Constraints on the Progenitor System and the Environs of SN 2014J from Deep Radio Observations
We report deep EVN and eMERLIN observations of the Type Ia SN 2014J in the nearby galaxy M82. Our observations represent, together with JVLA observations of SNe 2011fe and 2014J, the most sensitive radio studies of Type Ia SNe ever. By combining data and a proper modeling of the radio emission, we c...
| Autores: | , , , , , , , , , , , , , |
|---|---|
| Formato: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2014 |
| País: | España |
| Recursos: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/400218 |
| Acesso em linha: | http://hdl.handle.net/10261/400218 |
| Access Level: | acceso abierto |
| Palavra-chave: | Stars: mass-loss Supernovae: individual (SN2011fe, SN2014J) |
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Constraints on the Progenitor System and the Environs of SN 2014J from Deep Radio Observations |
| title |
Constraints on the Progenitor System and the Environs of SN 2014J from Deep Radio Observations |
| spellingShingle |
Constraints on the Progenitor System and the Environs of SN 2014J from Deep Radio Observations Pérez-Torres, Miguel A. Stars: mass-loss Supernovae: individual (SN2011fe, SN2014J) |
| title_short |
Constraints on the Progenitor System and the Environs of SN 2014J from Deep Radio Observations |
| title_full |
Constraints on the Progenitor System and the Environs of SN 2014J from Deep Radio Observations |
| title_fullStr |
Constraints on the Progenitor System and the Environs of SN 2014J from Deep Radio Observations |
| title_full_unstemmed |
Constraints on the Progenitor System and the Environs of SN 2014J from Deep Radio Observations |
| title_sort |
Constraints on the Progenitor System and the Environs of SN 2014J from Deep Radio Observations |
| dc.creator.none.fl_str_mv |
Pérez-Torres, Miguel A. Lundqvist, P. Beswick, Robert J. Björnsson, Claes-Ingvar Muxlow, T. W. B. Paragi, Zsolt Ryder, S. Alberdi, Antxón Fransson, Claes Marcaide, J.M. Martí-Vidal, Iván Ros, Eduardo Argo, Megan K. Guirado, J.C. |
| author |
Pérez-Torres, Miguel A. |
| author_facet |
Pérez-Torres, Miguel A. Lundqvist, P. Beswick, Robert J. Björnsson, Claes-Ingvar Muxlow, T. W. B. Paragi, Zsolt Ryder, S. Alberdi, Antxón Fransson, Claes Marcaide, J.M. Martí-Vidal, Iván Ros, Eduardo Argo, Megan K. Guirado, J.C. |
| author_role |
author |
| author2 |
Lundqvist, P. Beswick, Robert J. Björnsson, Claes-Ingvar Muxlow, T. W. B. Paragi, Zsolt Ryder, S. Alberdi, Antxón Fransson, Claes Marcaide, J.M. Martí-Vidal, Iván Ros, Eduardo Argo, Megan K. Guirado, J.C. |
| author2_role |
author author author author author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
Science and Technology Facilities Council (UK) European Commission Ministerio de Ciencia e Innovación (España) Swedish Research Council Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] |
| dc.subject.none.fl_str_mv |
Stars: mass-loss Supernovae: individual (SN2011fe, SN2014J) |
| topic |
Stars: mass-loss Supernovae: individual (SN2011fe, SN2014J) |
| description |
We report deep EVN and eMERLIN observations of the Type Ia SN 2014J in the nearby galaxy M82. Our observations represent, together with JVLA observations of SNe 2011fe and 2014J, the most sensitive radio studies of Type Ia SNe ever. By combining data and a proper modeling of the radio emission, we constrain the mass-loss rate from the progenitor system of SN 2014J to \dot{M} ≲ 7.0× 10-10 { {M⊙ yr-1}} (for a wind speed of 100 km s-1). If the medium around the supernova is uniform, then n ISM <~ 1.3 cm-3, which is the most stringent limit for the (uniform) density around a Type Ia SN. Our deep upper limits favor a double-degenerate (DD) scenario—involving two WD stars—for the progenitor system of SN 2014J, as such systems have less circumstellar gas than our upper limits. By contrast, most single-degenerate (SD) scenarios, i.e., the wide family of progenitor systems where a red giant, main-sequence, or sub-giant star donates mass to an exploding WD, are ruled out by our observations. (While completing our work, we noticed that a paper by Margutti et al. was submitted to The Astrophysical Journal. From a non-detection of X-ray emission from SN 2014J, the authors obtain limits of \dot{M} ≲ 1.2 × 10-9 M ⊙ yr-1 (for a wind speed of 100 km s-1) and n ISM <~ 3.5 cm-3, for the ρvpropr -2 wind and constant density cases, respectively. As these limits are less constraining than ours, the findings by Margutti et al. do not alter our conclusions. The X-ray results are, however, important to rule out free-free and synchrotron self-absorption as a reason for the radio non-detections.) Our estimates on the limits on the gas density surrounding SN2011fe, using the flux density limits from Chomiuk et al., agree well with their results. Although we discuss the possibilities of an SD scenario passing observational tests, as well as uncertainties in the modeling of the radio emission, the evidence from SNe 2011fe and 2014J points in the direction of a DD scenario for both. © 2014. The American Astronomical Society. |
| publishDate |
2014 |
| dc.date.none.fl_str_mv |
2014 2025 2025 |
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info:eu-repo/semantics/article http://purl.org/coar/resource_type/c_6501 Postprint info:eu-repo/semantics/acceptedVersion |
