Di Matteo, P., Bournaud, F., Martig, M., Combes, F., Semelin, B.
We investigate the intensity enhancement and the duration of starburst episodes, triggered by major galaxy interactions and mergers. To this aim, we analyze two large statistical datasets of...
Bournaud, F., Bois, M., Emsellem, E.
Numerical simulations of galaxy mergers are a powerful tool to study these fundamental events in the hierarchical built-up of galaxies. Recent progress have been made owing to improved modeling,...
High-resolution simulations of galaxy mergers: Resolving globular cluster formation (2008)
Massive star clusters observed in galaxy mergers are often suggested to be progenitors of globular clusters. To study this hypothesis, we performed the highest resolution simulation of a gas-rich...
Bournaud, F., Daddi, E., Elmegreen, B. G., Elmegreen, D. M., Nesvadba, N., Vanzella, E., ...
We investigate the properties of a clump-cluster galaxy at redshift 1.57. The morphology of this galaxy is dominated by eight star-forming clumps in optical observations, and has photometric...
Simulations of galactic disks including a dark baryonic component (2008)
Revaz, Y., Pfenniger, D., Combes, F., Bournaud, F.
$\Lambda$CDM numerical simulations predict that the "missing baryons" reside in a Warm-Hot gas phase in the over-dense cosmic filaments. However, there are now several theoretical and observational...
Bournaud, F., Elmegreen, B. G., Elmegreen, D. M.
Many galaxies at high redshift have peculiar morphologies dominated by 10^8-10^9 Mo kpc-sized clumps. Using numerical simulations, we show that these "clump clusters" can result from fragmentation in...
Missing Mass in Collisional Debris from Galaxies (2007)
Bournaud, F., Brinks, E., Boquien, M., Amram, P., Lisenfeld, U., ...
Recycled dwarf galaxies can form in the collisional debris of massive galaxies. Theoretical models predict that, contrary to classical galaxies, they should be free of non-baryonic Dark Matter....
Bournaud, F, Jog, CJ, Combes, F
Multiple, sequential mergers are unavoidable in the hierarchical build-up picture of galaxies, in particular for the minor mergers that are frequent and highly likely to have occured several times...
Bournaud, F, Jog, CJ, Combes, F
Multiple, sequential mergers are unavoidable in the hierarchical build-up picture of galaxies, in particular for the minor mergers that are frequent and highly likely to have occured several times...
An almost head-on collision as the origin of two off-centre rings in the Andromeda galaxy (2006)
Block, D. L., Bournaud, F., Combes, F., Groess, R., Barmby, P., Ashby, M. L. N., ...
The unusual morphology of the Andromeda Spiral (Messier 31, the closest spiral galaxy to the Milky Way) has long been an enigma. Although regarded for decades as showing little evidence of a violent...
An almost head-on collision as the origin of two off-centre rings in the Andromeda galaxy (2006)
Block, D. L., Bournaud, F., Combes, F., Groess, R., Barmby, P., Ashby, M. L. N., ...
The unusual morphology of the Andromeda Spiral (Messier 31, the closest spiral galaxy to the Milky Way) has long been an enigma. Although regarded for decades as showing little evidence of a violent...
From Tidal Dwarf Galaxies to Satellite Galaxies (2006)
Cosmological models have granted dwarf galaxies a key role: their properties constrain the distribution of dark matter and the physical evolution of their hosts. There is increasing evidence that...
Stellar kinematics for the central spheroid in the Polar Disk Galaxy NGC4650A (2006)
Iodice, E., Arnaboldi, M., Saglia, R. P., Sparke, L. S., Gerhard, O., Gallagher, J. S., ...
We have obtained high angular resolution, high signal-to-noise spectra of the Calcium triplet absorption lines on the photometric axes of the stellar spheroid in the polar disk galaxy NGC4650A. Along...
Stellar kinematics for the central spheroid in the polar disk galaxy NGC 4650A (2006)
Iodice, E., Arnaboldi, M., Saglia, R. P., Sparke, L. S., Gerhard, O., Gallagher, J. S., ...
Lopsided spiral galaxies: evidence for gas accretion (2005)
Bournaud, F., Combes, F., Jog, C. J., Puerari, I.
