The brightest group galaxies and their large-scale environment
We use a sample of galaxy groups in SDSS data to study their brightestgalaxies (BGG), separating groups according to their large scale environment. The statistical properties of the BGG depend on the surrounding environment on large scales, characterized by the high density peaks within Future Virialized Structures (FVS). We also find that the luminosity, colour, stellar masses and concentration index of the BGG hosted by groups in superstructures are different, with statistical significance, from the corresponding properties of BGG hosted by groups elsewhere. Moreover, this signal is strongly dominated by disk-type galaxies.<p>The results reveal connections between the large scale environment and the accretion process onto the brightest group galaxies.</p>
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Format: | publishedVersion biblioteca |
Language: | eng |
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Asociación Argentina de Astronomía
2015
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Subjects: | LARGE SCALE STRUCTURE, BRIGHTNESS, GROUPS OF GALAXIES, STATISTICS, Estructura en gran escala, LUMINOSIDAD, GRUPOS DE GALAXIAS, ESTADISTICA, |
Online Access: | http://hdl.handle.net/11086/24363 |
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Biblioteca 'Ing. Agrónomo Moisés Farber' de la Facultad de Ciencias Agropecuarias |
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LARGE SCALE STRUCTURE BRIGHTNESS GROUPS OF GALAXIES STATISTICS Estructura en gran escala LUMINOSIDAD GRUPOS DE GALAXIAS ESTADISTICA LARGE SCALE STRUCTURE BRIGHTNESS GROUPS OF GALAXIES STATISTICS Estructura en gran escala LUMINOSIDAD GRUPOS DE GALAXIAS ESTADISTICA |
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LARGE SCALE STRUCTURE BRIGHTNESS GROUPS OF GALAXIES STATISTICS Estructura en gran escala LUMINOSIDAD GRUPOS DE GALAXIAS ESTADISTICA LARGE SCALE STRUCTURE BRIGHTNESS GROUPS OF GALAXIES STATISTICS Estructura en gran escala LUMINOSIDAD GRUPOS DE GALAXIAS ESTADISTICA Luparello, Heliana E. Lares Harbin Latorre, Marcelo Paz, Dante Javier. Yaryura, Claudia Yamila. Lambas, Diego García. Padilla, Nelson D. The brightest group galaxies and their large-scale environment |
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We use a sample of galaxy groups in SDSS data to study their brightestgalaxies (BGG), separating groups according to their large scale environment. The statistical properties of the BGG depend on the surrounding environment on large scales, characterized by the high density peaks within Future Virialized Structures (FVS). We also find that the luminosity, colour, stellar masses and concentration index of the BGG hosted by groups in superstructures are different, with statistical significance, from the corresponding properties of BGG hosted by groups elsewhere. Moreover, this signal is strongly dominated by disk-type galaxies.<p>The results reveal connections between the large scale environment and the accretion process onto the brightest group galaxies.</p> |
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LARGE SCALE STRUCTURE BRIGHTNESS GROUPS OF GALAXIES STATISTICS Estructura en gran escala LUMINOSIDAD GRUPOS DE GALAXIAS ESTADISTICA |
author |
Luparello, Heliana E. Lares Harbin Latorre, Marcelo Paz, Dante Javier. Yaryura, Claudia Yamila. Lambas, Diego García. Padilla, Nelson D. |
author_facet |
Luparello, Heliana E. Lares Harbin Latorre, Marcelo Paz, Dante Javier. Yaryura, Claudia Yamila. Lambas, Diego García. Padilla, Nelson D. |
author_sort |
Luparello, Heliana E. |
title |
The brightest group galaxies and their large-scale environment |
title_short |
The brightest group galaxies and their large-scale environment |
title_full |
The brightest group galaxies and their large-scale environment |
title_fullStr |
The brightest group galaxies and their large-scale environment |
title_full_unstemmed |
The brightest group galaxies and their large-scale environment |
title_sort |
brightest group galaxies and their large-scale environment |
publisher |
Asociación Argentina de Astronomía |
publishDate |
2015 |
url |
http://hdl.handle.net/11086/24363 |
work_keys_str_mv |
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_version_ |
