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The ATLAS 3D project - XVI. Physical parameters and spectral line energy distributions of the molecular gas in gas-rich early-type galaxies
Estelle Bayet, Martin Bureau, Timothy A. Davis +22
[Abridged] We present a detailed study of the physical properties of the molecular gas in a sample of 18 molecular gas-rich early-type galaxies (ETGs) from the ATLAS$ 3D sample. Ou…
The ATLAS3D project - XXII. Low-efficiency star formation in early-type galaxies: hydrodynamic models and observations
Marie Martig, Alison F. Crocker, Frederic Bournaud +27
We study the global efficiency of star formation in high resolution hydrodynamical simulations of gas discs embedded in isolated early-type and spiral galaxies. Despite using a uni…
The ATLAS3D Project - XXI. Correlations between gradients of local escape velocity and stellar populations in early-type galaxies
Nicholas Scott, Michele Cappellari, Roger L. Davies +22
We explore the connection between the local escape velocity, V_esc, and the stellar population properties in the ATLAS3D survey, a complete, volume-limited sample of nearby early-t…
Quenching of Star Formation in Molecular Outflow Host NGC 1266
K. Alatalo, K. E. Nyland, G. Graves +23
We detail the rich molecular story of NGC 1266, its serendipitous discovery within the ATLAS3D survey (Cappellari et al. 2011) and how it plays host to an AGN-driven molecular outf…
AGN Feedback Driven Molecular Outflow in NGC 1266
K. Alatalo, K. E. Nyland, G. Graves +25
NGC 1266 is a nearby field galaxy observed as part of the ATLAS3D survey (Cappellari et al. 2011). NGC 1266 has been shown to host a compact (< 200 pc) molecular disk and a mass-lo…
The ATLAS3D project - XVII. Linking photometric and kinematic signatures of stellar discs in early-type galaxies
Davor Krajnovic, Katherine Alatalo, Leo Blitz +20
[Abridged] We analyse the morphological structures in galaxies of the ATLAS3D sample by fitting a single Sersic profile and decomposing all non-barred objects (180 of 260 objects)…
The Atlas3D project - XIV. The extent and kinematics of molecular gas in early-type galaxies
Timothy A. Davis, Katherine Alatalo, Martin Bureau +23
We use interferometric CO observations to compare the extent, surface brightness profiles and kinematics of the molecular gas in CO-rich Atlas3D early-type galaxies (ETGs) and spir…
A relation between circumnuclear HI, dust, and optical cores in low-power radio galaxies
Ilse M. van Bemmel, Raffaella Morganti, Tom Oosterloo +1
From new observations and literature data we investigate the presence of HI, dust, and optical cores in the central kiloparsec of low-power radio galaxies. The goal of this pilot s…
Fueling the central engine of radio galaxies. II. The footprints of AGN feedback on the ISM of 3C 236
A. Labiano, S. Garcia-Burillo, F. Combes +7
Aims: We study the emission of molecular gas in 3C236, a FR II radio source at z~0.1, and search for the footprints of AGN feedback. 3C236 shows signs of a reactivation of its AGN…
The ATLAS3D project - XVIII. CARMA CO imaging survey of early-type galaxies
Katherine Alatalo, Timothy A. Davis, Martin Bureau +23
We present the Combined Array for Research in Millimeter Astronomy (CARMA) ATLAS3D molecular gas imaging survey, a systematic study of the distribution and kinematics of molecular…
Discovery of a giant HI tail in the galaxy group HCG 44
Paolo Serra, Baerbel Koribalski, Pierre-Alain Duc +25
We report the discovery of a giant HI tail in the intra-group medium of HCG 44 as part of the Atlas3D survey. The tail is ~300 kpc long in projection and contains ~5x10^8 M_sun of…
The Atlas3D project - XX. Mass-size and mass-sigma distributions of early-type galaxies: bulge fraction drives kinematics, mass-to-light ratio, molecular gas fraction and stellar initial mass function
Michele Cappellari, Richard M. McDermid, Katherine Alatalo +21
We study the (M,sigma) and (M,Re) projections of the thin Mass Plane (MP) (M,sigma,Re) which describes the distribution of the galaxy population. The distribution of galaxy propert…
The Atlas3D project - XV. Benchmark for early-type galaxies scaling relations from 260 dynamical models: mass-to-light ratio, dark matter, Fundamental Plane and Mass Plane
Michele Cappellari, Nicholas Scott, Katherine Alatalo +21
We study the volume-limited and nearly mass selected (stellar mass M>6*10^9 Msun) Atlas3D sample of 260 early-type galaxies. We construct detailed axisymmetric dynamical models (JA…
Gemini GMOS and WHT SAURON integral-field spectrograph observations of the AGN driven outflow in NGC 1266
Timothy A. Davis, Davor Krajnovic, Richard M. McDermid +24
We use the SAURON and GMOS integral field spectrographs to observe the active galactic nucleus (AGN) powered outflow in NGC 1266. This unusual galaxy is relatively nearby (D=30 Mpc…
Recurrent radio emission and gas supply: the case of the radio galaxy B2 0258+35
Aleksandar Shulevski, Raffaella Morganti, Tom Oosterloo +1
Outlined is the discovery of a very faint, diffuse, low surface-brightness (0.5 \mJybeam, 1.4 \mJyarcminsq on average) structure around the radio source B2 0258+35 hosted by an HI-…
Continuum Halos in Nearby Galaxies -- an EVLA Survey (CHANG-ES) -- II: First Results on NGC 4631
Judith Irwin, Rainer Beck, R. A. Benjamin +19
We present the first results from the CHANG-ES survey, a new survey of 35 edge-on galaxies to search for both in-disk as well as extra-planar radio continuum emission. The motivati…
Continuum Halos in Nearby Galaxies -- an EVLA Survey (CHANG-ES) -- I: Introduction to the Survey
Judith Irwin, Rainer Beck, R. A. Benjamin +19
We introduce a new survey to map the radio continuum halos of a sample of 35 edge-on spiral galaxies at 1.5 GHz and 6 GHz in all polarization products. The survey is exploiting the…
The Atlas3D project - XII. Recovery of the mass-to-light ratio of simulated early-type barred galaxies with axisymmetric dynamical models
Pierre-Yves Lablanche, Michele Cappellari, Eric Emsellem +22
We investigate the accuracy in the recovery of the stellar dynamics of barred galaxies when using axisymmetric dynamical models. We do this by trying to recover the mass-to-light r…
A systematic variation of the stellar initial mass function in early-type galaxies
Michele Cappellari, Richard M. McDermid, Katherine Alatalo +22
Much of our knowledge of galaxies comes from analysing the radiation emitted by their stars. It depends on the stellar initial mass function (IMF) describing the distribution of st…
Strong molecular hydrogen emission and kinematics of the multiphase gas in radio galaxies with fast jet-driven outflows
Pierre Guillard, Patrick Ogle, Bjorn Emonts +6
Observations of ionized and neutral gas outflows in radio-galaxies (RGs) suggest that AGN radio jet feedback has a galaxy-scale impact on the host ISM, but it is still unclear how…
Simulations of binary galaxy mergers and the link with Fast Rotators, Slow Rotators, and Kinematically Distinct Cores
Maxime Bois, Eric Emsellem, Frédéric Bournaud +21
We study the formation of early-type galaxies (ETGs) through mergers with a sample of 70 high-resolution numerical simulations of binary mergers of disc galaxies. These simulations…