Chemical and photometric evolution of extended ultraviolet disks: Optical spectroscopy of M83 (NGC 5236) and NGC 4625

20 pags., 7 figs., 8 tabs.

Detalles Bibliográficos
Autores: Gil de Paz, A., Madore, B. F., Boissier, S., Thilker, David, Bianchi, L., Sánchez Contreras, C., Barlow, T. A., Conrow, T., Forster, K., Friedman, P. G., Martin, D. C., Morrissey, P., Neff, S. G., Rich, R. M., Schiminovich, D., Seibert, M., Small, T., Donas, J., Heckman, T. M., Lee, Y.-W., Milliard, B., Szalay, Alexander S., Wyder, T. K., Yi, S.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2007
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/191273
Acceso en línea:http://hdl.handle.net/10261/191273
Access Level:acceso abierto
Palabra clave:H ii regions
Galaxies: evolution
Ultraviolet: galaxies
Techniques: spectroscopic
Galaxies: abundances
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repository_id_str
spelling Chemical and photometric evolution of extended ultraviolet disks: Optical spectroscopy of M83 (NGC 5236) and NGC 4625Gil de Paz, A.Madore, B. F.Boissier, S.Thilker, DavidBianchi, L.Sánchez Contreras, C.Barlow, T. A.Conrow, T.Forster, K.Friedman, P. G.Martin, D. C.Morrissey, P.Neff, S. G.Rich, R. M.Schiminovich, D.Seibert, M.Small, T.Donas, J.Heckman, T. M.Lee, Y.-W.Milliard, B.Szalay, Alexander S.Wyder, T. K.Yi, S.H ii regionsGalaxies: evolutionUltraviolet: galaxiesTechniques: spectroscopicGalaxies: abundances20 pags., 7 figs., 8 tabs.We present the results from the analysis of optical spectra of 31 Hα-selected regions in the extended UV (XUV) disks of M83 (NGC 5236) and NGC 4625 recently discovered by GALEX. The spectra were obtained using IMACS at the Las Campanas Observatory 6.5 m Magellan I telescope and COSMIC at the Palomar 200 inch (5 m) telescope, respectively, for M83 and NGC 4625. The line ratios measured indicate nebular oxygen abundances (derived from the R23 parameter) of the order of Z⊙/5-Z⊙/10. For most emission-line regions analyzed the line fluxes and ratios measured are best reproduced by models of photoionization by single stars with masses in the range 20-40 M⊙ and oxygen abundances comparable to those derived from the R23 parameter. We find indications for a relatively high N/O abundance ratio in the XUV disk of M83. Although the metallicities derived imply that these are not the first stars formed in the XUV disks, such a level of enrichment could be reached in young spiral disks only 1 Gyr after these first stars would have formed. The amount of gas in the XUV disks allows maintaining the current level of star formation for at least a few Gyr. © 2007. The American Astronomical Society. All rights reserved.GALEX (Galaxy Evolution Explorer) is a NASA Small Explorer, launched in 2003 April. We gratefully acknowledge NASA’s support for construction, operation, and science analysis for the GALEX mission, developed in cooperation with the Centre National d’Etudes Spatiales of France and the Korean Ministry of Science and Technology. A. G. d. P. is financed by the MAGPOP EU Marie Curie Research Training Network and partially by the Spanish Programa Nacional de Astronomıa y Astrofısica under grant AYA2003-01676. telescope.Peer ReviewedUniversity of Chicago PressMinistry of Education, Science and Technology (South Korea)European CommissionCentre National D'Etudes Spatiales (France)NASAMinisterio de Ciencia y Tecnología (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2019201920072019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/191273reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#MCyT/AYA2003-01676https://doi.org/10.1086/513730Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1912732026-05-22T06:33:51Z
dc.title.none.fl_str_mv Chemical and photometric evolution of extended ultraviolet disks: Optical spectroscopy of M83 (NGC 5236) and NGC 4625
title Chemical and photometric evolution of extended ultraviolet disks: Optical spectroscopy of M83 (NGC 5236) and NGC 4625
spellingShingle Chemical and photometric evolution of extended ultraviolet disks: Optical spectroscopy of M83 (NGC 5236) and NGC 4625
Gil de Paz, A.
H ii regions
Galaxies: evolution
Ultraviolet: galaxies
Techniques: spectroscopic
Galaxies: abundances
title_short Chemical and photometric evolution of extended ultraviolet disks: Optical spectroscopy of M83 (NGC 5236) and NGC 4625
title_full Chemical and photometric evolution of extended ultraviolet disks: Optical spectroscopy of M83 (NGC 5236) and NGC 4625
title_fullStr Chemical and photometric evolution of extended ultraviolet disks: Optical spectroscopy of M83 (NGC 5236) and NGC 4625
title_full_unstemmed Chemical and photometric evolution of extended ultraviolet disks: Optical spectroscopy of M83 (NGC 5236) and NGC 4625
title_sort Chemical and photometric evolution of extended ultraviolet disks: Optical spectroscopy of M83 (NGC 5236) and NGC 4625
dc.creator.none.fl_str_mv Gil de Paz, A.
Madore, B. F.
Boissier, S.
Thilker, David
Bianchi, L.
Sánchez Contreras, C.
Barlow, T. A.
Conrow, T.
Forster, K.
Friedman, P. G.
Martin, D. C.
Morrissey, P.
Neff, S. G.
Rich, R. M.
Schiminovich, D.
Seibert, M.
Small, T.
Donas, J.
Heckman, T. M.
Lee, Y.-W.
Milliard, B.
Szalay, Alexander S.
Wyder, T. K.
Yi, S.
author Gil de Paz, A.
author_facet Gil de Paz, A.
Madore, B. F.
Boissier, S.
Thilker, David
Bianchi, L.
Sánchez Contreras, C.
Barlow, T. A.
Conrow, T.
Forster, K.
Friedman, P. G.
Martin, D. C.
Morrissey, P.
Neff, S. G.
Rich, R. M.
Schiminovich, D.
Seibert, M.
Small, T.
Donas, J.
Heckman, T. M.
Lee, Y.-W.
Milliard, B.
Szalay, Alexander S.
Wyder, T. K.
Yi, S.
author_role author
author2 Madore, B. F.
Boissier, S.
Thilker, David
Bianchi, L.
Sánchez Contreras, C.
Barlow, T. A.
Conrow, T.
Forster, K.
Friedman, P. G.
Martin, D. C.
Morrissey, P.
Neff, S. G.
Rich, R. M.
Schiminovich, D.
Seibert, M.
Small, T.
Donas, J.
Heckman, T. M.
Lee, Y.-W.
Milliard, B.
Szalay, Alexander S.
Wyder, T. K.
Yi, S.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministry of Education, Science and Technology (South Korea)
European Commission
Centre National D'Etudes Spatiales (France)
NASA
Ministerio de Ciencia y Tecnología (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv H ii regions
Galaxies: evolution
Ultraviolet: galaxies
Techniques: spectroscopic
Galaxies: abundances
topic H ii regions
Galaxies: evolution
Ultraviolet: galaxies
Techniques: spectroscopic
Galaxies: abundances
description 20 pags., 7 figs., 8 tabs.
publishDate 2007
dc.date.none.fl_str_mv 2007
2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/191273
url http://hdl.handle.net/10261/191273
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
MCyT/AYA2003-01676
https://doi.org/10.1086/513730
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv University of Chicago Press
publisher.none.fl_str_mv University of Chicago Press
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812429

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