Mid-infrared galaxy morphology from the Spitzer survey of stellar structure in galaxies (S^4G): the imprint of the De Vaucouleurs revised Hubble-Sandage classification system at 3.6 μm

Spitzer Space Telescope Infrared Array Camera imaging provides an opportunity to study all known morphological types of galaxies in the mid-IR at a depth significantly better than ground-based near-infrared and optical images. The goal of this study is to examine the imprint of the de Vaucouleurs cl...

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Detalles Bibliográficos
Autor: Gil De Paz, Armando
Tipo de recurso: artículo
Fecha de publicación:2010
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/44889
Acceso en línea:https://hdl.handle.net/20.500.14352/44889
Access Level:acceso abierto
Palabra clave:52
Infrared surface photometry
Digital-sky-survey
Spiral galaxies
Disk galaxies
Space-telescope
Dominated galaxies
Secular evolution
Elliptic galaxies
Barred galaxies
Mid-ultraviolet
Astrofísica
Astronomía (Física)
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spelling Mid-infrared galaxy morphology from the Spitzer survey of stellar structure in galaxies (S^4G): the imprint of the De Vaucouleurs revised Hubble-Sandage classification system at 3.6 μmGil De Paz, Armando52Infrared surface photometryDigital-sky-surveySpiral galaxiesDisk galaxiesSpace-telescopeDominated galaxiesSecular evolutionElliptic galaxiesBarred galaxiesMid-ultravioletAstrofísicaAstronomía (Física)Spitzer Space Telescope Infrared Array Camera imaging provides an opportunity to study all known morphological types of galaxies in the mid-IR at a depth significantly better than ground-based near-infrared and optical images. The goal of this study is to examine the imprint of the de Vaucouleurs classification volume in the 3.6 μm band, which is the best Spitzer waveband for galactic stellar mass morphology owing to its depth and its reddening-free sensitivity mainly to older stars. For this purpose, we have prepared classification images for 207 galaxies from the Spitzer archive, most of which are formally part of the Spitzer Survey of Stellar Structure in Galaxies (S^4G), a Spitzer post-cryogenic ("warm") mission Exploration Science Legacy Program survey of 2331 galaxies closer than 40 Mpc. For the purposes of morphology, the galaxies are interpreted as if the images are blue light, the historical waveband for classical galaxy classification studies. We find that 3.6 μm classifications are well correlated with blue-light classifications, to the point where the essential features of many galaxies look very similar in the two very different wavelength regimes. Drastic differences are found only for the most dusty galaxies. Consistent with a previous study by Eskridge et al., the main difference between blue-light and mid-IR types is an ≈1 stage interval difference for S0/a to Sbc or Sc galaxies, which tend to appear "earlier" in type at 3.6 μm due to the slightly increased prominence of the bulge, the reduced effects of extinction, and the reduced (but not completely eliminated) effect of the extreme population I stellar component. We present an atlas of all of the 207 galaxies analyzed here and bring attention to special features or galaxy types, such as nuclear rings, pseudobulges, flocculent spiral galaxies, I0 galaxies, double-stage and double-variety galaxies, and outer rings, that are particularly distinctive in the mid-IR.University Chicago PressUniversidad Complutense de Madrid20102010-09-0120102010-09-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/44889reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/448892026-06-02T12:44:21Z
dc.title.none.fl_str_mv Mid-infrared galaxy morphology from the Spitzer survey of stellar structure in galaxies (S^4G): the imprint of the De Vaucouleurs revised Hubble-Sandage classification system at 3.6 μm
title Mid-infrared galaxy morphology from the Spitzer survey of stellar structure in galaxies (S^4G): the imprint of the De Vaucouleurs revised Hubble-Sandage classification system at 3.6 μm
spellingShingle Mid-infrared galaxy morphology from the Spitzer survey of stellar structure in galaxies (S^4G): the imprint of the De Vaucouleurs revised Hubble-Sandage classification system at 3.6 μm
