A SLUGGS and Gemini/GMOS combined study of the elliptical galaxy M60: wide-field photometry and kinematics of the globular cluster system

Autores
Pota, Vincenzo; Brodie, Jean P.; Bridges, Terry; Strader, Jay; Romanowsky, Aaron J.; Villaume, Alexa; Jennings, Zach; Faifer, Favio Raúl; Pastorello, Nicola; Forbes, Duncan A.; Campbell, Ainsley; Usher, Christopher; Foster, Caroline; Spitler, Lee R.; Caldwell, Nelson; Forte, Juan Carlos.; Norris, Mark A.; Zepf, Stephen E.; Beasley, Michael A.; Gebhardt, Karl; Hanes, David A.; Sharples, Ray M.; Arnold, Jacob A.
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present new wide-field photometry and spectroscopy of the globular clusters (GCs) around NGC 4649 (M60), the third brightest galaxy in the Virgo cluster. Imaging of NGC 4649 was assembled from a recently-obtained HST/ACS mosaic, and new Subaru/Suprime-Cam and archival CFHT/MegaCam data. About 1200 sources were followed up spectroscopically using combined observations from three multi-object spectrographs: Keck/DEIMOS, Gemini/GMOS and MMT/Hectospec. We confirm 431 unique GCs belonging to NGC 4649, a factor of 3.5 larger than previous datasets and with a factor of 3 improvement in velocity precision. We confirm significant GC colour bimodality and find that the red GCs are more centrally concentrated, while the blue GCs are more spatially extended. We infer negative GC colour gradients in the innermost 20 kpc and flat gradients out to large radii. Rotation is detected along the galaxy major axis for all tracers: blue GCs, red GCs, galaxy stars and planetary nebulae. We compare the observed properties of NGC 4649 with galaxy formation models. We find that formation via a major merger between two gas-poor galaxies, followed by satellite accretion, can consistently reproduce the observations of NGC 4649 at different radii. We find no strong evidence to support an interaction between NGC 4649 and the neighbouring spiral galaxy NGC 4647. We identify interesting GC kinematic features in our data, such as counter-rotating subgroups and bumpy kinematic profiles, which encode more clues about the formation history of NGC 4649.
Fil: Pota, Vincenzo. University of California Observatories; Estados Unidos
Fil: Brodie, Jean P. . University of California Observatories; Estados Unidos
Fil: Bridges, Terry . Queens University; Canadá
Fil: Strader, Jay . Michigan State University; Estados Unidos
Fil: Romanowsky, Aaron J. . University of California Observatories; Estados Unidos
Fil: Villaume, Alexa . University of California Observatories; Estados Unidos
Fil: Jennings, Zach . University of California Observatories; Estados Unidos
Fil: Faifer, Favio Raúl. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Astrofísica de la Plata; Argentina. Universidad Nacional de La Plata; Argentina
Fil: Pastorello, Nicola. Swinburne University Centre for Astrophysics & Supercomputing; Australia
Fil: Forbes, Duncan A. . Swinburne University Centre for Astrophysics & Supercomputing; Australia
Fil: Campbell, Ainsley . Queens University; Canadá
Fil: Usher, Christopher . Swinburne University Centre for Astrophysics & Supercomputing; Australia
Fil: Foster, Caroline . Australian Astronomical Observatory; Australia
Fil: Spitler, Lee R. . Australian Astronomical Observatory; Australia
Fil: Caldwell, Nelson . Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Forte, Juan Carlos. . Gobierno de la Ciudad de Buenos Aires. Secretaria de Cultura. Subsecretaria de Patrimonio Cultural. Planetario "galileo Galilei"; Argentina
Fil: Norris, Mark A. . Max Planck Institut für Astronomie; Alemania
Fil: Zepf, Stephen E. . Michigan State University; Estados Unidos
Fil: Beasley, Michael A. . Instituto de Astrofísica de Canarias; España
Fil: Gebhardt, Karl . University of Texas at Austin; Estados Unidos
Fil: Hanes, David A. . Queens University; Canadá
Fil: Sharples, Ray M. . University Of Durham; Reino Unido
Fil: Arnold, Jacob A. . University of California Observatories; Estados Unidos
Materia
Astrophysics of galaxies
Clusters of galaxies
Formation of galaxies
NGC 4649 (galaxia)
Haloes
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/10749
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/10749
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling A SLUGGS and Gemini/GMOS combined study of the elliptical galaxy M60: wide-field photometry and kinematics of the globular cluster systemPota, VincenzoBrodie, Jean P. Bridges, Terry Strader, Jay Romanowsky, Aaron J. Villaume, Alexa Jennings, Zach Faifer, Favio RaúlPastorello, NicolaForbes, Duncan A. Campbell, Ainsley Usher, Christopher Foster, Caroline Spitler, Lee R. Caldwell, Nelson Forte, Juan Carlos. Norris, Mark A. Zepf, Stephen E. Beasley, Michael A. Gebhardt, Karl Hanes, David A. Sharples, Ray M. Arnold, Jacob A. Astrophysics of galaxiesClusters of galaxiesFormation of galaxiesNGC 4649 (galaxia)Haloeshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present new wide-field photometry and spectroscopy of the globular clusters (GCs) around NGC 4649 (M60), the third brightest galaxy in the Virgo cluster. Imaging of NGC 4649 was assembled from a recently-obtained HST/ACS mosaic, and new Subaru/Suprime-Cam and archival CFHT/MegaCam data. About 1200 sources were followed up spectroscopically