GRAVITATIONAL FRAGMENTATION IN GALAXY MERGERS: A STABILITY CRITERION

dc.creatorEscala Astorquiza, Andrés
dc.creatorBecerra, Fernando
dc.creatorDel Valle, Fernando
dc.creatorCastillo, Esteban
dc.date.accessioned2014-01-29T15:40:16Z
dc.date.available2014-01-29T15:40:16Z
dc.date.created2014-01-29T15:40:16Z
dc.date.issued2013-06-20
dc.identifierThe Astrophysical Journal, 763:39 (7pp), 2013 January 20
dc.identifierDOI: 10.1088/0004-637X/763/1/39
dc.identifierhttps://repositorio.uchile.cl/handle/2250/126325
dc.description.abstractWe study the gravitational stability of gaseous streams in the complex environment of a galaxy merger, because mergers are known to be places of ongoing massive cluster formation and bursts of star formation. We find an analytic stability parameter for the case of gaseous streams orbiting around the merger remnant. We test our stability criterion using hydrodynamic simulations of galaxy mergers and obtain satisfactory results. We find that our criterion successfully predicts the streams that will be gravitationally unstable to fragmentation into clumps.
dc.languageen
dc.publisherIOP PUBLISHING LTD
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile
dc.subjectgalaxies: formation
dc.titleGRAVITATIONAL FRAGMENTATION IN GALAXY MERGERS: A STABILITY CRITERION
dc.typeArtículo de revista


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