Gil De Paz, Armando
52
Infrared surface photometry
Digital-sky-survey
Spiral galaxies
Disk galaxies
Space-telescope
Dominated galaxies
Secular evolution
Elliptic galaxies
Barred galaxies
Mid-ultraviolet
Astrofísica
Astronomía (Física)
title_short Mid-infrared galaxy morphology from the Spitzer survey of stellar structure in galaxies (S^4G): the imprint of the De Vaucouleurs revised Hubble-Sandage classification system at 3.6 μm
title_full Mid-infrared galaxy morphology from the Spitzer survey of stellar structure in galaxies (S^4G): the imprint of the De Vaucouleurs revised Hubble-Sandage classification system at 3.6 μm
title_fullStr Mid-infrared galaxy morphology from the Spitzer survey of stellar structure in galaxies (S^4G): the imprint of the De Vaucouleurs revised Hubble-Sandage classification system at 3.6 μm
title_full_unstemmed Mid-infrared galaxy morphology from the Spitzer survey of stellar structure in galaxies (S^4G): the imprint of the De Vaucouleurs revised Hubble-Sandage classification system at 3.6 μm
title_sort Mid-infrared galaxy morphology from the Spitzer survey of stellar structure in galaxies (S^4G): the imprint of the De Vaucouleurs revised Hubble-Sandage classification system at 3.6 μm
dc.creator.none.fl_str_mv Gil De Paz, Armando
author Gil De Paz, Armando
author_facet Gil De Paz, Armando
author_role author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 52
Infrared surface photometry
Digital-sky-survey
Spiral galaxies
Disk galaxies
Space-telescope
Dominated galaxies
Secular evolution
Elliptic galaxies
Barred galaxies
Mid-ultraviolet
Astrofísica
Astronomía (Física)
topic 52
Infrared surface photometry
Digital-sky-survey
Spiral galaxies
Disk galaxies
Space-telescope
Dominated galaxies
Secular evolution
Elliptic galaxies
Barred galaxies
Mid-ultraviolet
Astrofísica
Astronomía (Física)
description Spitzer Space Telescope Infrared Array Camera imaging provides an opportunity to study all known morphological types of galaxies in the mid-IR at a depth significantly better than ground-based near-infrared and optical images. The goal of this study is to examine the imprint of the de Vaucouleurs classification volume in the 3.6 μm band, which is the best Spitzer waveband for galactic stellar mass morphology owing to its depth and its reddening-free sensitivity mainly to older stars. For this purpose, we have prepared classification images for 207 galaxies from the Spitzer archive, most of which are formally part of the Spitzer Survey of Stellar Structure in Galaxies (S^4G), a Spitzer post-cryogenic ("warm") mission Exploration Science Legacy Program survey of 2331 galaxies closer than 40 Mpc. For the purposes of morphology, the galaxies are interpreted as if the images are blue light, the historical waveband for classical galaxy classification studies. We find that 3.6 μm classifications are well correlated with blue-light classifications, to the point where the essential features of many galaxies look very similar in the two very different wavelength regimes. Drastic differences are found only for the most dusty galaxies. Consistent with a previous study by Eskridge et al., the main difference between blue-light and mid-IR types is an ≈1 stage interval difference for S0/a to Sbc or Sc galaxies, which tend to appear "earlier" in type at 3.6 μm due to the slightly increased prominence of the bulge, the reduced effects of extinction, and the reduced (but not completely eliminated) effect of the extreme population I stellar component. We present an atlas of all of the 207 galaxies analyzed here and bring attention to special features or galaxy types, such as nuclear rings, pseudobulges, flocculent spiral galaxies, I0 galaxies, double-stage and double-variety galaxies, and outer rings, that are particularly distinctive in the mid-IR.
publishDate 2010
dc.date.none.fl_str_mv 2010
2010-09-01
2010
2010-09-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/44889
url https://hdl.handle.net/20.500.14352/44889
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv University Chicago Press
publisher.none.fl_str_mv University Chicago Press
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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