e-MERLIN and VLBI observations of the luminous infrared galaxy IC 883: a nuclear starburst and an AGN candidate revealed
Context. The high star formation rates of luminous infrared galaxies (LIRGs) make them ideal places for core-collapse supernova (CCSN) searches. Massive star formation can often be found in coexistence with an active galactic nucleus (AGN), contributing jointly to the energy source of LIRGs. At radi...
| Autores: | , , , , , , , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2012 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/420450 |
| Acceso en línea: | http://hdl.handle.net/10261/420450 |
| Access Level: | acceso abierto |
| Palabra clave: | Galaxies: starburst Galaxies: individual: IC 883 Radio lines: stars Radiation mechanisms: non-thermal |
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| dc.title.none.fl_str_mv |
e-MERLIN and VLBI observations of the luminous infrared galaxy IC 883: a nuclear starburst and an AGN candidate revealed |
| title |
e-MERLIN and VLBI observations of the luminous infrared galaxy IC 883: a nuclear starburst and an AGN candidate revealed |
| spellingShingle |
e-MERLIN and VLBI observations of the luminous infrared galaxy IC 883: a nuclear starburst and an AGN candidate revealed Romero-Cañizales, Cristina Galaxies: starburst Galaxies: individual: IC 883 Radio lines: stars Radiation mechanisms: non-thermal |
| title_short |
e-MERLIN and VLBI observations of the luminous infrared galaxy IC 883: a nuclear starburst and an AGN candidate revealed |
| title_full |
e-MERLIN and VLBI observations of the luminous infrared galaxy IC 883: a nuclear starburst and an AGN candidate revealed |
| title_fullStr |
e-MERLIN and VLBI observations of the luminous infrared galaxy IC 883: a nuclear starburst and an AGN candidate revealed |
| title_full_unstemmed |
e-MERLIN and VLBI observations of the luminous infrared galaxy IC 883: a nuclear starburst and an AGN candidate revealed |
| title_sort |
e-MERLIN and VLBI observations of the luminous infrared galaxy IC 883: a nuclear starburst and an AGN candidate revealed |
| dc.creator.none.fl_str_mv |
Romero-Cañizales, Cristina Pérez-Torres, Miguel A. Alberdi, Antxón Argo, M. K. Beswick, R. J. Kankare, E. Batejat, F. Efstathiou, A. Mattila, S. Conway, J. E. Garrington, S. T. Muxlow, T. W. B. Ryder, S. D. Väisänen, P. |
| author |
Romero-Cañizales, Cristina |
| author_facet |
Romero-Cañizales, Cristina Pérez-Torres, Miguel A. Alberdi, Antxón Argo, M. K. Beswick, R. J. Kankare, E. Batejat, F. Efstathiou, A. Mattila, S. Conway, J. E. Garrington, S. T. Muxlow, T. W. B. Ryder, S. D. Väisänen, P. |
| author_role |
author |
| author2 |
Pérez-Torres, Miguel A. Alberdi, Antxón Argo, M. K. Beswick, R. J. Kankare, E. Batejat, F. Efstathiou, A. Mattila, S. Conway, J. E. Garrington, S. T. Muxlow, T. W. B. Ryder, S. D. Väisänen, P. |
| author2_role |
author author author author author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
European Commission Ministerio de Ciencia e Innovación (España) Academy of Finland Finnish Academy of Science and Letters Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] |
| dc.subject.none.fl_str_mv |
Galaxies: starburst Galaxies: individual: IC 883 Radio lines: stars Radiation mechanisms: non-thermal |
| topic |
Galaxies: starburst Galaxies: individual: IC 883 Radio lines: stars Radiation mechanisms: non-thermal |
| description |
Context. The high star formation rates of luminous infrared galaxies (LIRGs) make them ideal places for core-collapse supernova (CCSN) searches. Massive star formation can often be found in coexistence with an active galactic nucleus (AGN), contributing jointly to the energy source of LIRGs. At radio frequencies, where light is unaffected by dust extinction, it is possible to detect compact components within the innermost LIRG nuclear regions, such as SNe and SN remnants, as well as AGN buried deep in the LIRG nuclei. Aims. Our study of the LIRG IC 883 aims at: (i) investigating the parsec-scale radio structure of the (circum-)nuclear regions of IC 883; (ii) detecting at radio