Gemini spectroscopy of ultracompact dwarfs in the fossil group NGC 1132
- Autores
- Madrid, Juan P.; Donzelli, Carlos Jose
- Año de publicación
- 2013
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- A spectroscopic follow-up of ultracompact dwarf (UCD) candidates in the fossil group NGC 1132 is undertaken with the Gemini Multi Object Spectrograph. These new Gemini spectra prove the presence of six UCDs in the fossil group NGC 1132 at a distance of D ∼ 100 Mpc and a recessional velocity of vr = 6935 ± 11 km s−1. The brightest and largest member of the UCD population is an M32 analog with a size of 77.1 pc and a magnitude of MV = −14.8 mag with the characteristics in between those of the brightest UCDs and compact elliptical galaxies. The ensemble of UCDs have an average radial velocity of vr = 6966 ± 208 km s−1 and a velocity dispersion of σv = 169 ± 18 km s−1 similar to the one of poor galaxy groups. This work shows that UCDs can be used as test particles to determine the dynamical properties of galaxy groups. The presence of UCDs in the fossil group environment is confirmed and thus the fact that UCDs can form across diverse evolutionary conditions.
Fil: Madrid, Juan P.. Swinburne University of Technology; Australia
Fil: Donzelli, Carlos Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomia Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomia Teórica y Experimental; Argentina - Materia
-
Galaxies
Elliptical
Dwarf - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/25691
Ver los metadatos del registro completo
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Gemini spectroscopy of ultracompact dwarfs in the fossil group NGC 1132Madrid, Juan P.Donzelli, Carlos JoseGalaxiesEllipticalDwarfhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1A spectroscopic follow-up of ultracompact dwarf (UCD) candidates in the fossil group NGC 1132 is undertaken with the Gemini Multi Object Spectrograph. These new Gemini spectra prove the presence of six UCDs in the fossil group NGC 1132 at a distance of D ∼ 100 Mpc and a recessional velocity of vr = 6935 ± 11 km s−1. The brightest and largest member of the UCD population is an M32 analog with a size of 77.1 pc and a magnitude of MV = −14.8 mag with the characteristics in between those of the brightest UCDs and compact elliptical galaxies. The ensemble of UCDs have an average radial velocity of vr = 6966 ± 208 km s−1 and a velocity dispersion of σv = 169 ± 18 km s−1 similar to the one of poor galaxy groups. This work shows that UCDs can be used as test particles to determine the dynamical properties of galaxy groups. The presence of UCDs in the fossil group environment is confirmed and thus the fact that UCDs can form across diverse evolutionary conditions.Fil: Madrid, Juan P.. Swinburne University of Technology; AustraliaFil: Donzelli, Carlos Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomia Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomia Teórica y Experimental; ArgentinaIOP Publishing2013-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/25691Madrid, Juan P.; Donzelli, Carlos Jose; Gemini spectroscopy of ultracompact dwarfs in the fossil group NGC 1132; IOP Publishing; Astrophysical Journal; 770; 2; 6-2013; 1-60004-637XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1088/0004-637X/770/2/158info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0004-637X/770/2/158/metainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:23:18Zoai:ri.conicet.gov.ar:11336/25691instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:23:19.008CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Gemini spectroscopy of ultracompact dwarfs in the fossil group NGC 1132 |
title |
Gemini spectroscopy of ultracompact dwarfs in the fossil group NGC 1132 |
spellingShingle |
Gemini spectroscopy of ultracompact dwarfs in the fossil group NGC 1132 Madrid, Juan P. Galaxies Elliptical Dwarf |
title_short |
Gemini spectroscopy of ultracompact dwarfs in the fossil group NGC 1132 |
title_full |
Gemini spectroscopy of ultracompact dwarfs in the fossil group NGC 1132 |
title_fullStr |
Gemini spectroscopy of ultracompact dwarfs in the fossil group NGC 1132 |
title_full_unstemmed |
Gemini spectroscopy of ultracompact dwarfs in the fossil group NGC 1132 |
title_sort |
Gemini spectroscopy of ultracompact dwarfs in the fossil group NGC 1132 |
dc.creator.none.fl_str_mv |
Madrid, Juan P. Donzelli, Carlos Jose |
author |
Madrid, Juan P. |
author_facet |
Madrid, Juan P. Donzelli, Carlos Jose |
author_role |
author |
author2 |
Donzelli, Carlos Jose |
author2_role |
author |
dc.subject.none.fl_str_mv |
Galaxies Elliptical Dwarf |
topic |
Galaxies Elliptical Dwarf |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
A spectroscopic follow-up of ultracompact dwarf (UCD) candidates in the fossil group NGC 1132 is undertaken with the Gemini Multi Object Spectrograph. These new Gemini spectra prove the presence of six UCDs in the fossil group NGC 1132 at a distance of D ∼ 100 Mpc and a recessional velocity of vr = 6935 ± 11 km s−1. The brightest and largest member of the UCD population is an M32 analog with a size of 77.1 pc and a magnitude of MV = −14.8 mag with the characteristics in between those of the brightest UCDs and compact elliptical galaxies. The ensemble of UCDs have an average radial velocity of vr = 6966 ± 208 km s−1 and a velocity dispersion of σv = 169 ± 18 km s−1 similar to the one of poor galaxy groups. This work shows that UCDs can be used as test particles to determine the dynamical properties of galaxy groups. The presence of UCDs in the fossil group environment is confirmed and thus the fact that UCDs can form across diverse evolutionary conditions. Fil: Madrid, Juan P.. Swinburne University of Technology; Australia Fil: Donzelli, Carlos Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomia Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomia Teórica y Experimental; Argentina |
description |
A spectroscopic follow-up of ultracompact dwarf (UCD) candidates in the fossil group NGC 1132 is undertaken with the Gemini Multi Object Spectrograph. These new Gemini spectra prove the presence of six UCDs in the fossil group NGC 1132 at a distance of D ∼ 100 Mpc and a recessional velocity of vr = 6935 ± 11 km s−1. The brightest and largest member of the UCD population is an M32 analog with a size of 77.1 pc and a magnitude of MV = −14.8 mag with the characteristics in between those of the brightest UCDs and compact elliptical galaxies. The ensemble of UCDs have an average radial velocity of vr = 6966 ± 208 km s−1 and a velocity dispersion of σv = 169 ± 18 km s−1 similar to the one of poor galaxy groups. This work shows that UCDs can be used as test particles to determine the dynamical properties of galaxy groups. The presence of UCDs in the fossil group environment is confirmed and thus the fact that UCDs can form across diverse evolutionary conditions. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-06 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/25691 Madrid, Juan P.; Donzelli, Carlos Jose; Gemini spectroscopy of ultracompact dwarfs in the fossil group NGC 1132; IOP Publishing; Astrophysical Journal; 770; 2; 6-2013; 1-6 0004-637X CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/25691 |
identifier_str_mv |
Madrid, Juan P.; Donzelli, Carlos Jose; Gemini spectroscopy of ultracompact dwarfs in the fossil group NGC 1132; IOP Publishing; Astrophysical Journal; 770; 2; 6-2013; 1-6 0004-637X CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1088/0004-637X/770/2/158 info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0004-637X/770/2/158/meta |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
IOP Publishing |
publisher.none.fl_str_mv |
IOP Publishing |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844614227733512192 |
score |
13.070432 |