We quantify the degree of lopsidedness for a sample of 149 galaxies observed in the near-infrared from the OSUBGS sample, and try to explain the physical origin for the observed disk lopsidedness. We...
Galaxy mergers with various mass ratios: properties of remnants (2005)
Bournaud, F., Jog, C. J., Combes, F.
We study galaxy mergers with various mass ratios using N-body simulations, with an emphasis on the unequal-mass mergers in the relatively unexplored range of mass-ratios 4:1-10:1. Our recent work...
Bournaud, F., Amram, P., Combes, F., Gach, J. L.
The kinematics of tidal tails in colliding galaxies has been studied via Fabry-Perot observations of the Halpha emission. With their large field of view and high spatial resolution, the Fabry-Perot...
The large extent of dark matter haloes probed by the formation of tidal dwarf galaxies (2005)
In several interacting systems, gas accumulations as massive as 10^9 solar masses are observed near the tip of tidal tails, and are thought to be possible progenitors of Tidal Dwarf Galaxies. Using...
Formation of polar ring galaxies (2005)
Polar ring galaxies are peculiar systems in which a gas rich, nearly polar ring surrounds an early-type or elliptical host galaxy. Two formation scenarios for these objects have been proposed: they...
AM 1934-563: A giant spiral polar-ring galaxy in a triplet (2005)
Reshetnikov, V., Bournaud, F., Combes, F., Faundez-Abans, M.
We have observed the emission-line kinematics and photometry of a southern triplet of galaxies. The triplet contains a giant spiral galaxy AM 1934-563 which optical structure resembles a polar-ring...
The life-time of galactic bars: central mass concentrations and gravity torques (2005)
Bournaud, F., Combes, F., Semelin, B.
Bars in gas-rich spiral galaxies are short-lived. They drive gas inflows through their gravity torques, and at the same time self-regulate their strength. Their robustness has been subject of debate,...
Lopsided spiral galaxies: evidence for gas accretion (2005)
Bournaud, F, Combes, F, Jog, CJ, Puerari, I
We quantify the degree of lopsidedness for a sample of 149 galaxies observed in the near-infrared from the OSUBGS sample, and try to explain the physical origin of the observed disk lopsidedness. We...
Galaxy mergers with various mass ratios: Properties of remnants (2005)
Jog, CJ, Bournaud, F, Combes, F
We study galaxy mergers with various mass ratios using N-body simulations, with an emphasis on the unequal-mass mergers in the relatively unexplored range of mass-ratios 4:1–10:1. Our recent work...
Lopsided spiral galaxies: evidence for gas accretion (2005)
Bournaud, F., Combes, F., Jog, C. J., Puerari, I.
We quantify the degree of lopsidedness for a sample of 149 galaxies observed in the near-infrared from the OSUBGS sample, and try to explain the physical origin for the observed disk lopsidedness. We...
Galaxy mergers with various mass ratios: properties of remnants (2005)
Bournaud, F., Jog, C. J., Combes, F.
We study galaxy mergers with various mass ratios using N-body simulations, with an emphasis on the unequal-mass mergers in the relatively unexplored range of mass-ratios 4:1-10:1. Our recent work...
Lopsided spiral galaxies: evidence for gas accretion (2005)
Bournaud, F, Combes, F, Jog, CJ, Puerari, I
We quantify the degree of lopsidedness for a sample of 149 galaxies observed in the near-infrared from the OSUBGS sample, and try to explain the physical origin of the observed disk lopsidedness. We...
Lopsided spiral galaxies: evidence for gas accretion (2005)
Bournaud, F., Combes, F., Jog, C. J., Puerari, I.
We quantify the degree of lopsidedness for a sample of 149 galaxies observed in the near-infrared from the OSUBGS sample, and try to explain the physical origin for the observed disk lopsidedness. We...
Galaxy mergers with various mass ratios: properties of remnants (2005)
Bournaud, F., Jog, C. J., Combes, F.
We study galaxy mergers with various mass ratios using N-body simulations, with an emphasis on the unequal-mass mergers in the relatively unexplored range of mass-ratios 4:1-10:1. Our recent work...
Lopsided spiral galaxies: evidence for gas accretion (2005)
Bournaud, F., Combes, F., Jog, C. J., Puerari, I.
