Long-term follow-up observations of extreme coronal line emitting galaxies
P. Clark et al.
| Autores: | , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/357403 |
| Acceso en línea: | http://hdl.handle.net/10261/357403 |
| Access Level: | acceso abierto |
| Palabra clave: | Galaxies: active Transients: tidal disruption events |
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oai:digital.csic.es:10261/357403 |
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| dc.title.none.fl_str_mv |
Long-term follow-up observations of extreme coronal line emitting galaxies |
| title |
Long-term follow-up observations of extreme coronal line emitting galaxies |
| spellingShingle |
Long-term follow-up observations of extreme coronal line emitting galaxies Clark, Peter Galaxies: active Transients: tidal disruption events |
| title_short |
Long-term follow-up observations of extreme coronal line emitting galaxies |
| title_full |
Long-term follow-up observations of extreme coronal line emitting galaxies |
| title_fullStr |
Long-term follow-up observations of extreme coronal line emitting galaxies |
| title_full_unstemmed |
Long-term follow-up observations of extreme coronal line emitting galaxies |
| title_sort |
Long-term follow-up observations of extreme coronal line emitting galaxies |
| dc.creator.none.fl_str_mv |
Clark, Peter Müller-Bravo, Tomás E. |
| author |
Clark, Peter |
| author_facet |
Clark, Peter Müller-Bravo, Tomás E. |
| author_role |
author |
| author2 |
Müller-Bravo, Tomás E. |
| author2_role |
author |
| dc.contributor.none.fl_str_mv |
Science and Technology Facilities Council (UK) Agencia Estatal de Investigación (España) Ministerio de Ciencia, Innovación y Universidades (España) Ministerio de Ciencia e Innovación (España) European Commission UK Space Agency National Science Foundation (US) NASA Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] |
| dc.subject.none.fl_str_mv |
Galaxies: active Transients: tidal disruption events |
| topic |
Galaxies: active Transients: tidal disruption events |
| description |
P. Clark et al. |
| publishDate |
2024 |
| dc.date.none.fl_str_mv |
2024 2024 2024 |
| 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 |
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article |
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publishedVersion |
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http://hdl.handle.net/10261/357403 |
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http://hdl.handle.net/10261/357403 |
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Inglés |
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Inglés |
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#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/H2020/948381 https://doi.org/10.1093/mnras/stae460 Sí |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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Oxford University Press |
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Oxford University Press |
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reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC instname:Consejo Superior de Investigaciones Científicas (CSIC) |
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Consejo Superior de Investigaciones Científicas (CSIC) |
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DIGITAL.CSIC. Repositorio Institucional del CSIC |
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DIGITAL.CSIC. Repositorio Institucional del CSIC |
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1869424821184495616 |
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Long-term follow-up observations of extreme coronal line emitting galaxiesClark, PeterMüller-Bravo, Tomás E.Galaxies: activeTransients: tidal disruption eventsP. Clark et al.We present new spectroscopic and photometric follow-up observations of the known sample of extreme coronal line-emitting galaxies (ECLEs) identified in the Sloan Digital Sky Survey (SDSS). With these new data, observations of the ECLE sample now span a period of two decades following their initial SDSS detections. We confirm the non-recurrence of the iron coronal line signatures in five of the seven objects, further supporting their identification as the transient light echoes of tidal disruption events (TDEs). Photometric observations of these objects in optical bands show little overall evolution. In contrast, mid-infrared (MIR) observations show ongoing long-term declines consistent with power-law decay. The remaining two objects had been classified as active galactic nuclei (AGNs) with unusually strong coronal lines rather than being TDE related, given the persistence of the coronal lines in earlier follow-up spectra. We confirm this classification, with our spectra continuing to show the presence of strong, unchanged coronal line features and AGN-like MIR colours and behaviour. We have constructed spectral templates of both subtypes of ECLE to aid in distinguishing the likely origin of newly discovered ECLEs. We highlight the need for higher cadence, and more rapid, follow-up observations of such objects to better constrain their properties and evolution. We also discuss the relationships between ECLEs, TDEs, and other identified transients having significant MIR variability.This work was supported by the Science & Technology Facilities Council (grants ST/S000550/1 and ST/W001225/1). It was also funded by ANID, Millennium Science Initiative, ICN12_009. TEMB acknowledges financial support from the Spanish Ministerio de Ciencia e Innovación (MCIN), the Agencia Estatal de Investigación (AEI) 10.13039/501100011033, and the European Union Next Generation EU/PRTR funds under the 2021 Juan de la Cierva program FJC2021-04. MN is supported by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement no. 948381) and by funding from the UK Space Agency. AVF’s group at U.C. Berkeley has received financial assistance from the Christopher R. Redlich Fund, Alan Eustace (WZ is a Eustace Specialist in Astronomy), Briggs and Kathleen Wood (TGB is a Wood Specialist in Astronomy), and many other donors. This material is based upon work supported by the U.S. Department of Energy (DOE), Office of Science, Office of High-Energy Physics, under contract no. DE-AC02-05CH11231, and by the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility under the same contract. Additional support for DESI was provided by the U.S. National Science Foundation (NSF), Division of Astronomical Sciences under contract no. AST-0950945 to the NSF’s National Optical-Infrared Astronomy Research Laboratory; the Science and Technology Facilities Council of the United Kingdom; the Gordon and Betty Moore Foundation; the Heising-Simons Foundation; the French Alternative Energies and Atomic Energy Commission (CEA); the National Council of Science and Technology of Mexico (CONACYT); the Ministry of Science and Innovation of Spain (MICINN).Peer reviewedOxford University PressScience and Technology Facilities Council (UK)Agencia Estatal de Investigación (España)Ministerio de Ciencia, Innovación y Universidades (España)Ministerio de Ciencia e Innovación (España)European CommissionUK Space AgencyNational Science Foundation (US)NASAConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/357403reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/H2020/948381https://doi.org/10.1093/mnras/stae460Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3574032026-05-22T06:33:51Z |
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15,81155 |