose a simple model for the origin of fast and slow rotator early-type galaxies (ETG) within the hierarchical Λcold dark matter (ΛCDM) scenario, that is based on the assumption that the mass fraction of stellar discs ...

    • The ATLAS project - X. On the origin of the molecular and ionized gas in early-type galaxies 

      Davis, T.A.; Bureau, M.; Cappellari, M.; Davies, R.L.; Scott, N.; Alatalo, K.; Blitz, L.; Sarzi, M.; Young, L.M.; Serra, P.; Morganti, R.; Oosterloo, T.; Crocker, A.F.; Krajnović, D.; de Zeeuw, P.T.; Emsellem, E.; McDermid, R.M.; Bois, M.; Bournaud, F.; Duc, P.-A.; de Zeeuw, P.T.; Emsellem, E.; Lablanche, P.-Y.; Khochfar, S.; Kuntschner, H.; Morganti, R.; Oosterloo, T.; Naab, T.; Weijmans, A.-M. (2011-10-01)
      We make use of interferometric CO and Hi observations, and optical integral-field spectroscopy from the ATLAS survey, to probe the origin of the molecular and ionized interstellar medium (ISM) in local early-type galaxies. ...

    • BASIS: Bayfordbury single-object integral field spectrograph 

      Richards, S.; Martin, Bill; Campbell, D.; Jones, H.R.A.; Bland-Hawthorn, J.; Lawrence, J.; Brinks, E.; Bryant, J.J.; Fogarty, L.; Gallaway, M.; Goodwin, M.; Leon-Saval, S.; Sarzi, M.; Smith, Daniel (SPIE, 2012-09)
      We present an inexpensive (<US$500) and easily replicable integral field unit for use on small aperture telescopes. Based on a commercial small spectrograph (SBIG Self-Guiding Spectrograph) and a 37 optical fibre bundle ...

    • A census of nuclear stellar discs in early-type galaxies 

      Ledo, H.R.; Sarzi, M.; Dotti, M.; Khochfar, S.; Morelli, L. (2010)
      Nuclear stellar discs (NSDs), of a few tens to hundreds of parsec across, are a common and yet poorly studied feature of early-type galaxies. Still, such small discs represent a powerful tool to constrain the assembling ...

    • The central kinematics of NGC 1399 measured with 14 pc resolution 

      Houghton, R.C.W.; Magorrian, J.; Sarzi, M.; Thatte, N.; Davies, R.L.; Krajnovic, D. (2006)

    • Central stellar populations of early-type galaxies in low-density environments 

      Collobert, M.; Sarzi, M.; Davies, R.L.; Kuntschner, H.; Colless, M. (2006)

    • Dark matter in early-type spiral galaxies: the case of NGC 2179 and of NGC 2775 

      Corsini, E.M.; Pizzella, A.; Sarzi, M.; Cinzano, P.; Vega Beltran, J.; Funes, J.; Bertola, F.; Persic, M.; Salucci, P. (1999)
      We present the stellar and ionized-gas velocity curves and velocity-dispersion profiles along the major axis for six early-type spiral galaxies. Two of these galaxies, namely NGC 2179 and NGC 2775, are particularly suited ...

    • Destruction of molecular gas reservoirs in early-type galaxies by active galactic nucleus feedback 

      Schawinski, K.; Lintott, C.J.; Kaviraj, S.; Silk, J.; Zuntz, J.; Bayet, E.; Thomas, D.; Maraston, C.; Viti, S.; Sarzi, M.; Yi, S.K.; Joo, S-J.; Daddi, E.; Bell, T. (2009)
      Residual star formation at late times in early-type galaxies and their progenitors must be suppressed in order to explain the population of red, passively evolving systems we see today. Likewise, residual or newly accreted ...

    • Early-type galaxies in different environments : an H i view 

      Oosterloo, T.; Morganti, R.; Crocker, A.; Jutte, E.; Cappellari, M.; de Zeeuw, T.; Krajnovic, D.; McDermid, R.M.; Kuntschner, H.; Sarzi, M.; Weijmans, A. (2010)
      We present an analysis of deep Westerbork Synthesis Radio Telescope observations of the neutral hydrogen in 33 nearby early-type galaxies selected from a representative sample studied earlier at optical wavelengths with ...

