The EDGE-CALIFA survey: Variations in the molecular gas depletion time in local galaxies
- Autores
- Utomo, Dyas; Bolatto, Alberto; Wong, Tony; Ostriker, Eve C.; Blitz, Leo; Sanchez, Sebastian F.; Colombo, Dario; Leroy, Adam K.; Cao, Yixian; Dannerbauer, Helmut; Garcia Benito, Ruben; Husemann, Bernd; Kalinova, Veselina; Levy, Rebecca C.; Mast, Damian; Rosolowsky, Erik; Vogel, Stuart N.
- Año de publicación
- 2017
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We present results from the EDGE survey, a spatially resolved CO(1-0) follow-up to CALIFA, an optical Integral Field Unit survey of local galaxies. By combining the data products of EDGE and CALIFA, we study the variation in molecular gas depletion time (τdep) on kiloparsec scales in 52 galaxies. We divide each galaxy into two parts: The center, defined as the region within 0.1 R25, and the disk, defined as the region between 0.1 and 0.7 R25. We find that 14 galaxies show a shorter τdep (∼1 Gyr) in the center relative to that in the disk (τdep ∼ 2.4 Gyr), which means the central region in those galaxies is more efficient at forming stars per unit molecular gas mass. This finding implies that the centers with shorter τdep resemble the intermediate regime between galactic disks and starburst galaxies. Furthermore, the central drop in τdep is correlated with a central increase in the stellar surface density, suggesting that a shorter τdep is associated with molecular gas compression by the stellar gravitational potential. We argue that varying the CO-To-H2 conversion factor only exaggerates the central drop of τdep.
Fil: Utomo, Dyas. University of California at Berkeley; Estados Unidos
Fil: Bolatto, Alberto. University of Maryland; Estados Unidos
Fil: Wong, Tony. University of Illinois at Urbana; Estados Unidos
Fil: Ostriker, Eve C.. University of Princeton; Estados Unidos
Fil: Blitz, Leo. University of California at Berkeley; Estados Unidos
Fil: Sanchez, Sebastian F.. Universidad Nacional Autónoma de México; México
Fil: Colombo, Dario. Max Planck Institute for Radio Astronomy; Alemania
Fil: Leroy, Adam K.. Ohio State University; Estados Unidos
Fil: Cao, Yixian. University of Illinois at Urbana; Estados Unidos
Fil: Dannerbauer, Helmut. Instituto de Astrofísica de Canarias; España
Fil: Garcia Benito, Ruben. Instituto de Astrofísica de Andalucía; España
Fil: Husemann, Bernd. Max Planck Institute für Astronomie; Alemania
Fil: Kalinova, Veselina. Max Planck Institute for Radio Astronomy; Alemania
Fil: Levy, Rebecca C.. University of Maryland; Estados Unidos
Fil: Mast, Damian. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
Fil: Rosolowsky, Erik. University of Alberta; Canadá
Fil: Vogel, Stuart N.. University of Maryland; Estados Unidos - Materia
-
GALAXIES: STAR FORMATION
GALAXIES: STRUCTURE
ISM: ABUNDANCES
ISM: MOLECULES - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/70537
Ver los metadatos del registro completo
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oai:ri.conicet.gov.ar:11336/70537 |
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3498 |
network_name_str |
CONICET Digital (CONICET) |
spelling |
The EDGE-CALIFA survey: Variations in the molecular gas depletion time in local galaxiesUtomo, DyasBolatto, AlbertoWong, TonyOstriker, Eve C.Blitz, LeoSanchez, Sebastian F.Colombo, DarioLeroy, Adam K.Cao, YixianDannerbauer, HelmutGarcia Benito, RubenHusemann, BerndKalinova, VeselinaLevy, Rebecca C.Mast, DamianRosolowsky, ErikVogel, Stuart N.GALAXIES: STAR FORMATIONGALAXIES: STRUCTUREISM: ABUNDANCESISM: MOLECULEShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present results from the EDGE survey, a spatially resolved CO(1-0) follow-up to CALIFA, an optical Integral Field Unit survey of local galaxies. By combining the data products of EDGE and CALIFA, we study the variation in molecular gas depletion time (τdep) on kiloparsec scales in 52 galaxies. We divide each galaxy into two parts: The center, defined as the region within 0.1 R25, and the disk, defined as the region between 0.1 and 0.7 R25. We find that 14 galaxies show a shorter τdep (∼1 Gyr) in the center relative to that in the disk (τdep ∼ 2.4 Gyr), which means the central region in those galaxies is more efficient at forming stars per unit molecular gas mass. This finding implies that the centers with shorter τdep resemble the intermediate regime between galactic disks and starburst galaxies. Furthermore, the central drop in