Effects of collisions and interactions on star formation in galaxy pairs in the field

By using cosmological simulations, we study the effect of galaxy interactions on star formation activity in low density regions of the local Universe (z < 0.1). To define galaxy pairs we have used the relative separation and radial velocity V criteria following the observational selections (L...

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Detalles Bibliográficos
Autores principales: Perez, Maria Josefa, Tissera, Patricia Beatriz, Garcia Lambas, Diego Rodolfo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2004
Materias:
Ciencias Astronómicas
Galaxies
Interactions
Simulacions
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/93524
http://www.astronomiaargentina.org.ar/uploads/docs/baaa_47.pdf
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-93524
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
Galaxies
Interactions
Simulacions
spellingShingle Ciencias Astronómicas
Galaxies
Interactions
Simulacions
Perez, Maria Josefa
Tissera, Patricia Beatriz
Garcia Lambas, Diego Rodolfo
Effects of collisions and interactions on star formation in galaxy pairs in the field
topic_facet Ciencias Astronómicas
Galaxies
Interactions
Simulacions
description By using cosmological simulations, we study the effect of galaxy interactions on star formation activity in low density regions of the local Universe (z < 0.1). To define galaxy pairs we have used the relative separation and radial velocity V criteria following the observational selections (Lambas et al, 2003). From our statistically analysis, we find that closed encounters at low relative velocity produce a significantly enhancement over that of isolated galaxies with similar redshifts in the field. To compare our results with observations, we analyze not only tridimensional catalog of galaxy pairs, but also we built a 2D catalog emulating observational data. Results from both 2D and 3D simulated catalog show that tendencies found between star formation rate and relative separations and radial velocities coincide with observational results. Finally, from the projected catalog we can determine the effect on the results produced by spurious pairs introduced by projection.
format Articulo
Articulo
author Perez, Maria Josefa
Tissera, Patricia Beatriz
Garcia Lambas, Diego Rodolfo
author_facet Perez, Maria Josefa
Tissera, Patricia Beatriz
Garcia Lambas, Diego Rodolfo
author_sort Perez, Maria Josefa
title Effects of collisions and interactions on star formation in galaxy pairs in the field
title_short Effects of collisions and interactions on star formation in galaxy pairs in the field
title_full Effects of collisions and interactions on star formation in galaxy pairs in the field
title_fullStr Effects of collisions and interactions on star formation in galaxy pairs in the field
title_full_unstemmed Effects of collisions and interactions on star formation in galaxy pairs in the field
title_sort effects of collisions and interactions on star formation in galaxy pairs in the field
publishDate 2004
url http://sedici.unlp.edu.ar/handle/10915/93524
http://www.astronomiaargentina.org.ar/uploads/docs/baaa_47.pdf
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AT tisserapatriciabeatriz effectsofcollisionsandinteractionsonstarformationingalaxypairsinthefield
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bdutipo_str Repositorios
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