1775946995858407424 |
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dig-unc-ar-11086-243632023-08-31T19:01:42Z The brightest group galaxies and their large-scale environment Luparello, Heliana E. Lares Harbin Latorre, Marcelo Paz, Dante Javier. Yaryura, Claudia Yamila. Lambas, Diego García. Padilla, Nelson D. LARGE SCALE STRUCTURE BRIGHTNESS GROUPS OF GALAXIES STATISTICS Estructura en gran escala LUMINOSIDAD GRUPOS DE GALAXIAS ESTADISTICA publishedVersion Fil: Fil: Luparello, Heliana E. Conicet. Instituto de Astronomía Teórica y Experimental; Argentina. Fil: Fil: Lares Harbin Latorre, Marcelo. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Fil: Fil: Luparello, Heliana E. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Fil: Fil: Lares Harbin Latorre, Marcelo. Conicet. Instituto de Astronomía Teórica y Experimental; Argentina. Fil: Fil: Paz, Dante Javier. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Fil: Fil: Paz, Dante Javier. Conicet. Instituto de Astronomía Teórica y Experimental; Argentina. Fil: Fil: Yaryura, Claudia Yamila. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Fil: Fil: Yaryura, Claudia Yamila. Conicet. Instituto de Astronomía Teórica y Experimental; Argentina. Fil: Fil: Lambas, Diego García. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Fil: Fil: Lambas, Diego García. Conicet. Instituto de Astronomía Teórica y Experimental; Argentina. We use a sample of galaxy groups in SDSS data to study their brightestgalaxies (BGG), separating groups according to their large scale environment. The statistical properties of the BGG depend on the surrounding environment on large scales, characterized by the high density peaks within Future Virialized Structures (FVS). We also find that the luminosity, colour, stellar masses and concentration index of the BGG hosted by groups in superstructures are different, with statistical significance, from the corresponding properties of BGG hosted by groups elsewhere. Moreover, this signal is strongly dominated by disk-type galaxies.<p>The results reveal connections between the large scale environment and the accretion process onto the brightest group galaxies.</p> Estudiamos las galaxias más luminosas (del inglés Brightest Group Galaxy, BGG) de una muestra de grupos de galaxias en el SDSS, discriminando submuestras de grupos según su estructura circundante en gran escala. Encontramos que las propiedades de las BGG dependen del ambiente en gran escala, caracterizado por su pertenencia a los picos de densidad dentro de estructuras virializadas en el futuro (del inglés Future Virialized Structures, FVS). Los valores de luminosidad, índice de color, masa estelar e índice de concentración de las BGG alojadas en grupos en FVS difieren con significancia estadística de aquellas que no se encuentran en superestructuras. Esta señal está dominada por galaxias tipo disco. Estos resultados revelan conexiones entre la estructura en gran escala y los procesos de aglomeración de masa en grupos de galaxias. http://adsabs.harvard.edu/abs/2015BAAA...57...67L publishedVersion Fil: Luparello, Heliana E. Conicet. Instituto de Astronomía Teórica y Experimental; Argentina. Fil: Lares Harbin Latorre, Marcelo. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Fil: Luparello, Heliana E. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Fil: Lares Harbin Latorre, Marcelo. Conicet. Instituto de Astronomía Teórica y Experimental; Argentina. Fil: Paz, Dante Javier. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Fil: Paz, Dante Javier. Conicet. Instituto de Astronomía Teórica y Experimental; Argentina. Fil: Yaryura, Claudia Yamila. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Fil: Yaryura, Claudia Yamila. Conicet. Instituto de Astronomía Teórica y Experimental; Argentina. Fil: Lambas, Diego García. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Fil: Lambas, Diego García. Conicet. Instituto de Astronomía Teórica y Experimental; Argentina. Astronomía (incluye Astrofísica y Ciencias del Espacio) 2022-04-27T11:29:25Z 2022-04-27T11:29:25Z 2015 conferenceObject 1669-9521 0571-3285 http://hdl.handle.net/11086/24363 eng Attribution-NonCommercial-ShareAlike 4.0 International http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Impreso Asociación Argentina de Astronomía |