957 citations · 14.3k across the 348 of their papers we have counts for
18 papers · 2 filters
Bulge formation in disk galaxies with MOND
F. Combes
The formation of galaxies and their various components can be stringent tests of dark matter models and of gravity theories. In the standard cold dark matter (CDM) model, spheroids…
MUSE discovers perpendicular arcs in the inner filament of Cen A
Stephen Hamer, Philippe Salomé, Francoise Combes +1
Evidence of AGN interaction with the IGM is observed in some galaxies and many cool core clusters. Radio jets are suspected to dig large cavities into the surrounding gas. In most…
Cold gas in group-dominant elliptical galaxies
E. O'Sullivan, F. Combes, S. Hamer +3
We present IRAM 30m telescope observations of the CO(1-0) and (2-1) lines in a sample of 11 group-dominant elliptical galaxies selected from the CLoGS nearby groups sample. Our obs…
Molecular gas content in strongly-lensed z~1.5-3 star-forming galaxies with low IR luminosities
M. Dessauges-Zavadsky, M. Zamojski, D. Schaerer +10
To extend the molecular gas measurements to typical star-forming galaxies (SFGs) with SFR < 40 Msun yr^{-1} and M* < 2.5x10^{10} Msun at z~1.5-3, we have observed CO emission with…
Molecular Gas in the X-ray Bright Group NGC 5044 as Revealed by ALMA
Laurence P. David, Jeremy Lim, William Forman +17
A short 30 minute ALMA observation of the early-type galaxy NGC 5044, which resides at the center of an X-ray bright group with a moderate cooling flow, has detected 24 molecular s…
Molecular line emission in NGC1068 imaged with ALMA: II. The chemistry of the dense molecular gas
S. Viti, S. García-Burillo, A. Fuente +19
We present a detailed analysis of ALMA Bands 7 and 9 data of CO, HCO+, HCN and CS, augmented with Plateau de Bure Interferometer (PdBI) data of the ~ 200 pc circumnuclear disk (CND…
New constraints on dust emission and UV attenuation of z=6.5-7.5 galaxies from millimeter observations
D. Schaerer, F. Boone, M. Zamojski +4
We have targeted two recently discovered Lyman break galaxies (LBGs) to search for dust continuum and [CII] 158 micron line emission. The strongly lensed z~6.8 LBG A1703-zD1 behind…
Cosmic evolution of gas content and accretion
Francoise Combes
In the present universe, the gas is a minor component of giant galaxies, and its dominant phase is atomic (HI). During galaxy evolution in cosmic times, models predict that gas fra…
Detection of chloronium and measurement of the 35Cl/37Cl isotopic ratio at z=0.89 toward PKS1830-211
S. Muller, J. H. Black, M. Guelin +11
We report the first extragalactic detection of chloronium (H2Cl+), in the z=0.89 absorber in front of the lensed blazar PKS1830-211. The ion is detected through its 1_11-0_00 line…
An ALMA Early Science survey of molecular absorption lines toward PKS1830-211 -- Analysis of the absorption profiles
S. Muller, F. Combes, M. Guelin +17
We present the first results of an ALMA spectral survey of strong absorption lines for common interstellar species in the z=0.89 molecular absorber toward the lensed blazar PKS1830…
Herschel Extreme Lensing Line Observations: Dynamics of two strongly lensed star forming galaxies near redshift z = 2
James E. Rhoads, Sangeeta Malhotra, Sahar Allam +11
We report on two regularly rotating galaxies at redshift z=2, using high resolution spectra of the bright [CII] 158 micron emission line from the HIFI instrument on the Herschel Sp…
ALMA backed NIR high resolution integral field spectroscopy of the NUGA galaxy NGC 1433
Semir Smajic, Lydia Moser, Andreas Eckart +7
We present the results of near-infrared (NIR) H- and K-band European Southern Observatory SINFONI integral field spectroscopy (IFS) of the Seyfert 2 galaxy NGC 1433. We present emi…
A Luminous Infrared Merger with Two Bipolar Molecular Outflows: ALMA and SMA Observations of NGC 3256
Kazushi Sakamoto, Susanne Aalto, Francoise Combes +2
We report ALMA and SMA observations of the luminous infrared merger NGC 3256, the most luminous galaxy within z=0.01. Both of the two merger nuclei separated by 5" (0.8 kpc) on the…
Abundant molecular gas and inefficient star formation in intracluster regions: Ram pressure stripped tail of the Norma galaxy ESO137-001
Pavel Jachym, Francoise Combes, Luca Cortese +2
For the first time, we reveal large amounts of cold molecular gas in a ram pressure stripped tail, out to a large, intracluster distance from the galaxy. With the APEX telescope we…
Fueling the central engine of radio galaxies. III. Molecular gas and star formation efficiency of 3C 293
A. Labiano, S. Garcia-Burillo, F. Combes +6
Aims. We investigate the different manifestations of AGN feedback in the evolved, powerful radio source 3C293 and their impact on the molecular gas of its host galaxy, which harbor…
The role of turbulence in star formation laws and thresholds
Katarina Kraljic, Florent Renaud, Frederic Bournaud +4
The Schmidt-Kennicutt relation links the surface densities of gas to the star formation rate in galaxies. The physical origin of this relation, and in particular its break, i.e. th…
Metallicity and kinematics of the bar in-situ
C. Babusiaux, D. Katz, V. Hill +11
Constraints on the Galactic bulge/bar structure and formation history from stellar kinematics and metallicities mainly come from relatively high-latitude fields (|b|>4) where a com…
The dominant epoch of star formation in the Milky Way formed the thick disc
Owain N. Snaith, Misha Haywood, Paola Di Matteo +4
We report the first robust measurement of the Milky Way star formation history using the imprint left on chemical abundances of long-lived stars. The formation of the Galactic thic…