using combined observations from three multi-object spectrographs: Keck/DEIMOS, Gemini/GMOS and MMT/Hectospec. We confirm 431 unique GCs belonging to NGC 4649, a factor of 3.5 larger than previous datasets and with a factor of 3 improvement in velocity precision. We confirm significant GC colour bimodality and find that the red GCs are more centrally concentrated, while the blue GCs are more spatially extended. We infer negative GC colour gradients in the innermost 20 kpc and flat gradients out to large radii. Rotation is detected along the galaxy major axis for all tracers: blue GCs, red GCs, galaxy stars and planetary nebulae. We compare the observed properties of NGC 4649 with galaxy formation models. We find that formation via a major merger between two gas-poor galaxies, followed by satellite accretion, can consistently reproduce the observations of NGC 4649 at different radii. We find no strong evidence to support an interaction between NGC 4649 and the neighbouring spiral galaxy NGC 4647. We identify interesting GC kinematic features in our data, such as counter-rotating subgroups and bumpy kinematic profiles, which encode more clues about the formation history of NGC 4649.Fil: Pota, Vincenzo. University of California Observatories; Estados UnidosFil: Brodie, Jean P. . University of California Observatories; Estados UnidosFil: Bridges, Terry . Queens University; CanadáFil: Strader, Jay . Michigan State University; Estados UnidosFil: Romanowsky, Aaron J. . University of California Observatories; Estados UnidosFil: Villaume, Alexa . University of California Observatories; Estados UnidosFil: Jennings, Zach . University of California Observatories; Estados UnidosFil: Faifer, Favio Raúl. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Astrofísica de la Plata; Argentina. Universidad Nacional de La Plata; ArgentinaFil: Pastorello, Nicola. Swinburne University Centre for Astrophysics & Supercomputing; AustraliaFil: Forbes, Duncan A. . Swinburne University Centre for Astrophysics & Supercomputing; AustraliaFil: Campbell, Ainsley . Queens University; CanadáFil: Usher, Christopher . Swinburne University Centre for Astrophysics & Supercomputing; AustraliaFil: Foster, Caroline . Australian Astronomical Observatory; AustraliaFil: Spitler, Lee R. . Australian Astronomical Observatory; AustraliaFil: Caldwell, Nelson . Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Forte, Juan Carlos. . Gobierno de la Ciudad de Buenos Aires. Secretaria de Cultura. Subsecretaria de Patrimonio Cultural. Planetario "galileo Galilei"; ArgentinaFil: Norris, Mark A. . Max Planck Institut für Astronomie; AlemaniaFil: Zepf, Stephen E. . Michigan State University; Estados UnidosFil: Beasley, Michael A. . Instituto de Astrofísica de Canarias; EspañaFil: Gebhardt, Karl . University of Texas at Austin; Estados UnidosFil: Hanes, David A. . Queens University; CanadáFil: Sharples, Ray M. . University Of Durham; Reino UnidoFil: Arnold, Jacob A. . University of California Observatories; Estados UnidosWiley2015-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/zipapplication/pdfhttp://hdl.handle.net/11336/10749Pota, Vincenzo; Brodie, Jean P. ; Bridges, Terry ; Strader, Jay ; Romanowsky, Aaron J. ; et al.; A SLUGGS and Gemini/GMOS combined study of the elliptical galaxy M60: wide-field photometry and kinematics of the globular cluster system; Wiley; Monthly Notices Of The Royal Astronomical Society; 450; 3-2015; 1962-19830035-8711enginfo:eu-repo/semantics/altIdentifier/arxiv/http://arxiv.org/abs/1503.07520info:eu-repo/semantics/altIdentifier/url/http://mnras.oxfordjournals.org/content/450/2/1962info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stv677info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:09:00Zoai:ri.conicet.gov.ar:11336/10749instacron: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:34982025-09-10 13:09:00.482CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A SLUGGS and Gemini/GMOS combined study of the elliptical galaxy M60: wide-field photometry and kinematics of the globular cluster system
title A SLUGGS and Gemini/GMOS combined study of the elliptical galaxy M60: wide-field photometry and kinematics of the globular cluster system
spellingShingle A SLUGGS and Gemini/GMOS combined study of the elliptical galaxy M60: wide-field photometry and kinematics of the globular cluster system
Pota, Vincenzo
Astrophysics of galaxies
Clusters of galaxies
Formation of galaxies
NGC 4649 (galaxia)
Haloes
title_short A SLUGGS and Gemini/GMOS combined study of the elliptical galaxy M60: wide-field photometry and kinematics of the globular cluster system
title_full A SLUGGS and Gemini/GMOS combined study of the elliptical galaxy M60: wide-field photometry and kinematics of the globular cluster system
title_fullStr A SLUGGS and Gemini/GMOS combined study of the elliptical galaxy M60: wide-field photometry and kinematics of the globular cluster system
title_full_unstemmed A SLUGGS and Gemini/GMOS combined study of the elliptical galaxy M60: wide-field photometry and kinematics of the globular cluster system
title_sort A SLUGGS and Gemini/GMOS combined study of the elliptical galaxy M60: wide-field photometry and kinematics of the globular cluster system
dc.creator.none.fl_str_mv Pota, Vincenzo
Brodie, Jean P.
