The Low-luminosity Galaxy Population in the NGC 5044 Group

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Detailed surface photometry for 79 (mostly dwarf) galaxies in the NGC 5044 Group area is analysed, revealing the existence of different morphologies among objects originally classified as early-type dwarfs. Particularly, a significant fraction of bright dwarf “ellipticals” show a distinct bulge+disc...

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Autores principales: Cellone, Sergio Aldo, Buzzoni, Alberto, Saviane, Ivo, Ivanov, Valentin D., Borissova, Jordanka
Formato: Libro Capitulo de libro
Lenguaje:Inglés
Publicado: Springer 2007
Materias:
Ciencias Astronómicas
Disc galaxy
Disc structure
Star formation history
Photometric redshift
Galaxy distribution
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/123909
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-123909
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
Disc galaxy
Disc structure
Star formation history
Photometric redshift
Galaxy distribution
spellingShingle Ciencias Astronómicas
Disc galaxy
Disc structure
Star formation history
Photometric redshift
Galaxy distribution
Cellone, Sergio Aldo
Buzzoni, Alberto
Saviane, Ivo
Ivanov, Valentin D.
Borissova, Jordanka
The Low-luminosity Galaxy Population in the NGC 5044 Group
topic_facet Ciencias Astronómicas
Disc galaxy
Disc structure
Star formation history
Photometric redshift
Galaxy distribution
description Detailed surface photometry for 79 (mostly dwarf) galaxies in the NGC 5044 Group area is analysed, revealing the existence of different morphologies among objects originally classified as early-type dwarfs. Particularly, a significant fraction of bright dwarf “ellipticals” show a distinct bulge+disc structure; we thus re-classify these objects as dwarf lenticulars (dS0). Our finding points at a possible scenario where these systems are the remnants of “harassed” disc galaxies. This is emphasized by the discovery of a few objects with hints for very low-surface brightness spiral-like structure. The colours, structure, and spatial distribution of the different galaxy types suggest that our classification may indeed be separating objects with different origins and/or evolutionary paths.
format Libro
Capitulo de libro
author Cellone, Sergio Aldo
Buzzoni, Alberto
Saviane, Ivo
Ivanov, Valentin D.
Borissova, Jordanka
author_facet Cellone, Sergio Aldo
Buzzoni, Alberto
Saviane, Ivo
Ivanov, Valentin D.
Borissova, Jordanka
author_sort Cellone, Sergio Aldo
title The Low-luminosity Galaxy Population in the NGC 5044 Group
title_short The Low-luminosity Galaxy Population in the NGC 5044 Group
title_full The Low-luminosity Galaxy Population in the NGC 5044 Group
title_fullStr The Low-luminosity Galaxy Population in the NGC 5044 Group
title_full_unstemmed The Low-luminosity Galaxy Population in the NGC 5044 Group
title_sort low-luminosity galaxy population in the ngc 5044 group
publisher Springer
publishDate 2007
url http://sedici.unlp.edu.ar/handle/10915/123909
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