Browsing Research publications by Author "Davies, R.L."

Now showing items 1-20 of 34

    • 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 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. ...

    • The ATLAS3D project - XXVI : H I discs in real and simulated fast and slow rotators 

      Serra, Paolo; Oser, Ludwig; Krajnović, Davor; Naab, Thorsten; Oosterloo, Tom; Morganti, Raffaella; Cappellari, Michele; Emsellem, Eric; Young, L.M.; Blitz, Leo; Davis, T.A.; Duc, Pierre-Alain; Hirschmann, Michaela; Weijmans, Anne-Marie; Alatalo, Katherine; Bayet, Estelle; Bois, Maxime; Bournaud, Frederic; Bureau, Martin; Crocker, Alison F.; Davies, R.L.; de Zeeuw, P.T.; Khochfar, Sadegh; Kuntschner, Harald; Lablanche, Pierre-Yves; McDermid, Richard M.; Sarzi, Marc; Scott, Nicholas (2014-11-11)
      One quarter of all nearby early-type galaxies (ETGs) outside Virgo host a disc/ring of H I with size from a few to tens of kpc and mass up to ∼109 M⊙. Here we investigate whether this H I is related to the presence of a ...

    • The ATLAS3D project - XXVII : Cold gas and the colours and ages of early-type galaxies 

      Young, L.M.; Scott, Nicholas; Serra, Paolo; Alatalo, Katherine; Blitz, Leo; Bois, Maxime; Bournaud, Frederic; Bureau, Martin; Crocker, Alison F.; Cappellari, Michele; Davies, R.L.; Davis, T.A.; de Zeeuw, P.T.; Duc, Pierre-Alain; Emsellem, Eric; Khochfar, Sadegh; Krajnovic, Davor; Kuntschner, Harald; McDermid, Richard M.; Morganti, Raffaella; Naab, Thorsten; Oosterloo, Tom; Sarzi, Marc; Weijmans, Anne-Marie (2014-11-11)
      We present a study of the cold gas contents of the ATLAS3D early-type galaxies, in the context of their optical colours, near-ultraviolet colours and Hβ absorption line strengths. Early-type (elliptical and lenticular) ...

    • The ATLAS3D Project - XXVIII : Dynamically driven star formation suppression in early-type galaxies 

      Davis, T.A.; Young, L.M.; Crocker, Alison F.; Bureau, Martin; Blitz, Leo; Alatalo, Katherine; Emsellem, Eric; Naab, Thorsten; Bayet, Estelle; Bois, Maxime; Bournaud, Frederic; Cappellari, Michele; Davies, R.L.; de Zeeuw, P.T.; Duc, Pierre-Alain; Khochfar, Sadegh; Krajnović, Davor; Kuntschner, Harald; McDermid, Richard M.; Morganti, Raffaella; Oosterloo, Tom; Sarzi, Marc; Scott, Nicholas; Serra, Paolo; Weijmans, Anne-Marie (2014-11-11)
      We present measurements of the star formation rate (SFR) in the early-type galaxies (ETGs) of the ATLAS3D sample, based on Wide-field Infrared Survey Explorer (WISE) 22 μm and Galaxy Evolution Explorer far-ultraviolet ...

    • 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)

    • Discovery of an active galactic nucleus driven molecular outflow in the local early-type galaxy NGC 1266 

      Alatalo, K.; Blitz, L.; Young, L.M.; Davis, T.A.; Bureau, M.; Lopez, L.A.; Cappellari, M.; Scott, N.; Shapiro, K.; Crocker, A.; Martin, S.; Bois, M.; Bournaud, F.; Davies, R.L.; de Zeeuw, P.T.; Duc, P.A.; Emsellem, E.; Falcon-Barroso, J.; Knochfar, S.; Krajnovic, D.; Kuntschner, H.; Lablanche, P.-Y.; McDermid, R.M.; Morganti, R.; Naab, T.; Oosterloo, T.; Sarzi, Marc; Serra, P.; Weijmans, A. (2011)
      We report the discovery of a powerful molecular wind from the nucleus of the non-interacting nearby S0 field galaxy NGC 1266. The single-dish CO profile exhibits emission to +/- 400 km s(-1) and requires a nested Gaussian ...

    • 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 ...