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article |
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acceptedVersion |
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http://hdl.handle.net/10261/400218 |
| url |
http://hdl.handle.net/10261/400218 |
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Inglés |
| language_invalid_str_mv |
Inglés |
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info:eu-repo/semantics/openAccess |
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openAccess |
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American Astronomical Society |
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American Astronomical Society |
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Constraints on the Progenitor System and the Environs of SN 2014J from Deep Radio ObservationsPérez-Torres, Miguel A.Lundqvist, P.Beswick, Robert J.Björnsson, Claes-IngvarMuxlow, T. W. B.Paragi, ZsoltRyder, S.Alberdi, AntxónFransson, ClaesMarcaide, J.M.Martí-Vidal, IvánRos, EduardoArgo, Megan K.Guirado, J.C.Stars: mass-lossSupernovae: individual (SN2011fe, SN2014J)We report deep EVN and eMERLIN observations of the Type Ia SN 2014J in the nearby galaxy M82. Our observations represent, together with JVLA observations of SNe 2011fe and 2014J, the most sensitive radio studies of Type Ia SNe ever. By combining data and a proper modeling of the radio emission, we constrain the mass-loss rate from the progenitor system of SN 2014J to \dot{M} ≲ 7.0× 10-10 { {M⊙ yr-1}} (for a wind speed of 100 km s-1). If the medium around the supernova is uniform, then n ISM <~ 1.3 cm-3, which is the most stringent limit for the (uniform) density around a Type Ia SN. Our deep upper limits favor a double-degenerate (DD) scenario—involving two WD stars—for the progenitor system of SN 2014J, as such systems have less circumstellar gas than our upper limits. By contrast, most single-degenerate (SD) scenarios, i.e., the wide family of progenitor systems where a red giant, main-sequence, or sub-giant star donates mass to an exploding WD, are ruled out by our observations. (While completing our work, we noticed that a paper by Margutti et al. was submitted to The Astrophysical Journal. From a non-detection of X-ray emission from SN 2014J, the authors obtain limits of \dot{M} ≲ 1.2 × 10-9 M ⊙ yr-1 (for a wind speed of 100 km s-1) and n ISM <~ 3.5 cm-3, for the ρvpropr -2 wind and constant density cases, respectively. As these limits are less constraining than ours, the findings by Margutti et al. do not alter our conclusions. The X-ray results are, however, important to rule out free-free and synchrotron self-absorption as a reason for the radio non-detections.) Our estimates on the limits on the gas density surrounding SN2011fe, using the flux density limits from Chomiuk et al., agree well with their results. Although we discuss the possibilities of an SD scenario passing observational tests, as well as uncertainties in the modeling of the radio emission, the evidence from SNe 2011fe and 2014J points in the direction of a DD scenario for both. © 2014. The American Astronomical Society.We are grateful to Carles Badenes for useful comments on the manuscript, to Ruben Herrero-Illana for Pythonic advice to ´ produce Figure 5, and to Vicent Peris and Oscar Brevia from ` the Observatorio Astronomico de Aras (Valencia, Spain) for the ´ optical image of M82 used in Figure 1. We acknowledge the eMERLIN and EVN programme committees, and the directors of the EVN stations, for supporting the radio observations of SN 2014J. The European VLBI Network (EVN) is a joint facility of European, Chinese, South African, and other radio astronomy institutes funded by their national research councils. The electronic Multi-Element Radio Linked Interferometer Network (eMERLIN) is the UK’s facility for high resolution radio astronomy observations, operated by The University of Manchester for the Science and Technology Facilities Council (STFC). The research leading to these results has received funding from the European Commission Seventh Framework Programme (FP/2007-2013) under grant agreement No. 283393 (RadioNet3). A.A., J.C.G., J.M.M., M.A.P.T., E.R., and I.M.V. acknowledge support from the Spanish MICINN through grants AYA2012-38491-C02-01 and AYA2012-38491-C02-02. P.L. acknowledges support from the Swedish Research Council. The research leading to these results has received funding from the European Commission Seventh Framework Programme (FP/ 2007-2013) under grant agreement No. 283393 (RadioNet3). Facilities: EVN, MERLINPeer reviewedAmerican Astronomical SocietyScience and Technology Facilities Council (UK)European CommissionMinisterio de Ciencia e Innovación (España)Swedish Research CouncilConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252014info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/400218reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/FP7/283393info:eu-repo/grantAgreement/AEI//AYA2012-38491-C02-01info:eu-repo/grantAgreement/AEI//AYA2012-38491-C02-02http://dx.doi.org/10.1088/0004-637X/792/1/38Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4002182026-05-22T06:33:51Z |
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15,811543 |