Energetic nuclear transients in luminous and ultraluminous infrared galaxies

Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Detalles Bibliográficos
Autores: Reynolds, Thomas M., Mattila, S., Efstathiou, A., Kankare, E., Kool, E., Ryder, S., Peña-Moñino, Luis, Pérez-Torres, Miguel A.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/282882
Acceso en línea:http://hdl.handle.net/10261/282882
Access Level:acceso abierto
Palabra clave:Black hole physics
Galaxies: starburst
Galaxies: nuclei
Infrared: general
id ES_1167aecfa9bfd017529ec00c5f7edd6c
oai_identifier_str oai:digital.csic.es:10261/282882
network_acronym_str ES
network_name_str España
repository_id_str
dc.title.none.fl_str_mv Energetic nuclear transients in luminous and ultraluminous infrared galaxies
title Energetic nuclear transients in luminous and ultraluminous infrared galaxies
spellingShingle Energetic nuclear transients in luminous and ultraluminous infrared galaxies
Reynolds, Thomas M.
Black hole physics
Galaxies: starburst
Galaxies: nuclei
Infrared: general
title_short Energetic nuclear transients in luminous and ultraluminous infrared galaxies
title_full Energetic nuclear transients in luminous and ultraluminous infrared galaxies
title_fullStr Energetic nuclear transients in luminous and ultraluminous infrared galaxies
title_full_unstemmed Energetic nuclear transients in luminous and ultraluminous infrared galaxies
title_sort Energetic nuclear transients in luminous and ultraluminous infrared galaxies
dc.creator.none.fl_str_mv Reynolds, Thomas M.
Mattila, S.
Efstathiou, A.
Kankare, E.
Kool, E.
Ryder, S.
Peña-Moñino, Luis
Pérez-Torres, Miguel A.
author Reynolds, Thomas M.
author_facet Reynolds, Thomas M.
Mattila, S.
Efstathiou, A.
Kankare, E.
Kool, E.
Ryder, S.
Peña-Moñino, Luis
Pérez-Torres, Miguel A.
author_role author
author2 Mattila, S.
Efstathiou, A.
Kankare, E.
Kool, E.
Ryder, S.
Peña-Moñino, Luis
Pérez-Torres, Miguel A.
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
European Commission
Finnish Academy of Science and Letters
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Black hole physics
Galaxies: starburst
Galaxies: nuclei
Infrared: general
topic Black hole physics
Galaxies: starburst
Galaxies: nuclei
Infrared: general
description Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/282882
url http://hdl.handle.net/10261/282882
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MICINN//SEV-2017-0709
http://dx.doi.org/10.1051/0004-6361/202243289
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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spelling Energetic nuclear transients in luminous and ultraluminous infrared galaxiesReynolds, Thomas M.Mattila, S.Efstathiou, A.Kankare, E.Kool, E.Ryder, S.Peña-Moñino, LuisPérez-Torres, Miguel A.Black hole physicsGalaxies: starburstGalaxies: nucleiInfrared: generalOpen Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.Energetic nuclear outbursts have been discovered in luminous and ultraluminous infrared galaxies (U/LIRGs) at unexpectedly high rates. To investigate this population of transients, we performed a search in mid-IR data from the Wide-field Infrared Survey Explorer (WISE) satellite and its NEOWISE survey to detect and characterise luminous and smoothly evolving transients in a sample of 215 U/LIRGs. We report three new transients, all with ΔL >  1043 erg s−1, in addition to two previously known cases. Their host galaxies are all part of major galaxy mergers, and through radiative transfer model fitting we find that all have a significant contribution from an active galactic nucleus (AGN). We characterised the transients through measurements of their luminosities and resulting energetics, all of which are between 1050.9 erg and 1052.2 erg. The IR emission of the five transients was found to be consistent with re-radiation by the hot dust of emission at shorter wavelengths, presumably originating from an accretion event, onto the supermassive black hole. The corresponding transient rate of (1.6–4.6) × 10−3 yr−1 galaxy−1 is over an order of magnitude higher than the rate of large amplitude flares shown by AGN in the optical. We suggest that the observed transients are part of a dust-obscured population of tidal disruption events (TDEs) that have remained out of the reach of optical surveys due to the obscuring dust. In one case, this is supported by our radio observations. We also discuss other plausible explanations. The observed rate of events is significantly higher than optical TDE rates, which can be expected in U/LIRG hosts undergoing a major galaxy merger with increased stellar densities in the nuclear regions. Continued searches for such transients and their multi-wavelength follow-up is required to constrain their rate and nature. © T. M. Reynolds et al. 2022.T.M.R. acknowledges the financial support of the Jenny and Antti Wihuri foundation and the Vilho, Yrjö and Kalle Väisälä Foundation of the Finnish academy of Science and Letters. E.C.K. acknowledges support from the G.R.E.A.T research environment funded by Vetenskapsrådet, the Swedish Research Council, under project number 2016-06012, and support from The Wenner-Gren Foundations. This publication makes use of data products from the Wide-field Infrared Survey Explorer, which is a joint project of the University of California, Los Angeles, and the Jet Propulsion Laboratory/California Institute of Technology, and NEOWISE, which is a project of the Jet Propulsion Laboratory/California Institute of Technology. WISE and NEOWISE are funded by the National Aeronautics and Space Administration. This research has made use of the NASA/IPAC Infrared Science Archive, which is funded by the National Aeronautics and Space Administration and operated by the California Institute of Technology. This work is partially based on observations obtained as part of the VISTA Hemisphere Survey, ESO Progam, 179.A-2010 (PI: McMahon). This work is based in part on observations made with the Nordic Optical Telescope, owned in collaboration by the University of Turku and Aarhus University, and operated jointly by Aarhus University, the University of Turku and the University of Oslo, representing Denmark, Finland and Norway, the University of Iceland and Stockholm University at the Observatorio del Roque de los Muchachos, La Palma, Spain, of the Instituto de Astrofisica de Canarias. This work is partly based on the NUTS2 programme carried out at the NOT. NUTS2 is funded in part by the Instrument Center for Danish Astrophysics (IDA). The Australia Telescope Compact Array is part of the Australia Telescope National Facility (grid.421683.a) which is funded by the Australian Government for operation as a National Facility managed by CSIRO. We acknowledge the Gomeroi people as the traditional owners of the Observatory site. The Australian SKA Pathfinder is part of the Australia Telescope National Facility (grid.421683.a) which is managed by CSIRO. Operation of ASKAP is funded by the Australian Government with support from the National Collaborative Research Infrastructure Strategy. ASKAP uses the resources of the Pawsey Supercomputing Centre. Establishment of ASKAP, the Murchison Radio-astronomy Observatory and the Pawsey Supercomputing Centre are initiatives of the Australian Government, with support from the Government of Western Australia and the Science and Industry Endowment Fund. We acknowledge the Wajarri Yamatji people as the traditional owners of the Observatory site. This research made use of Astropy5, a community-developed core Python package for Astronomy (Astropy Collaboration 2013, 2018).With funding from the Spanish government through the Severo Ochoa Centre of Excellence accreditation SEV-2017-0709.Peer reviewedEDP SciencesMinisterio de Ciencia e Innovación (España)European CommissionFinnish Academy of Science and LettersConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202220222022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/282882reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MICINN//SEV-2017-0709http://dx.doi.org/10.1051/0004-6361/202243289Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2828822026-05-22T06:33:51Z
score 15,81155

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