    • An Efficient Strategy to Select Targets for Gasdynamical Measurements of Black Hole Masses Using the Hubble Space Telescope 

      Ho, L.; Sarzi, M.; Rix, H-W.; Shields, J.C.; Rudnick, G.; Filippenko, A.; Barth, A. (2002)

    • Environment and self-regulation in galaxy formation 

      Thomas, D.; Maraston, C.; Schawinski, K.; Sarzi, M.; Silk, J. (2010)
      The environment is known to affect the formation and evolution of galaxies considerably best visible through the well-known morphology–density relationship. It is less clear, though, whether the environment is equally ...

    • Environment and the epochs of galaxy formation in the SDSS era 

      Thomas, D.; Maraston, C.; Schawinski, K.; Joo, S.-J.; Kaviraj, S.; Sarzi, M.; Yi, S.K. (2006-12-01)
      We analyse a sample of 1,652 elliptical galaxies morphologically selected from the SDSS DR4 with respect to their stellar population properties such as luminosity weighted ages, metallicities and /Fe element abundance ...

    • Evidence for a Supermassive Black Hole in the S0 Galaxy NGC 3245 

      Barth, A. J.; Sarzi, M.; Rix, H-W.; Ho, L. C.; Filippenko, A.V.; Sargent, W.L.W. (2001-07-01)
      The S0 galaxy NGC 3245 contains a circumnuclear disk of ionized gas and dust with a radius of 1.1" (110 pc), making it an ideal target for dynamical studies with the Hubble Space Telescope (HST). We have obtained spectra ...

    • Formation of slowly rotating early-type galaxies via major mergers: a resolution study 

      Bois, M.; Bournaud, F.; Emsellem, E.; Alatalo, K.; Blitz, L.; Bureau, M.; Cappellari, M.; Davies, R.L.; Davis, T.A.; de Zeeuw, P.T.; Duc, P.A.; Khochfar, S.; Krajnovic, D.; Kuntschner, H.; Lablanche, P.-Y.; McDermid, R.M.; Morganti, R.; Naab, T.; Oosterloo, T.; Sarzi, M.; Scott, N.; Serra, P.; Weijmans, A.; Young, L.M. (2010)
      We study resolution effects in numerical simulations of gas-rich and gas-poor major mergers, and show that the formation of slowly rotating elliptical galaxies often requires a resolution that is beyond the present-day ...

    • Galaxy Zoo : Dust lane early-type galaxies are tracers of recent, gas-rich minor mergers 

      Shabala, S.S.; Ting, Y. S.; Kaviraj, S.; Lintott, C.; Crockett, R.M.; Silk, J.; Sarzi, M.; Schawinski, K.; Bamford, S.P.; Edmondson, E. (2012-06-01)
      We present the second of two papers concerning the origin and evolution of local early-type galaxies exhibiting dust features. We use optical and radio data to examine the nature of active galactic nucleus (AGN) activity ...

    • Galaxy zoo : The fundamentally different co-evolution of supermassive black holes and their early- and late-type host galaxies 

      Schawinski, K.; Urry, C.M.; Virani, S.; Coppi, P.; Cardamone, C.N.; Bamford, S.P.; Treister, E.; Lintott, C.J.; Kaviraj, S.; Sarzi, M.; Keel, W.C.; Masters, K.L.; Nichol, R.C.; Thomas, D.; Ross, N.P.; Andreescu, D.; Murray, P.; Raddick, M.J.; Szalay, A.S.; Vandenberg, J.; Slosar, A. (2010-01-01)
      We use data from the Sloan Digital Sky Survey and visual classifications of morphology from the Galaxy Zoo project to study black hole growth in the nearby universe (z <0.05) and to break down the active galactic nucleus ...

    • Galaxy Zoo Green Peas: discovery of a class of compact extremely star-forming galaxies 

      Cardamone, C.; Schawinski, K.; Sarzi, M.; Bamford, S.; Bennert, N.; Urry, C.M.; Lintott, C.; Keel, W.; Parejko, J.; Nichol, R.C.; Thomas, D.; Andreescu, D.; Murray, P.; Raddick, M.J.; Slosar, A.; Szalay, A.; Vandenberg, J. (2009)
      We investigate a class of rapidly growing emission line galaxies, known as 'Green Peas', first noted by volunteers in the Galaxy Zoo project because of their peculiar bright green colour and small size, unresolved in Sloan ...