Bridges, Terry
Strader, Jay
Romanowsky, Aaron J.
Villaume, Alexa
Jennings, Zach
Faifer, Favio Raúl
Pastorello, Nicola
Forbes, Duncan A.
Campbell, Ainsley
Usher, Christopher
Foster, Caroline
Spitler, Lee R.
Caldwell, Nelson
Forte, Juan Carlos.
Norris, Mark A.
Zepf, Stephen E.
Beasley, Michael A.
Gebhardt, Karl
Hanes, David A.
Sharples, Ray M.
Arnold, Jacob A.
author Pota, Vincenzo
author_facet Pota, Vincenzo
Brodie, Jean P.
Bridges, Terry
Strader, Jay
Romanowsky, Aaron J.
Villaume, Alexa
Jennings, Zach
Faifer, Favio Raúl
Pastorello, Nicola
Forbes, Duncan A.
Campbell, Ainsley
Usher, Christopher
Foster, Caroline
Spitler, Lee R.
Caldwell, Nelson
Forte, Juan Carlos.
Norris, Mark A.
Zepf, Stephen E.
Beasley, Michael A.
Gebhardt, Karl
Hanes, David A.
Sharples, Ray M.
Arnold, Jacob A.
author_role author
author2 Brodie, Jean P.
Bridges, Terry
Strader, Jay
Romanowsky, Aaron J.
Villaume, Alexa
Jennings, Zach
Faifer, Favio Raúl
Pastorello, Nicola
Forbes, Duncan A.
Campbell, Ainsley
Usher, Christopher
Foster, Caroline
Spitler, Lee R.
Caldwell, Nelson
Forte, Juan Carlos.
Norris, Mark A.
Zepf, Stephen E.
Beasley, Michael A.
Gebhardt, Karl
Hanes, David A.
Sharples, Ray M.
Arnold, Jacob A.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Astrophysics of galaxies
Clusters of galaxies
Formation of galaxies
NGC 4649 (galaxia)
Haloes
topic Astrophysics of galaxies
Clusters of galaxies
Formation of galaxies
NGC 4649 (galaxia)
Haloes
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We present new wide-field photometry and spectroscopy of the globular clusters (GCs) around NGC 4649 (M60), the third brightest galaxy in the Virgo cluster. Imaging of NGC 4649 was assembled from a recently-obtained HST/ACS mosaic, and new Subaru/Suprime-Cam and archival CFHT/MegaCam data. About 1200 sources were followed up spectroscopically using combined observations from three multi-object spectrographs: Keck/DEIMOS, Gemini/GMOS and MMT/Hectospec. We confirm 431 unique GCs belonging to NGC 4649, a factor of 3.5 larger than previous datasets and with a factor of 3 improvement in velocity precision. We confirm significant GC colour bimodality and find that the red GCs are more centrally concentrated, while the blue GCs are more spatially extended. We infer negative GC colour gradients in the innermost 20 kpc and flat gradients out to large radii. Rotation is detected along the galaxy major axis for all tracers: blue GCs, red GCs, galaxy stars and planetary nebulae. We compare the observed properties of NGC 4649 with galaxy formation models. We find that formation via a major merger between two gas-poor galaxies, followed by satellite accretion, can consistently reproduce the observations of NGC 4649 at different radii. We find no strong evidence to support an interaction between NGC 4649 and the neighbouring spiral galaxy NGC 4647. We identify interesting GC kinematic features in our data, such as counter-rotating subgroups and bumpy kinematic profiles, which encode more clues about the formation history of NGC 4649.