τdep is correlated with a central increase in the stellar surface density, suggesting that a shorter τdep is associated with molecular gas compression by the stellar gravitational potential. We argue that varying the CO-To-H2 conversion factor only exaggerates the central drop of τdep.Fil: Utomo, Dyas. University of California at Berkeley; Estados UnidosFil: Bolatto, Alberto. University of Maryland; Estados UnidosFil: Wong, Tony. University of Illinois at Urbana; Estados UnidosFil: Ostriker, Eve C.. University of Princeton; Estados UnidosFil: Blitz, Leo. University of California at Berkeley; Estados UnidosFil: Sanchez, Sebastian F.. Universidad Nacional Autónoma de México; MéxicoFil: Colombo, Dario. Max Planck Institute for Radio Astronomy; AlemaniaFil: Leroy, Adam K.. Ohio State University; Estados UnidosFil: Cao, Yixian. University of Illinois at Urbana; Estados UnidosFil: Dannerbauer, Helmut. Instituto de Astrofísica de Canarias; EspañaFil: Garcia Benito, Ruben. Instituto de Astrofísica de Andalucía; EspañaFil: Husemann, Bernd. Max Planck Institute für Astronomie; AlemaniaFil: Kalinova, Veselina. Max Planck Institute for Radio Astronomy; AlemaniaFil: Levy, Rebecca C.. University of Maryland; Estados UnidosFil: Mast, Damian. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; ArgentinaFil: Rosolowsky, Erik. University of Alberta; CanadáFil: Vogel, Stuart N.. University of Maryland; Estados UnidosIOP Publishing2017-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/70537Utomo, Dyas; Bolatto, Alberto; Wong, Tony; Ostriker, Eve C.; Blitz, Leo; et al.; The EDGE-CALIFA survey: Variations in the molecular gas depletion time in local galaxies; IOP Publishing; Astrophysical Journal; 849; 1; 1-11-2017; 26-260004-637XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4357/aa88c0info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-4357/aa88c0info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1704.03481info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:29:04Zoai:ri.conicet.gov.ar:11336/70537instacron: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 10:29:04.903CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
The EDGE-CALIFA survey: Variations in the molecular gas depletion time in local galaxies |
title |
The EDGE-CALIFA survey: Variations in the molecular gas depletion time in local galaxies |
spellingShingle |
The EDGE-CALIFA survey: Variations in the molecular gas depletion time in local galaxies Utomo, Dyas GALAXIES: STAR FORMATION GALAXIES: STRUCTURE ISM: ABUNDANCES ISM: MOLECULES |
title_short |
The EDGE-CALIFA survey: Variations in the molecular gas depletion time in local galaxies |
title_full |
The EDGE-CALIFA survey: Variations in the molecular gas depletion time in local galaxies |
title_fullStr |
The EDGE-CALIFA survey: Variations in the molecular gas depletion time in local galaxies |
title_full_unstemmed |
The EDGE-CALIFA survey: Variations in the molecular gas depletion time in local galaxies |
title_sort |
The EDGE-CALIFA survey: Variations in the molecular gas depletion time in local galaxies |
dc.creator.none.fl_str_mv |
Utomo, Dyas Bolatto, Alberto Wong, Tony Ostriker, Eve C. Blitz, Leo Sanchez, Sebastian F. Colombo, Dario Leroy, Adam K. Cao, Yixian Dannerbauer, Helmut Garcia Benito, Ruben Husemann, Bernd Kalinova, Veselina Levy, Rebecca C. Mast, Damian Rosolowsky, Erik Vogel, Stuart N. |
author |
Utomo, Dyas |
author_facet |
Utomo, Dyas Bolatto, Alberto Wong, Tony Ostriker, Eve C. Blitz, Leo Sanchez, Sebastian F. Colombo, Dario Leroy, Adam K. Cao, Yixian Dannerbauer, Helmut Garcia Benito, Ruben Husemann, Bernd Kalinova, Veselina Levy, Rebecca C. Mast, Damian Rosolowsky, Erik Vogel, Stuart N. |
author_role |
author |
author2 |
Bolatto, Alberto Wong, Tony Ostriker, Eve C. Blitz, Leo Sanchez, Sebastian F. Colombo, Dario Leroy, Adam K. Cao, Yixian Dannerbauer, Helmut Garcia Benito, Ruben Husemann, Bernd Kalinova, Veselina Levy, Rebecca C. Mast, Damian Rosolowsky, Erik Vogel, Stuart N. |
author2_role |
author author author author author author author author author author author author author author author author |
dc.subject.none.fl_str_mv |
GALAXIES: STAR FORMATION GALAXIES: STRUCTURE ISM: ABUNDANCES ISM: MOLECULES |
topic |
GALAXIES: STAR FORMATION GALAXIES: STRUCTURE ISM: ABUNDANCES ISM: MOLECULES |