frequencies the two recently reported circumnuclear SNe 2010cu and 2011hi, which were discovered by near-IR (NIR) adaptive optics observations of IC 883; and (iii) further investigating the nature of SN 2011hi at NIR wavelengths. Methods. We used the electronic European very long baseline interferometry (VLBI) Network (e-EVN) at 5 GHz, and the electronic Multi-Element Remotely Linked Interferometer Network (e-MERLIN) at 6.9 GHz, to observe contemporaneously the LIRG IC 883 at high angular-resolution (from tens to hundreds of milliarcsec) and with high sensitivity (<70 μJy), complemented by archival VLBI data at 5 GHz and 8.4 GHz. We also used the Gemini North telescope to obtain late-time JHK photometry for SN 2011hi. Results. The circumnuclear regions traced by e-MERLIN at 6.9 GHz have an extension of ∼ 1 kpc, at a position angle of 130°, and show a striking double-sided structure, which very likely corresponds to a warped rotating ring, in agreement with previous studies. Our e-EVN observations at 5 GHz and complementary archival VLBI data at 5 GHz and 8.4 GHz, reveal various milliarcsec compact components in the nucleus of IC 883. A single compact source, an AGN candidate, dominates the emission at both nuclear and circumnuclear scales, as imaged with the e-EVN and e-MERLIN, respectively. The other milliarcsec components are strongly indicative of ongoing nuclear CCSN activity. Our e-EVN observations also provided upper limits to the radio luminosity of the two SNe in IC 883 recently discovered at NIR wavelengths. We refine the classification of SN 2011hi as a Type IIP SN according to our latest epoch of Gemini North observations acquired in 2012, in agreement with a low-luminosity radio SN nature. We estimate a CCSN rate lower limit of 1.1 -0.6 +1.3 yr -1 for the entire galaxy, based on three nuclear radio SNe and the circumnuclear SNe 2010cu and 2011hi. © 2012 ESO. |
| publishDate |
2012 |
| dc.date.none.fl_str_mv |
2012 2026 2026 |
| 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/10261/420450 |
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http://hdl.handle.net/10261/420450 |
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Inglés |
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Inglés |
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info:eu-repo/semantics/openAccess |
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openAccess |
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EDP Sciences |
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EDP Sciences |
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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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1869411185288282112 |
| spelling |
e-MERLIN and VLBI observations of the luminous infrared galaxy IC 883: a nuclear starburst and an AGN candidate revealedRomero-Cañizales, CristinaPérez-Torres, Miguel A.Alberdi, AntxónArgo, M. K.Beswick, R. J.Kankare, E.Batejat, F.Efstathiou, A.Mattila, S.Conway, J. E.Garrington, S. T.Muxlow, T. W. B.Ryder, S. D.Väisänen, P.Galaxies: starburstGalaxies: individual: IC 883Radio lines: starsRadiation mechanisms: non-thermalContext. The high star formation rates of luminous infrared galaxies (LIRGs) make them ideal places for core-collapse supernova (CCSN) searches. Massive star formation can often be found in coexistence with an active galactic nucleus (AGN), contributing jointly to the energy source of LIRGs. At radio frequencies, where light is unaffected by dust extinction, it is possible to detect compact components within the innermost LIRG nuclear regions, such as SNe and SN remnants, as well as AGN buried deep in the LIRG nuclei. Aims. Our study of the LIRG IC 883 aims at: (i) investigating the parsec-scale radio structure of the (circum-)nuclear regions of IC 883; (ii) detecting at radio frequencies the two recently reported circumnuclear SNe 2010cu and 2011hi, which were discovered by near-IR (NIR) adaptive optics observations of IC 883; and (iii) further investigating the nature of SN 2011hi at NIR wavelengths. Methods. We used the