Fil: Pota, Vincenzo. University of California Observatories; Estados Unidos
Fil: Brodie, Jean P. . University of California Observatories; Estados Unidos
Fil: Bridges, Terry . Queens University; Canadá
Fil: Strader, Jay . Michigan State University; Estados Unidos
Fil: Romanowsky, Aaron J. . University of California Observatories; Estados Unidos
Fil: Villaume, Alexa . University of California Observatories; Estados Unidos
Fil: Jennings, Zach . University of California Observatories; Estados Unidos
Fil: Faifer, Favio Raúl. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Astrofísica de la Plata; Argentina. Universidad Nacional de La Plata; Argentina
Fil: Pastorello, Nicola. Swinburne University Centre for Astrophysics & Supercomputing; Australia
Fil: Forbes, Duncan A. . Swinburne University Centre for Astrophysics & Supercomputing; Australia
Fil: Campbell, Ainsley . Queens University; Canadá
Fil: Usher, Christopher . Swinburne University Centre for Astrophysics & Supercomputing; Australia
Fil: Foster, Caroline . Australian Astronomical Observatory; Australia
Fil: Spitler, Lee R. . Australian Astronomical Observatory; Australia
Fil: Caldwell, Nelson . Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Forte, Juan Carlos. . Gobierno de la Ciudad de Buenos Aires. Secretaria de Cultura. Subsecretaria de Patrimonio Cultural. Planetario "galileo Galilei"; Argentina
Fil: Norris, Mark A. . Max Planck Institut für Astronomie; Alemania
Fil: Zepf, Stephen E. . Michigan State University; Estados Unidos
Fil: Beasley, Michael A. . Instituto de Astrofísica de Canarias; España
Fil: Gebhardt, Karl . University of Texas at Austin; Estados Unidos
Fil: Hanes, David A. . Queens University; Canadá
Fil: Sharples, Ray M. . University Of Durham; Reino Unido
Fil: Arnold, Jacob A. . University of California Observatories; Estados Unidos
description We present new wide-field photometry and spectroscopy of the globular clusters (GCs) around NGC 4649 (M60), the third brightest galaxy in the Virgo cluster. Imaging of NGC 4649 was assembled from a recently-obtained HST/ACS mosaic, and new Subaru/Suprime-Cam and archival CFHT/MegaCam data. About 1200 sources were followed up spectroscopically using combined observations from three multi-object spectrographs: Keck/DEIMOS, Gemini/GMOS and MMT/Hectospec. We confirm 431 unique GCs belonging to NGC 4649, a factor of 3.5 larger than previous datasets and with a factor of 3 improvement in velocity precision. We confirm significant GC colour bimodality and find that the red GCs are more centrally concentrated, while the blue GCs are more spatially extended. We infer negative GC colour gradients in the innermost 20 kpc and flat gradients out to large radii. Rotation is detected along the galaxy major axis for all tracers: blue GCs, red GCs, galaxy stars and planetary nebulae. We compare the observed properties of NGC 4649 with galaxy formation models. We find that formation via a major merger between two gas-poor galaxies, followed by satellite accretion, can consistently reproduce the observations of NGC 4649 at different radii. We find no strong evidence to support an interaction between NGC 4649 and the neighbouring spiral galaxy NGC 4647. We identify interesting GC kinematic features in our data, such as counter-rotating subgroups and bumpy kinematic profiles, which encode more clues about the formation history of NGC 4649.
publishDate 2015
dc.date.none.fl_str_mv 2015-03
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/11336/10749
Pota, Vincenzo; Brodie, Jean P. ; Bridges, Terry ; Strader, Jay ; Romanowsky, Aaron J. ; et al.; A SLUGGS and Gemini/GMOS combined study of the elliptical galaxy M60: wide-field photometry and kinematics of the globular cluster system; Wiley; Monthly Notices Of The Royal Astronomical Society; 450; 3-2015; 1962-1983
0035-8711
url http://hdl.handle.net/11336/10749
identifier_str_mv Pota, Vincenzo; Brodie, Jean P. ; Bridges, Terry ; Strader, Jay ; Romanowsky, Aaron J. ; et al.; A SLUGGS and Gemini/GMOS combined study of the elliptical galaxy M60: wide-field photometry and kinematics of the globular cluster system; Wiley; Monthly Notices Of The Royal Astronomical Society; 450; 3-2015; 1962-1983
0035-8711
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/arxiv/http://arxiv.org/abs/1503.07520
info:eu-repo/semantics/altIdentifier/url/http://mnras.oxfordjournals.org/content/450/2/1962
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stv677
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/zip
application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
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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score 12.993085

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