Rapidly evolving transients in the Dark Energy Survey

M. Pursiainen; M. Childress; M. Smith; S. Prajs; M. Sullivan; T. M. Davis; R. J. Foley; J. Asorey; J. Calcino; D. Carollo; C. Curtin; C. B. D'Andrea; K. Glazebrook; C. Gutierrez; S. R. Hinton; J. K. Hoormann; C. Inserra; R. Kessler; A. King; K. Kuehn; G. F. Lewis; C. Lidman; E. Macaulay; A. Moller; R. C. Nichol; M. Sako; N. E. Sommer; E. Swann; B. E. Tucker; S. A. Uddin; P. Wiseman; B. Zhang; T. M. C. Abbott; F. B. Abdalla; S. Allam; J. Annis; S. Avila; D. Brooks; E. Buckley-Geer; D. L. Burke; A. Carnero Rosell; M. Carrasco Kind; J. Carretero; F. J. Castander; C. E. Cunha; C. Davis; J. De Vicente; H. T. Diehl; P. Doel; T. F. Eifler; B. Flaugher; P. Fosalba; J. Frieman; J. Garcia-Bellido; D. Gruen; R. A. Gruendl; G. Gutierrez; W. G. Hartley; D. L. Hollowood; K. Honscheid; D. J. James; T. Jeltema; N. Kuropatkin; T. S. Li; M. Lima; M. A. G. Maia; P. Martini; F. Menanteau; R. L. C. Ogando; A. A. Plazas; A. Roodman; E. Sanchez; V. Scarpine; R. Schindler; R. C. Smith; M. Soares-Santos; F. Sobreira; E. Suchyta; M. E. C. Swanson; G. Tarle; D. L. Tucker; A. R. Walker; DES Collaboration

doi:10.1093/mnras/sty2309

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Rapidly evolving transients in the Dark Energy Survey

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Rapidly evolving transients in the Dark Energy Survey

M. Pursiainen, M. Childress, M. Smith, S. Prajs, M. Sullivan, T. M. Davis, R. J. Foley, J. Asorey, J. Calcino, D. Carollo, …

Monthly notices of the Royal Astronomical Society, Vol.481(1), pp.894-917

21/11/2018

DOI: https://doi.org/10.1093/mnras/sty2309

Abstract

Astronomy & Astrophysics

Science & Technology

Physical Sciences

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 less than or similar to 10 d and exponential decline in less than or similar to 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 > M-g > -22.25). The multiband photometry is well fit by a blackbody up to few weeks after peak. The events appear to be hot (T approximate to 10 000-30 000 K) and large (R approximate to 10(14) -2 x 10(15) 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.