    • Galaxies in Southern Bright Star Fields: 1 - Near-infrared imaging 

      Baker, A.J.; Davies, R.L.; Lehnert, M.D.; Thatte, N.; Vacca, W.D.; Hainaut, O.R.; Jarvis, M.J.; Miley, G.K.; Rottgering, H.J.A. (2003)

    • Investigating the merger origin of early-type galaxies using ultra-deep optical images 

      Duc, P.-A.; Bournaud, F.; Ferriere, E.; Cuillandre, J.-C.; Alatalo, K.; Blitz, L.; Bois, M.; Emsellem, E.; Lablanche, P.-Y.; Michel-Dansac, L.; Bureau, M.; Cappellari, M.; Davies, R.L.; Davis, T.A.; Scott, N.; Côté, P.; Ferrarese, L.; Gwyn, S.; MacArthur, L.; De Zeeuw, P.T.; Krajnovic, D.; Kuntschner, H.; Khochfar, S.; McDermid, R.M.; Morganti, R.; Oosterloo, T.; Serra, P.; Naab, T.; Sarzi, M.; Weijmans, A.; Young, L.M. (2010-12-01)
      The mass assembly of galaxies leaves various imprints on their surroundings, such as shells, streams and tidal tails. The frequency and properties of these fine structures depend on the mechanism driving the mass assembly: ...

    • The kinematics of Core and Cusp galaxies : comparing HST imaging and integral-field observations 

      Falcon-Barroso, J.; Bacon, R.; Cappellari, M.; Davies, R.L.; de Zeeuw, P.T.; Emsellem, E.; Krajnovic, D.; Kuntschner, H.; McDermid, R.M.; Peletier, R.F.; Sarzi, Marc; van de Ven, G. (Springer Nature, 2010)
      In this proceeding we look at the relationship between the photometric nuclear properties of early-type galaxies from Hubble Space Telescope imaging and their overall kinematics as observed with the SAURON integral-field ...

    • Molecular gas and star formation in local early-type galaxies 

      Bureau, M.; Davis, T.A.; Cappellari, M.; Davies, R.L.; Scott, N.; Alatalo, K.; Blitz, L.; Crocker, A.F.; Young, L.M.; Combes, F.; Bois, M.; Emsellem, E.; Lablanche, P.-Y.; Bournaud, F.; De Zeeuw, P.T.; Krajnović, D.; Kuntschner, H.; Duc, P.-A.; Khochfar, S.; McDermid, R.M.; Morganti, R.; Oosterloo, T.; Serra, P.; Naab, T.; Sarzi, M.; Weijmans, A. (2010-12-01)
      The molecular gas content of local early-type galaxies is constrained and discussed in relation to their evolution. First, as part of the ATLAS survey, we present the first complete, large (260 objects), volume-limited ...

    • On the origin and fate of ionised-gas in early-type galaxies: The SAURON perspective 

      Sarzi, M.; Bacon, R.; Cappellari, M.; Davies, R.L.; Emsellem, E.; Falcon-Barroso, J.; Krajnovic, D.; Kuntschner, H.; McDermid, R.M.; Peletier, R.F.; de Zeeuw, T.; van de Ven, G. (2007)

    • The optical jet in 3C 31 on 15 arcsec scales 

      Croston, J.H.; Birkinshaw, M.; Conway, E.; Davies, R.L. (2003)

    • Recent Star Formation in Nearby Early-type Galaxies 

      Sarzi, M.; Bacon, R.; Cappellari, M.; Davies, R.L.; de Zeeuw, P.T.; Emsellem, E.; Falcon-Barroso, J.; Krajnovic, D.; Kuntschner, H.; McDermid, R.M.; Peletier, R.F.; van de Ven, G. (Astronomical Society of the Pacific, 2008)
      Motivated by recent progress in the study of early-type galaxies owing to technological advances, the launch of new space telescopes, and large ground-based surveys, we attempt a short review of our current understanding ...

    • The SAURON project - IV. The mass-to-light ratio, the virial mass estimator and the Fundamental Plane of elliptical and lenticular galaxies 

      Cappellari, M.; Bacon, R.; Bureau, M.; Damen, M.C.; Davies, R.L.; de Zeeuw, P.T.; Emsellem, E.; Falcon-Barroso, J.; Krajnovic, D.; Kuntschner, H.; McDermid, R.M.; Peletier, R.F.; Sarzi, M.; van den Bosch, R.C.E.; van de Ven, G. (2006)

    • The SAURON project - V. Integral-field emission-line kinematics of 48 elliptical and lenticular galaxies 

      Sarzi, M.; Falcon-Barroso, J.; Davies, R.L.; Bacon, R.; Bureau, M.; Cappellari, M.; de Zeeuw, T.; Emsellem, E.; Fathi, K.; Krajnovic, D.; Kuntschner, H.; McDermid, R.M.; Peletier, R.F. (2006)