Mostrar el registro sencillo del ítem
dc.contributor.author
Utomo, Dyas
dc.contributor.author
Bolatto, Alberto
dc.contributor.author
Wong, Tony
dc.contributor.author
Ostriker, Eve C.
dc.contributor.author
Blitz, Leo
dc.contributor.author
Sanchez, Sebastian F.
dc.contributor.author
Colombo, Dario
dc.contributor.author
Leroy, Adam K.
dc.contributor.author
Cao, Yixian
dc.contributor.author
Dannerbauer, Helmut
dc.contributor.author
Garcia Benito, Ruben
dc.contributor.author
Husemann, Bernd
dc.contributor.author
Kalinova, Veselina
dc.contributor.author
Levy, Rebecca C.
dc.contributor.author
Mast, Damian
dc.contributor.author
Rosolowsky, Erik
dc.contributor.author
Vogel, Stuart N.
dc.date.available
2019-02-20T18:15:09Z
dc.date.issued
2017-11-01
dc.identifier.citation
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
dc.identifier.issn
0004-637X
dc.identifier.uri
http://hdl.handle.net/11336/70537
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
IOP Publishing
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
Galaxies: Star Formation
dc.subject
Galaxies: Structure
dc.subject
Ism: Abundances
dc.subject
Ism: Molecules
dc.subject.classification
Astronomía
dc.subject.classification
Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
The EDGE-CALIFA survey: Variations in the molecular gas depletion time in local galaxies
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-01-14T16:49:55Z
dc.journal.volume
849
dc.journal.number
1
dc.journal.pagination
26-26
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Utomo, Dyas. University of California at Berkeley; Estados Unidos
dc.description.fil
Fil: Bolatto, Alberto. University of Maryland; Estados Unidos
dc.description.fil
Fil: Wong, Tony. University of Illinois at Urbana; Estados Unidos
dc.description.fil
Fil: Ostriker, Eve C.. University of Princeton; Estados Unidos
dc.description.fil
Fil: Blitz, Leo. University of California at Berkeley; Estados Unidos
dc.description.fil
Fil: Sanchez, Sebastian F.. Universidad Nacional Autónoma de México; México
dc.description.fil
Fil: Colombo, Dario. Max Planck Institute for Radio Astronomy; Alemania
dc.description.fil
Fil: Leroy, Adam K.. Ohio State University; Estados Unidos
dc.description.fil
Fil: Cao, Yixian. University of Illinois at Urbana; Estados Unidos
dc.description.fil
Fil: Dannerbauer, Helmut. Instituto de Astrofísica de Canarias; España
dc.description.fil
Fil: Garcia Benito, Ruben. Instituto de Astrofísica de Andalucía; España
dc.description.fil
Fil: Husemann, Bernd. Max Planck Institute für Astronomie; Alemania
dc.description.fil
Fil: Kalinova, Veselina. Max Planck Institute for Radio Astronomy; Alemania
dc.description.fil
Fil: Levy, Rebecca C.. University of Maryland; Estados Unidos
dc.description.fil
Fil: Mast, Damian. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
dc.description.fil
Fil: Rosolowsky, Erik. University of Alberta; Canadá
dc.description.fil
Fil: Vogel, Stuart N.. University of Maryland; Estados Unidos
dc.journal.title
Astrophysical Journal
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.3847/1538-4357/aa88c0
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-4357/aa88c0
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1704.03481
Archivos asociados