dc.contributor.author | Pursiainen, M. | |
dc.contributor.author | Childress, M. | |
dc.contributor.author | Smith, M. | |
dc.contributor.author | Prajs, S. | |
dc.contributor.author | Sullivan, M. | |
dc.contributor.author | Davis, T. M. | |
dc.contributor.author | Foley, R. J. | |
dc.contributor.author | Asorey, J. | |
dc.contributor.author | Calcino, J. | |
dc.contributor.author | Carollo, D. | |
dc.contributor.author | Curtin, C. | |
dc.contributor.author | D'Andrea, C. B. | |
dc.contributor.author | Glazebrook, K. | |
dc.contributor.author | Gutierrez, C. | |
dc.contributor.author | Hinton, S. R. | |
dc.contributor.author | Hoormann, J. K. | |
dc.contributor.author | Inserra, C. | |
dc.contributor.author | Kessler, R. | |
dc.contributor.author | King, A. | |
dc.contributor.author | Kuehn, K. | |
dc.contributor.author | Lewis, G. F. | |
dc.contributor.author | Lidman, C. | |
dc.contributor.author | Macaulay, E. | |
dc.contributor.author | Möller, A. | |
dc.contributor.author | Nichol, Robert C. | |
dc.contributor.author | Sako, M. | |
dc.contributor.author | Sommer, N. E. | |
dc.contributor.author | Swann, E. | |
dc.contributor.author | Tucker, B. E. | |
dc.contributor.author | Uddin, S. A. | |
dc.contributor.author | Wiseman, P. | |
dc.contributor.author | Zhang, B. | |
dc.contributor.author | Abbott, T. M.C. | |
dc.contributor.author | Abdalla, F. B. | |
dc.contributor.author | Allam, S. | |
dc.contributor.author | Annis, J. | |
dc.contributor.author | Avila, S. | |
dc.contributor.author | Brooks, D. | |
dc.contributor.author | Buckley-Geer, E. | |
dc.contributor.author | Burke, D. L. | |
dc.contributor.author | Rosell, A. Carnero | |
dc.contributor.author | Kind, M. Carrasco | |
dc.contributor.author | Carretero, J. | |
dc.contributor.author | Castander, F. J. | |
dc.contributor.author | Cunha, C. E. | |
dc.contributor.author | Davis, C. | |
dc.contributor.author | De Vicente, J. | |
dc.contributor.author | Diehl, H. T. | |
dc.contributor.author | Doel, P. | |
dc.contributor.author | Eifler, T. F. | |
dc.contributor.author | Flaugher, B. | |
dc.contributor.author | Fosalba, P. | |
dc.contributor.author | Frieman, J. | |
dc.contributor.author | García-Bellido Capdevila, Juan | |
dc.contributor.author | Gruen, D. | |
dc.contributor.author | Gruendl, R. A. | |
dc.contributor.author | Gutierrez, G. | |
dc.contributor.author | Hartley, W. G. | |
dc.contributor.author | Hollowood, D. L. | |
dc.contributor.author | Honscheid, K. | |
dc.contributor.author | James, D. J. | |
dc.contributor.author | Jeltema, T. | |
dc.contributor.author | Kuropatkin, N. | |
dc.contributor.author | Li, T. S. | |
dc.contributor.author | Lima, M. | |
dc.contributor.author | Maia, M. A.G. | |
dc.contributor.author | Martini, P. | |
dc.contributor.author | Menanteau, F. | |
dc.contributor.author | Ogando, R. L.C. | |
dc.contributor.author | Plazas, A. A. | |
dc.contributor.author | Roodman, A. | |
dc.contributor.author | Sánchez, E. | |
dc.date.accessioned | 2019-01-15T15:54:30Z | |
dc.date.available | 2019-01-15T15:54:30Z | |
dc.date.issued | 2018-08-29 | |
dc.identifier.citation | Monthly Notices of the Royal Astronomical Society 481.1 (2018): 894-917 | en_US |
dc.identifier.issn | 0035-8711 (print) | es_ES |
dc.identifier.issn | 1365-2966 (online) | es_ES |
dc.identifier.uri | http://hdl.handle.net/10486/686240 | |
dc.description | This article has been accepted for publication in Monthly Notices of Royal Astronomical Society © 2018 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. | en_US |