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Title: Rapidly evolving transients in the Dark Energy Survey
Creators: M. Pursiainen - University of Southampton
M. Childress - University of Southampton
M. Smith - University of Southampton
S. Prajs - University of Southampton
M. Sullivan - University of Southampton
T. M. Davis - ACT
R. J. Foley - Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA
J. Asorey - ACT
J. Calcino - University of Queensland
D. Carollo - ACT
C. Curtin - Swinburne University of Technology
C. B. D'Andrea - Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA
K. Glazebrook - Swinburne University of Technology
C. Gutierrez - University of Southampton
S. R. Hinton - University of Queensland
J. K. Hoormann - University of Queensland
C. Inserra - University of Southampton
R. Kessler - University of Chicago
A. King - University of Queensland
K. Kuehn - Australian Astron Observ, N Ryde, NSW 2113, Australia
G. F. Lewis - University of Sydney
C. Lidman - Australian Astron Observ, N Ryde, NSW 2113, Australia
E. Macaulay - University of Queensland
A. Moller - ACT
R. C. Nichol - University of Portsmouth
M. Sako - Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA
N. E. Sommer - ACT
E. Swann - University of Portsmouth
B. E. Tucker - ACT
S. A. Uddin - ACT
P. Wiseman - University of Southampton
B. Zhang - ACT
T. M. C. Abbott - Natl Opt Astron Observ, Cerro Tololo Interamer Observ, Casilla 603, La Serena, Chile
F. B. Abdalla - UCL, Dept Phys, Astron, Gower St, London WC1E 6BT, England
S. Allam - Fermi National Accelerator Laboratory
J. Annis - Fermi National Accelerator Laboratory
S. Avila - University of Portsmouth
D. Brooks - UCL, Dept Phys, Astron, Gower St, London WC1E 6BT, England
E. Buckley-Geer - Fermi National Accelerator Laboratory
D. L. Burke - Menlo School
A. Carnero Rosell - Lab Interinst eAstron LIneA, Rua Gal Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ, Brazil
M. Carrasco Kind - University of Illinois Urbana-Champaign
J. Carretero - Universidade Aberta
F. J. Castander - IEEC, Barcelona 08193, Spain
C. E. Cunha
C. Davis
J. De Vicente - Ctr Invest Energet Medioambientales & Tecnol CIEM, Madrid 28040, Spain
H. T. Diehl - Fermi National Accelerator Laboratory
P. Doel - UCL, Dept Phys, Astron, Gower St, London WC1E 6BT, England
T. F. Eifler - Steward Observ, Dept Astron, 933 North Cherry Ave, Tucson, AZ 85721 USA
B. Flaugher - Fermi National Accelerator Laboratory
P. Fosalba - IEEC, Barcelona 08193, Spain
J. Frieman - University of Chicago
J. Garcia-Bellido - UAM, CSIC, Inst Fis Teor, E-28049 Madrid, Spain
D. Gruen - Menlo School
R. A. Gruendl - University of Illinois Urbana-Champaign
G. Gutierrez - Fermi National Accelerator Laboratory
W. G. Hartley - UCL, Dept Phys, Astron, Gower St, London WC1E 6BT, England
D. L. Hollowood - Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA
K. Honscheid - The Ohio State University
D. J. James - Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
T. Jeltema - Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA
N. Kuropatkin - Fermi National Accelerator Laboratory
T. S. Li - University of Chicago
M. Lima - Lab Interinst eAstron LIneA, Rua Gal Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ, Brazil
M. A. G. Maia - Laboratório Interinstitucional de e-Astronomia
P. Martini - The Ohio State University
F. Menanteau - University of Illinois Urbana-Champaign
R. L. C. Ogando - Laboratório Interinstitucional de e-Astronomia
A. A. Plazas - California Institute of Technology
A. Roodman - Menlo School
E. Sanchez - Ctr Invest Energet Medioambientales & Tecnol CIEM, Madrid 28040, Spain
V. Scarpine - Fermi National Accelerator Laboratory
R. Schindler - Menlo School
R. C. Smith - Natl Opt Astron Observ, Cerro Tololo Interamer Observ, Casilla 603, La Serena, Chile
M. Soares-Santos - Brandeis University
F. Sobreira - Laboratório Interinstitucional de e-Astronomia
E. Suchyta - Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA
M. E. C. Swanson - Clark Art Institute
G. Tarle - Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA
D. L. Tucker - Fermi National Accelerator Laboratory
A. R. Walker - Natl Opt Astron Observ, Cerro Tololo Interamer Observ, Casilla 603, La Serena, Chile
DES Collaboration
Publication Details: Monthly notices of the Royal Astronomical Society, Vol.481(1), pp.894-917
Publisher: Oxford Univ Press
Number of pages: 24
Date published: 21/11/2018
Grant note: 240672; 291329; 306478 / European Research Council under the European Union'; European Research Council (ERC) 097.D-0709 / ESO Science Archive Facility U.S. Department of Energy; United States Department of Energy (DOE) Kavli Institute of Cosmological Physics at the University of Chicago CE110001020 / Australian Research Council Centre of Excellence for All-sky Astrophysics (CAAS-TRO); Australian Research Council Ministerio da Ciencia, Tecnologia e Inovacao; Spanish Government Ministry of Science and Education of Spain; Spanish Government Collaborating Institutions in the Dark Energy Survey 1720756 / Direct For Mathematical & Physical Scien; National Science Foundation (NSF); NSF - Directorate for Mathematical & Physical Sciences (MPS) 615929 / EU/FP7-ERC; European Commission Deutsche Forschungsgemeinschaft; German Research Foundation (DFG) U.S. National Science Foundation; National Science Foundation (NSF) AST-1138766; AST-1536171 / National Science Foundation; National Science Foundation (NSF) AYA2015-71825; ESP2015-66861; FPA2015-68048; SEV-2016-0588; SEV-2016-0597; MDM-2015-0509 / MINECO; Spanish Government Fundacao Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro; Fundacao Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio De Janeiro (FAPERJ) Financiadora de Estudos e Projetos; Financiadora de Inovacao e Pesquisa (Finep) Center for Cosmology and Astro-Particle Physics at the Ohio State University; Ohio State University Higher Education Funding Council for England; UK Research & Innovation (UKRI); Higher Education Funding Council for England (HEFCE) CERCA program of the Generalitat de Catalunya CE110001020 / Australian Research Council Centre of Excellence for All-sky Astrophysics (CAASTRO); Australian Research Council ERDF funds from the European Union Science and Technology Facilities Council of the United Kingdom; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) DE-AC02-07CH11359 / U.S. Department of Energy, Office of Science, Office of High Energy Physics; United States Department of Energy (DOE) 465376/2014-2 / Brazilian Instituto Nacional de Ciencia e Tecnologia (INCT) e-Universe (CNPq); Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ); Fundacao de Apoio a Pesquisa do Distrito Federal (FAPDF) ST/P000398/1 / UK Science and Technology Facilities Council (STFC); UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) ST/M002853/1; ST/J005428/1; ST/M007030/1; ST/K00090X/1; ST/L005573/1; ST/F002335/1; ST/K006797/1; ST/I001204/1; ST/P000398/1; ST/M001334/1 / STFC; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign Mitchell Institute for Fundamental Physics and Astronomy at Texas AM University Conselho Nacional de Desenvolvimento Cientifico e Tecnologico; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ)
Identifiers: 99783866602346
Academic Unit: Faculty of Engineering and Physical Sciences; FEPS Central Faculty Admin
Language: English
Resource Type: Journal article

Rapidly evolving transients in the Dark Energy Survey

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