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 results from the EDGE survey, a spatially resolved CO(1-0) follow-up to CALIFA, an optical Integral Field Unit survey of local galaxies. By combining the data products of EDGE and CALIFA, we study the variation in molecular gas depletion time (τdep) on kiloparsec scales in 52 galaxies. We divide each galaxy into two parts: The center, defined as the region within 0.1 R25, and the disk, defined as the region between 0.1 and 0.7 R25. We find that 14 galaxies show a shorter τdep (∼1 Gyr) in the center relative to that in the disk (τdep ∼ 2.4 Gyr), which means the central region in those galaxies is more efficient at forming stars per unit molecular gas mass. This finding implies that the centers with shorter τdep resemble the intermediate regime between galactic disks and starburst galaxies. Furthermore, the central drop in τdep is correlated with a central increase in the stellar surface density, suggesting that a shorter τdep is associated with molecular gas compression by the stellar gravitational potential. We argue that varying the CO-To-H2 conversion factor only exaggerates the central drop of τdep. Fil: Utomo, Dyas. University of California at Berkeley; Estados Unidos Fil: Bolatto, Alberto. University of Maryland; Estados Unidos Fil: Wong, Tony. University of Illinois at Urbana; Estados Unidos Fil: Ostriker, Eve C.. University of Princeton; Estados Unidos Fil: Blitz, Leo. University of California at Berkeley; Estados Unidos Fil: Sanchez, Sebastian F.. Universidad Nacional Autónoma de México; México Fil: Colombo, Dario. Max Planck Institute for Radio Astronomy; Alemania Fil: Leroy, Adam K.. Ohio State University; Estados Unidos Fil: Cao, Yixian. University of Illinois at Urbana; Estados Unidos Fil: Dannerbauer, Helmut. Instituto de Astrofísica de Canarias; España Fil: Garcia Benito, Ruben. Instituto de Astrofísica de Andalucía; España Fil: Husemann, Bernd. Max Planck Institute für Astronomie; Alemania Fil: Kalinova, Veselina. Max Planck Institute for Radio Astronomy; Alemania Fil: Levy, Rebecca C.. University of Maryland; Estados Unidos Fil: Mast, Damian. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina Fil: Rosolowsky, Erik. University of Alberta; Canadá Fil: Vogel, Stuart N.. University of Maryland; Estados Unidos |
description |
We present results from the EDGE survey, a spatially resolved CO(1-0) follow-up to CALIFA, an optical Integral Field Unit survey of local galaxies. By combining the data products of EDGE and CALIFA, we study the variation in molecular gas depletion time (τdep) on kiloparsec scales in 52 galaxies. We divide each galaxy into two parts: The center, defined as the region within 0.1 R25, and the disk, defined as the region between 0.1 and 0.7 R25. We find that 14 galaxies show a shorter τdep (∼1 Gyr) in the center relative to that in the disk (τdep ∼ 2.4 Gyr), which means the central region in those galaxies is more efficient at forming stars per unit molecular gas mass. This finding implies that the centers with shorter τdep resemble the intermediate regime between galactic disks and starburst galaxies. Furthermore, the central drop in τdep is correlated with a central increase in the stellar surface density, suggesting that a shorter τdep is associated with molecular gas compression by the stellar gravitational potential. We argue that varying the CO-To-H2 conversion factor only exaggerates the central drop of τdep. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-11-01 |
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/11336/70537 Utomo, Dyas; Bolatto, Alberto; Wong, Tony; Ostriker, Eve C.; Blitz, Leo; et al.; The EDGE-CALIFA survey: Variations in the molecular gas depletion time in local galaxies; IOP Publishing; Astrophysical Journal; 849; 1; 1-11-2017; 26-26 0004-637X CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/70537 |
identifier_str_mv |
Utomo, Dyas; Bolatto, Alberto; Wong, Tony; Ostriker, Eve C.; Blitz, Leo; et al.; The EDGE-CALIFA survey: Variations in the molecular gas depletion time in local galaxies; IOP Publishing; Astrophysical Journal; 849; 1; 1-11-2017; 26-26 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/10.3847/1538-4357/aa88c0 info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-4357/aa88c0 info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1704.03481 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/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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1844614295750443008 |
score |
13.070432 |