dc.description.abstract | We present the results of a search for rapidly evolving transients in the Dark Energy Survey Supernova Programme. These events are characterized by fast light-curve evolution (rise to peak in≲10 d and exponential decline in≲30 d after peak).We discovered 72 events, including 37 transients with a spectroscopic redshift from host galaxy spectral features. The 37 events increase the total number of rapid optical transients by more than a factor of two. They are found at a wide range of redshifts (0.05 < z < 1.56) and peak brightnesses (-15.75 > Mg > -22.25). The multiband photometry is well fit by a blackbody up to few weeks after peak. The events appear to be hot (T ≈ 10 000-30 000 K) and large (R ≈ 1014 - 2 × 1015 cm) at peak, and generally expand and cool in time, though some events show evidence for a receding photosphere with roughly constant temperature. Spectra taken around peak are dominated by a blue featureless continuum consistent with hot, optically thick ejecta. We compare our events with a previously suggested physical scenario involving shock breakout in an optically thick wind surrounding a core-collapse supernova, we conclude that current models for such a scenario might need an additional power source to describe the exponential decline. We find that these transients tend to favour star-forming host galaxies, which could be consistent with a core-collapse origin. However, more detailed modelling of the light curves is necessary to determine their physical origin. | en_US |
dc.description.sponsorship | We acknowledge support from EU/FP7-ERC grant no
[615929]. Based in part on data obtained from the ESO
Science Archive Facility under program 097.D-0709. Parts
of this research were conducted by the Australian Research
Council Centre of Excellence for All-sky Astrophysics
(CAASTRO), through project number CE110001020 Funding for the DES Projects has been provided by the U.S. Department of Energy, the U.S. National Science
Foundation, the Ministry of Science and Education of
Spain, the Science and Technology Facilities Council of the
United Kingdom, the Higher Education Funding Council for
England, the National Center for Supercomputing Applications
at the University of Illinois at Urbana-Champaign, the
Kavli Institute of Cosmological Physics at the University
of Chicago, the Center for Cosmology and Astro-Particle
Physics at the Ohio State University, the Mitchell Institute
for Fundamental Physics and Astronomy at Texas A&M
University, Financiadora de Estudos e Projetos, Fundacâo
Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio
de Janeiro, Conselho Nacional de Desenvolvimento Científico e Tecnológico and the Ministério da Ciência, Tecnologia e Inovaçâo, the Deutsche Forschungsgemeinschaft and the Collaborating Institutions in the Dark Energy Survey | en_US |
dc.format.extent | 25 pag. | es_ES |
dc.format.mimetype | application/pdf | en |
dc.language.iso | eng | en |
dc.publisher | Oxford University Press on behalf of the Royal Astronomical Society | en_US |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | en_US |
dc.rights | © 2018 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. | en_US |
dc.subject.other | Supernovae: general | en_US |
dc.title | Rapidly evolving transients in the Dark Energy Survey | en_US |
dc.type | article | en |
dc.subject.eciencia | Física | es_ES |
dc.relation.publisherversion | https://doi.org/10.1093/mnras/sty2309 | es_ES |
dc.identifier.doi | 10.1093/mnras/sty2309 | es_ES |
dc.identifier.publicationfirstpage | 894 | es_ES |
dc.identifier.publicationissue | 1 | es_ES |
dc.identifier.publicationlastpage | 917 | es_ES |
dc.identifier.publicationvolume | 481 | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/FP7/615929 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | en |
dc.rights.accessRights | openAccess | en |
dc.authorUAM | García-Bellido Capdevila, Juan (259823) | |
dc.facultadUAM | Facultad de Ciencias | |