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Browsing by Author "Lisenfeld, U."
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Abundant molecular gas in the intergalactic medium of Stephan's Quintet
Lisenfeld, U.; Braine, J.; Duc, P.A.; Leon, S.; Charmandaris, V.; Brinks, E. (2002-11)Stephan's Quintet (SQ) is a system consisting of at least four interacting galaxies which is well known for its complex dynamical and star formation history. It possesses a rich intergalactic medium (IGM), where hydrogen ... -
Abundant molecular gas in tidal dwarf galaxies: On-going galaxy formation
Braine, J.; Duc, P.A.; Lisenfeld, U.; Charmandaris, V.; Vallejo, O.; Leon, S.; Brinks, E. (2001-10)We investigate the process of galaxy formation as can be observed in the only currently forming galaxies { the so-called Tidal Dwarf Galaxies, hereafter TDGs { through observations of the molecular gas detected via its CO ... -
Colliding molecular clouds in head-on galaxy collisions
Braine, J.; Lisenfeld, U.; Duc, P.A.; Brinks, E.; Charmandaris, V.; Leon, S. (2004-05) -
Collisional Debris as Laboratories to Study Star Formation
Boquien, M.; Duc, P.A.; Wu, Y.; Charmandaris, V.; Lisenfeld, U.; Braine, J.; Brinks, E.; Iglesias-Paramo, J.; Xi, C.K. (2009)In this paper we address the question of whether star formation (SF) is driven by local processes or the large-scale environment. To do so, we investigate SF in collisional debris where the gravitational potential well and ... -
Gas dynamics in tidal dwarf galaxies : disc formation at z=0
Lelli, F.; Duc, P. -A.; Brinks, E.; Bournaud, F.; McGaugh, S. S.; Lisenfeld, U.; Weilbacher, P. M.; Boquien, M.; Revaz, Y.; Braine, J.; Koribalski, B. S.; Belles, P.E. (2015-12)Tidal dwarf galaxies (TDGs) are recycled objects that form within the collisional debris of interacting/merging galaxies. They are expected to be devoid of non-baryonic dark matter, since they can form only from dissipative ... -
Mass loss from galaxies: feeding the IGM, recycling in the IGM
Duc, P.A.; Braine, J.; Lisenfeld, U.; Amram, P.; Brinks, E. (2002) -
Missing Mass in Collisional Debris from Galaxies
Bournaud, F.; Duc, P.-A.; Brinks, E.; Boquien, M.; Amram, P.; Lisenfeld, U.; Koribalski, B. S.; Walter, F.; Charmandaris, V. (2007-05-01) -
Molecular and ionized gas in the tidal tail in Stephan's Quintet
Lisenfeld, U.; Braine, J.; Duc, P.A.; Brinks, E.; Charmandaris, V.; Leon, S. (2004-11) -
Molecular gas and star formation in the Tidal Dwarf Galaxy VCC 2062
Lisenfeld, U.; Braine, J.; Duc, P. A.; Boquien, M.; Brinks, E.; Bournaud, F.; Lelli, F.; Charmandaris, V. (2016-06-01)The physical mechanisms driving star formation (SF) in galaxies are still not fully understood. Tidal dwarf galaxies (TDGs), made of gas ejected during galaxy interactions, seem to be devoid of dark matter and have a ... -
Molecular Gas in the Intergalactic Medium of Stephan's Quintet
Lisenfeld, U.; Leon, S.; Braine, J.; Duc, P.A.; Charmandaris, V.; Brinks, E. (2003) -
Molecular Gas in the Intergalactic Medium of Stephan's Quintet
Lisenfeld, U.; Leon, S.; Braine, J.; Duc, P.A.; Charmandaris, V.; Brinks, E. (Astronomical Society of the Pacific, 2003) -
On-Going Galaxy Formation
Braine, J.; Duc, P.A.; Lisenfeld, U.; Charmandaris, V.; Vallejo, O.; Leon, S.; Brinks, E. (2002) -
Polychromatic view of intergalactic star formation in NGC 5291
Boquien, M.; Duc, P.A.; Braine, J.; Brinks, E.; Lisenfeld, U.; Charmandaris, V. (2007) -
Star Formation in Tidal Dwarf Galaxies
Lisenfeld, U.; Braine, J.; Vallejo, O.; Duc, P.A.; Leon, S.; Brinks, E.; Charmandaris, V. (Astronomical Society of the Pacific, 2002)Tidal Dwarf Galaxies (TDGs) are objects presently forming from gas that has been expelled from their parent galaxies during an interaction. We searched for CO emission in a sample of 11 TDGs, of which 8 were detected. The ... -
Studying the spatially resolved Schmidt-Kennicutt law in interacting galaxies : The case of Arp 158
Boquien, M.; Lisenfeld, U.; Duc, P. -A.; Braine, J.; Bournaud, F.; Brinks, E.; Charmandaris, V. (2011-09)Context. Recent studies have shown that star formation in mergers does not seem to follow the same Schmidt-Kennicutt relation as in spiral disks, presenting a higher star formation rate (SFR) for a given gas column density. ... -
VCC 2062: an old tidal dwarf galaxy in the Virgo cluster
Duc, P.A.; Braine, J.; Lisenfeld, U.; Brinks, E.; Boquien, M. (2007)