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NGC1266 as a Local Candidate for Rapid Cessation of Star Formation
Katherine Alatalo, Kristina Nyland, Genevieve Graves +27
We present new Spectrographic Areal Unit for Research on Optical Nebulae (SAURON) integral-field spectroscopy and Swift Ultraviolet Optical Telescope (UVOT) observations of molecul…
The ATLAS project - XXV: Two-dimensional kinematic analysis of simulated galaxies and the cosmological origin of fast and slow rotators
T. Naab, L. Oser, E. Emsellem +26
We present a detailed two-dimensional stellar dynamical analysis of a sample of 44 cosmological hydrodynamical simulations of individual central galaxies and their satellites. Kine…
Dwarfs walking in a row. The filamentary nature of the NGC3109 association
M. Bellazzini, T. Oosterloo, F. Fraternali +1
We re-consider the association of dwarf galaxies around NGC3109, whose known members were NGC3109, Antlia, Sextans A and Sextans B, based on a new updated list of nearby galaxies a…
Radio Jets Clearing the Way Through a Galaxy: Watching Feedback in Action
Raffaella Morganti, Judit Fogasy, Zsolt Paragi +2
The energy released by an active galactic nucleus (AGN) has a strong impact on the surrounding interstellar medium (ISM). This feedback is considered to be the regulating factor fo…
The Lockman Hole project: gas and galaxy properties from a stacking experiment
K. Geréb, R. Morganti, T. A. Oosterloo +2
We perform an HI stacking analysis to study the relation between HI content and optical/radio/IR properties of galaxies located in the Lockman Hole area. In the redshift range cove…
Neutral atomic hydrogen (HI) gas evolution in field galaxies at z ~ 0.1 and 0.2
Jonghwan Rhee, Martin A. Zwaan, Frank H. Briggs +4
We measure the neutral atomic hydrogen (HI) gas content of field galaxies at intermediate redshifts of z ~ 0.1 and z ~ 0.2 using hydrogen 21-cm emission lines observed with the Wes…
HI in HO: Hoag's object revisited
Noah Brosch, Ido Finkelman, Tom Oosterloo +2
We present new HI observations of Hoag's Object obtained with the Westerbork Synthesis Radio Telescope (WSRT). The data show that the luminous optical ring around the elliptical bo…
The location and impact of jet-driven outflows of cold gas: the case of 3C293
Elizabeth Mahony, Raffaella Morganti, Bjorn Emonts +2
The nearby radio galaxy 3C293 is one of a small group of objects where extreme outflows of neutral hydrogen have been detected. However, due to the limited spatial resolution of pr…
The ATLAS3D Project -- XXIII. Angular momentum and nuclear surface brightness profiles
Davor Krajnovic, A. M. Karick, Roger L. Davies +22
[Abridged and Edited] We investigate nuclear light profiles in 135 ATLAS3D galaxies for which the Hubble Space Telescope (HST) imaging is available and compare them to the large sc…
HALOGAS: Extraplanar gas in NGC 3198
G. Gentile, G. I. G. Jozsa, P. Serra +6
We present the analysis of new, deep HI observations of the spiral galaxy NGC 3198, as part of the HALOGAS (Westerbork Hydrogen Accretion in LOcal GAlaxieS) survey, with the main a…
The Bluedisks project, a study of unusually HI-rich galaxies: I. HI Sizes and Morphology
Jing Wang, Guinevere Kauffmann, Gyula I. G. Józsa +10
We introduce the "Bluedisk" project, a large program at the Westerbork Synthesis Radio Telescope (WSRT) that has mapped the HI in a sample of 23 nearby galaxies with unusually high…
Probing the mass assembly of massive nearby galaxies with deep imaging
Pierre-Alain Duc
According to a popular scenario supported by numerical models, the mass assembly and growth of massive galaxies, in particular the Early-Type Galaxies (ETGs), is, below a redshift…
Tracing the extreme interplay between radio jets and the ISM in IC5063
Raffaella Morganti, Wilfred Frieswijk, Raymond J. B. Oonk +2
We report the discovery with the Atacama Pathfinder EXperiment (APEX) of an outflow of molecular gas in the radio-loud Seyfert galaxy IC5063 (z = 0.0110). In addition to the emissi…
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…