1.1k citations · 14.7k across the 202 of their papers we have counts for
44 papers · 1 filter
Dust-enshrouded star formation in XMM-LSS galaxy clusters
S. Temporin, P. -A. Duc, O. Ilbert +1
We present an investigation of the dust-enshrouded activity in a sample of X-ray selected clusters drawn from the XMM-LSS survey in the redshift range z ~ 0.05 - 1.05. By taking ad…
Galaxy mergers at high resolution: From elliptical galaxies to tidal dwarfs and globular clusters
F. Bournaud, M. Bois, E. Emsellem +1
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 impr…
High-resolution simulations of galaxy mergers: Resolving globular cluster formation
F. Bournaud, P. -A. Duc, E. Emsellem
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 simulatio…
Tidal debris from high-velocity collisions as fake dark galaxies: A numerical model of VirgoHI21
Pierre-Alain Duc, Frederic Bournaud
High speed collisions, although current in clusters of galaxies, have long been neglected, as they are believed to cause little damages to galaxies, except when they are repeated,…
Visible and invisible molecular gas in collisional debris of galaxies
Pierre-Alain Duc
Molecular gas has been searched for and found in unexpectedly large quantities in some collisional debris of interacting galaxies: HI-rich tidal tails, bridges and collisional ring…
VCC 2062: an old Tidal Dwarf Galaxy in the Virgo Cluster?
Pierre-Alain Duc, Jonathan Braine, Ute Lisenfeld +2
Numerical simulations predict the existence of old Tidal Dwarf Galaxies (TDGs) that would have survived several Gyr after the collision lying at their origin. Such survivors, which…
The XMM-LSS survey: the Class 1 cluster sample over the initial 5 square degrees and its cosmological modelling
F. Pacaud, M. Pierre, C. Adami +30
We present a sample of 29 galaxy clusters from the XMM-LSS survey over an area of some 5deg2 out to a redshift of z=1.05. The sample clusters, which represent about half of the X-r…
Tidal Debris posing as Dark Galaxies
Pierre-Alain Duc, Frederic Bournaud, Elias Brinks
Debris sent into the intergalactic medium during tidal collisions can tell us about several fundamental properties of galaxies, in particular their missing mass, both in the form o…
Missing Mass in Collisional Debris from Galaxies
F. Bournaud, P. -A. Duc, E. Brinks +6
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…
Intergalactic Star Formation
Pierre-Alain Duc, Meederic Boquien, Jonathan Braine +3
Star formation in interacting systems may take place in various locations, from the dust--enshrouded core of Ultraluminous Infrared Galaxies to more unusual places such as the debr…
Tidal Dwarf Galaxies as Laboratories of Star Formation and Cosmology
Pierre-Alain Duc, Frederic Bournaud, Mederic Boquien
Star formation may take place in a variety of locations in interacting systems: in the dense core of mergers, in the shock regions at the interface of the colliding galaxies and ev…
GRB 050223: A dark GRB in a dusty starburst galaxy
L. J. Pellizza, P. -A. Duc, E. Le Floc'h +19
Aims: We aim at detecting and determining the properties of the host galaxy of the dark GRB 050223. Methods: We use VLT optical/NIR images coupled to Swift X-ray positioning, and o…
XMM-LSS discovery of a z=1.22 galaxy cluster
M. N. Bremer, I. Valtchanov, J. P. Willis +11
We present details of the discovery of XLSSJ022303.0-043622, a z=1.2 cluster of galaxies. This cluster was identified from its X-ray properties and selected as a z>1 candidate from…
From Tidal Dwarf Galaxies to Satellite Galaxies
F. Bournaud, P. -A. Duc
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 increasin…
News from the "Dentist's Chair": Observations of AM 1353-272 with the VIMOS IFU
Peter M. Weilbacher, Pierre-Alain Duc
The galaxy pair AM 1353-272 nicknamed "The Dentist's Chair" shows two ~30 kpc long tidal tails. Previous observations using multi-slit masks showed that they host up to seven tidal…
The XMM Large-Scale Structure Survey: An initial sample of galaxy groups and clusters to a redshift z<0.6
J. P. Willis, F. Pacaud, I. Valtchanov +14
We present X-ray and optical spectroscopic observations of twelve galaxy groups and clusters identified within the XMM Large-Scale Structure (LSS) survey. Groups and clusters are s…
A top-down scenario for the formation of massive Tidal Dwarf Galaxies
Pierre-Alain Duc, Frederic Bournaud, Frederic Masset
Among those objects formed out of collisional debris during galaxy mergers, the prominent gaseous accumulations observed near the tip of some long tidal tails are the most likely t…
Molecular and ionized gas in the tidal tail in Stephan's Quintet
U. Lisenfeld, J. Braine, P. -A. Duc +3
We have mapped with the IRAM interferometer at Plateau de Bure (PdBI) the 12CO emission towards intergalactic star forming regions located in the tidal tail stemming from NGC7319,…
Kinematics of tidal tails in interacting galaxies: Tidal Dwarf Galaxies and projection effects
F. Bournaud, P. -A. Duc, P. Amram +2
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…
Luminous Infrared Starbursts in a Cluster of Galaxies
Pierre-Alain Duc, Dario Fadda, Bianca Poggianti +6
Analysing mid--infrared ISOCAM images of the cluster of galaxies J1888.16CL, we identified among its members several particularly active galaxies with total infrared luminosities w…
VLA HI and OVRO CO Interferometry of a Tidal Dwarf Galaxy
Elias Brinks, Pierre-Alain Duc, Fabian Walter
We present high resolution interferometric observations of the cool atomic and cold molecular ISM of the TDG candidate Arp 245N, an object resembling a dwarf galaxy in the northern…
Identifying old Tidal Dwarf Galaxies in Simulations and in the Nearby Universe
Pierre-Alain Duc, Frederic Bournaud, Frederic Masset
Most Tidal Dwarf Galaxies (TDGs) so-far discussed in the literature may be considered as young ones or even newborns, as they are still physically linked to their parent galaxies b…
ce-61: a Tidal Dwarf Galaxy in the Hercules cluster?
W. van Driel, P. -A. Duc, P. Amram +9
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,…
The large extent of dark matter haloes probed by the formation of tidal dwarf galaxies
F. Bournaud, P. -A. Duc, F. Masset
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 Dwar…