We quantify the degree of lopsidedness for a sample of 149 galaxies observed in the near-infrared from the OSUBGS sample, and try to explain the physical origin for the observed disk lopsidedness. We...
Galaxy mergers with various mass ratios: properties of remnants (2005)
Bournaud, F., Jog, C. J., Combes, F.
We study galaxy mergers with various mass ratios using N-body simulations, with an emphasis on the unequal-mass mergers in the relatively unexplored range of mass-ratios 4:1-10:1. Our recent work...
Galaxy mergers with various mass ratios: Properties of remnants (2005)
Jog, CJ, Bournaud, F, Combes, F
We study galaxy mergers with various mass ratios using N-body simulations, with an emphasis on the unequal-mass mergers in the relatively unexplored range of mass-ratios 4:1–10:1. Our recent work...
Galaxy transmutations: The double ringed galaxy ESO 474-G26 (2004)
Reshetnikov, V., Bournaud, F., Combes, F., Faundez-Abans, M., Van Driel, W., ...
Surface photometry and a 21cm HI line spectrum of the giant double-ringed galaxy ESO 474-G26 are presented. The morphology of this system is unique among the 30,000 galaxies with >B15. Two almost...
Bournaud, F., Amram, P., Combes, F., Gach, J. L.
The kinematics of tidal tails in colliding galaxies has been studied via Fabry-Perot observations of the Halpha emission. With their large field of view and high spatial resolution, the Fabry-Perot...
Several interacting systems exhibit at the tip of their long tidal tails massive condensations of atomic hydrogen, which may be the progenitors of Tidal Dwarf Galaxies. Because, quite often, these...
Bournaud, F., Amram, P., Combes, F., Gach, J. L.
The kinematics of tidal tails in colliding galaxies has been studied via Fabry-Perot observations of the Halpha emission. With their large field of view and high spatial resolution, the Fabry-Perot...
Bournaud, F., Amram, P., Combes, F., Gach, J. L.
The kinematics of tidal tails in colliding galaxies has been studied via Fabry-Perot observations of the Halpha emission. With their large field of view and high spatial resolution, the Fabry-Perot...
ce-61: a Tidal Dwarf Galaxy in the Hercules cluster? (2003)
Van Driel, W., Amram, P., Bournaud, F., Balkowski, C., Cayatte, V., ...
A candidate Tidal Dwarf Galaxy, ce-61, was identified in the merger system IC 1182 in the Hercules supercluster. The multi-wavelength data we obtained so far do not prove, however, that it is...
Formation of polar ring galaxies (2003)
Polar ring galaxies are peculiar systems in which a gas rich, nearly polar ring surrounds an early-type or elliptical host galaxy. Two formation scenarios for these objects have been proposed: they...
The large extent of dark matter haloes probed by the formation of tidal dwarf galaxies (2003)
In several interacting systems, gas accumulations as massive as 10^9 solar masses are observed near the tip of tidal tails, and are thought to be possible progenitors of Tidal Dwarf Galaxies. Using...
Formation of polar ring galaxies (2003)
Polar ring galaxies are peculiar systems in which a gas rich, nearly polar ring surrounds an early-type or elliptical host galaxy. Two formation scenarios for these objects have been proposed: they...
The large extent of dark matter haloes probed by the formation of tidal dwarf galaxies (2003)
In several interacting systems, gas accumulations as massive as 10^9 solar masses are observed near the tip of tidal tails, and are thought to be possible progenitors of Tidal Dwarf Galaxies. Using...
Formation of polar ring galaxies (2003)
Polar ring galaxies are peculiar systems in which a gas rich, nearly polar ring surrounds an early-type or elliptical host galaxy. Two formation scenarios for these objects have been proposed: they...
Polar Ring Galaxies and the Tully Fisher relation: implications for the dark halo shape (2002)
Iodice, E., Arnaboldi, M., Bournaud, F., Combes, F., Sparke, L. S., Van Driel, W., ...
We have investigated the Tully-Fisher relation for Polar Ring Galaxies (PRGs), based on near infrared, optical and HI data available for a sample of these peculiar objects. The total K-band...
Gas accretion on spiral galaxies: bar formation and renewal (2002)
The effects of gas accretion on spiral disk dynamics and stability are studied through N-body simulations, including star formation and gas/stars mass exchange. The detailed processes of bar...