GRAVITATIONAL FRAGMENTATION IN GALAXY MERGERS: A STABILITY CRITERION

Author	dc.contributor.author	Escala, Andrés
Author	dc.contributor.author	Becerra, Fernando	es_CL
Author	dc.contributor.author	Valle, Luciano del	es_CL
Author	dc.contributor.author	Castillo, Esteban	es_CL
Admission date	dc.date.accessioned	2013-07-30T20:53:24Z
Available date	dc.date.available	2013-07-30T20:53:24Z
Publication date	dc.date.issued	2013-01-04
Cita de ítem	dc.identifier.citation	The Astrophysical Journal, 763:39 (7pp), 2013 January 20	en_US
Identifier	dc.identifier.other	doi:10.1088/0004-637X/763/1/39
Identifier	dc.identifier.uri	https://repositorio.uchile.cl/handle/2250/125800
Abstract	dc.description.abstract	We 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.	en_US
Lenguage	dc.language.iso	en	en_US
Publisher	dc.publisher	The American Astronomical Society.	en_US
Keywords	dc.subject	galaxies: formation	en_US
Título	dc.title	GRAVITATIONAL FRAGMENTATION IN GALAXY MERGERS: A STABILITY CRITERION	en_US
Document type	dc.type	Artículo de revista