Embedded star formation in S^(4)G galaxy dust lanes
| dc.contributor.author | Gil De Paz, Armando | |
| dc.date.accessioned | 2023-06-19T14:58:36Z | |
| dc.date.available | 2023-06-19T14:58:36Z | |
| dc.date.issued | 2014-01-01 | |
| dc.description | © 2014. The American Astronomical Society. All rights reserved. Artículo firmado por 25 autores. B.G.E. is grateful to E. Mentuch for clarifications about the analysis method that her team proposed. E. A. and A. B. thank the CNES for financial support. We acknowledge financial support to the DAGAL network from the People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme FP7/2007-2013/under REA grant agreement number PITN-GA-2011-289313. This research made use of the NASA/IPAC Infrared Science Archive, which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. This work is based in part on observations made with the Spitzer Space Telescope, which is operated by the Jet Propulsion Laboratory, California Institute of Technology under a contract with NASA. This research made use of the NASA/IPAC Extragalactic Database, which is operated by JPL, Caltech, under contract with NASA. This research made use of data products from the Two Micron All Sky Survey, which is a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center/California Institute of Technology, funded by the National Aeronautics and Space Administration and the National Science Foundation. Funding for the SDSS and SDSS-II has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, the U.S. Department of Energy, the National Aeronautics and Space Administration, the Japanese Monbukagakusho, the Max Planck Society, and the Higher Education Funding Council for England. The SDSS Web site is http://www.sdss.org/. The SDSS is managed by the Astrophysical Research Consortium for the Participating Institutions. The Participating Institutions are the American Museum of Natural History, Astrophysical Institute Potsdam, University of Basel, University of Cambridge, Case Western Reserve University, University of Chicago, Drexel University, Fermilab, the Institute for Advanced Study, the Japan Participation Group, Johns Hopkins University, the Joint Institute for Nuclear Astrophysics, the Kavli Institute for Particle Astrophysics and Cosmology, the Korean Scientist Group, the Chinese Academy of Sciences (LAMOST), Los Alamos National Laboratory, the Max-Planck-Institute for Astronomy (MPIA), the Max-Planck-Institute for Astrophysics (MPA), New Mexico State University, Ohio State University, University of Pittsburgh, University of Portsmouth, Princeton University, the United States Naval Observatory, and the University of Washington. | |
| dc.description.abstract | Star-forming regions that are visible at 3.6 μm and Hα but not in the u, g, r, i, z bands of the Sloan Digital Sky Survey are measured in five nearby spiral galaxies to find extinctions averaging ~3.8 mag and stellar masses averaging ~5 × 10^4 M_☉. These regions are apparently young star complexes embedded in dark filamentary shock fronts connected with spiral arms. The associated cloud masses are ~10^7 M_☉. The conditions required to make such complexes are explored, including gravitational instabilities in spiral-shocked gas and compression of incident clouds. We find that instabilities are too slow for a complete collapse of the observed spiral filaments, but they could lead to star formation in the denser parts. Compression of incident clouds can produce a faster collapse but has difficulty explaining the semi-regular spacing of some regions along the arms. If gravitational instabilities are involved, then the condensations have the local Jeans mass. Also in this case, the near-simultaneous appearance of equally spaced complexes suggests that the dust lanes, and perhaps the arms too, are relatively young. | |
| dc.description.department | Depto. de Física de la Tierra y Astrofísica | |
| dc.description.faculty | Fac. de Ciencias Físicas | |
| dc.description.refereed | TRUE | |
| dc.description.sponsorship | Unión Europea. FP7 | |
| dc.description.sponsorship | Acciones Marie Curie DAGAL network from the People Programme (Marie Curie Actions) of the European Union | |
| dc.description.sponsorship | Centre National d'Études Spatiales (CNES), Francia | |
| dc.description.sponsorship | National Aeronautics and Space Administration (NASA) | |
| dc.description.sponsorship | National Science Foundation (NSF), EE.UU | |
| dc.description.sponsorship | Alfred P. Sloan Foundation | |
| dc.description.sponsorship | U.S. Department of Energy (EE.UU) | |
| dc.description.sponsorship | Monbukagakusho (Japón) | |
| dc.description.sponsorship | Max Planck Society | |
| dc.description.sponsorship | Higher Education Funding Council for England (RU) | |
| dc.description.sponsorship | American Museum of Natural History | |
| dc.description.sponsorship | Astrophysical Institute Potsdam (Alemania) | |
| dc.description.sponsorship | University of Basel | |
| dc.description.sponsorship | University of Cambridge | |
| dc.description.sponsorship | Case Western Reserve University | |
| dc.description.sponsorship | University of Chicago | |
| dc.description.sponsorship | Drexel University | |
| dc.description.sponsorship | Fermilab | |
| dc.description.sponsorship | Institute for Advanced Study | |
| dc.description.sponsorship | Japan Participation Group | |
| dc.description.sponsorship | Johns Hopkins University | |
| dc.description.sponsorship | Joint Institute for Nuclear Astrophysics | |
| dc.description.sponsorship | Kavli Institute for Particle Astrophysics and Cosmology | |
| dc.description.sponsorship | Korean Scientist Group | |
| dc.description.sponsorship | Chinese Academy of Sciences (LAMOST) | |
| dc.description.sponsorship | Los Alamos National Laboratory | |
| dc.description.sponsorship | Max-Planck-Institute for Astronomy (MPIA) | |
| dc.description.sponsorship | Max-Planck-Institute for Astrophysics (MPA) | |
| dc.description.sponsorship | New Mexico State University | |
| dc.description.sponsorship | Ohio State University | |
| dc.description.sponsorship | University of Pittsburgh | |
| dc.description.sponsorship | University of Portsmouth | |
| dc.description.sponsorship | Princeton University | |
| dc.description.sponsorship | United States Naval Observatory | |
| dc.description.sponsorship | University of Washington | |
| dc.description.status | pub | |
| dc.eprint.id | https://eprints.ucm.es/id/eprint/35014 | |
| dc.identifier.doi | 10.1088/0004-637X/780/1/32 | |
| dc.identifier.issn | 0004-637X | |
| dc.identifier.officialurl | http://dx.doi.org/10.1088/0004-637X/780/1/32 | |
| dc.identifier.relatedurl | http://iopscience.iop.org/ | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14352/35012 | |
| dc.issue.number | 1 | |
| dc.journal.title | Astrophysical journal | |
| dc.language.iso | eng | |
| dc.publisher | American Astronomical Society | |
| dc.relation.projectID | PITN-GA-2011 (289313) | |
| dc.rights.accessRights | open access | |
| dc.subject.cdu | 52 | |
| dc.subject.keyword | Nearby spiral galaxies | |
| dc.subject.keyword | Spitzer-space-telescope | |
| dc.subject.keyword | H-II regions | |
| dc.subject.keyword | Molecular clouds | |
| dc.subject.keyword | Pattern speed | |
| dc.subject.keyword | CO survey | |
| dc.subject.keyword | Stellar structure | |
| dc.subject.keyword | Interarm regions | |
| dc.subject.keyword | Interstellar gas | |
| dc.subject.keyword | Formation rates | |
| dc.subject.ucm | Astrofísica | |
| dc.subject.ucm | Astronomía (Física) | |
| dc.title | Embedded star formation in S^(4)G galaxy dust lanes | |
| dc.type | journal article | |
| dc.volume.number | 780 | |
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