electronic European very long baseline interferometry (VLBI) Network (e-EVN) at 5 GHz, and the electronic Multi-Element Remotely Linked Interferometer Network (e-MERLIN) at 6.9 GHz, to observe contemporaneously the LIRG IC 883 at high angular-resolution (from tens to hundreds of milliarcsec) and with high sensitivity (<70 μJy), complemented by archival VLBI data at 5 GHz and 8.4 GHz. We also used the Gemini North telescope to obtain late-time JHK photometry for SN 2011hi. Results. The circumnuclear regions traced by e-MERLIN at 6.9 GHz have an extension of ∼ 1 kpc, at a position angle of 130°, and show a striking double-sided structure, which very likely corresponds to a warped rotating ring, in agreement with previous studies. Our e-EVN observations at 5 GHz and complementary archival VLBI data at 5 GHz and 8.4 GHz, reveal various milliarcsec compact components in the nucleus of IC 883. A single compact source, an AGN candidate, dominates the emission at both nuclear and circumnuclear scales, as imaged with the e-EVN and e-MERLIN, respectively. The other milliarcsec components are strongly indicative of ongoing nuclear CCSN activity. Our e-EVN observations also provided upper limits to the radio luminosity of the two SNe in IC 883 recently discovered at NIR wavelengths. We refine the classification of SN 2011hi as a Type IIP SN according to our latest epoch of Gemini North observations acquired in 2012, in agreement with a low-luminosity radio SN nature. We estimate a CCSN rate lower limit of 1.1 -0.6 +1.3 yr -1 for the entire galaxy, based on three nuclear radio SNe and the circumnuclear SNe 2010cu and 2011hi. © 2012 ESO.We thank the anonymous referee for his/her comments. The authors are thankful to the EVN directors for their rapid provision of target- of-opportunity observations. The European VLBI Network is a joint facility of European, Chinese, South African, and other radio astronomy institutes funded by their national research councils. We also made use of observations with e-MERLIN, the UK’s facility for high resolution radio astronomy observations, operated by The University of Manchester for the Science and Technology Facilities Council; and observations obtained at the Gemini Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini part- nership: the National Science Foundation (US), the Science and Technology Facilities Council (UK), the National Research Council (Canada), CONICYT (Chile), the Australian Research Council (Australia), Ministério da Ciência e Tecnologia (Brazil), and Ministerio de Ciencia, Tecnología e Innovación Productiva (Argentina). This article is also based on observations made with the Very Long Baseline Array (VLBA) of the National Radio Astronomy Observatory (NRAO); the NRAO is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. This work made use of the Swinburne University of Technology software corre- lator, developed as part of the Australian Major National Research Facilities Programme and operated under licence. Our work is supported by the European Community Framework Programme 7, Advanced Radio Astronomy in Europe, grant agreement No. 227290. C.R.-C., M.A.P.-T. and A.A. acknowledge finan- cial support from the Spanish MICINN through grant AYA2009-13036-C02-01, co-funded with FEDER funds. S.M., E.K. and C.R.-C. acknowledge financial support from the Academy of Finland (project: 8120503). E.K. acknowledges support from the Finnish Academy of Science and Letters (Vilho, Yrjö and Kalle Väisälä Foundation).Peer reviewedEDP SciencesEuropean CommissionMinisterio de Ciencia e Innovación (España)Academy of FinlandFinnish Academy of Science and LettersConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202620262012info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/420450reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/FP7/227290info:eu-repo/grantAgreement/MICINN//AYA2009-13036-C02-01http://dx.doi.org/10.1051/0004-6361/201218816Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4204502026-05-22T06:33:51Z |
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15.811543 |