The 1989 and 2015 outbursts of V404 Cygni: A global study of wind-related optical features

Mata Sánchez, D.; Muñoz-Darias, Teo; Casares, J.; Charles, P. A.; Armas Padilla, M.; Fernández-Ontiveros, Juan Antonio; Jiménez-Ibarra, F.; Jonker, Peter G.; Linares, Manuel; Torres, M. A. P.; Shaw, A. W.; Rodríguez-Gil, Pablo; Grunsven, T. van; Blay, Pere; Caballero-García, María Dolores; Castro-Tirado, Alberto J.; Chinchilla, P.; Farina, C.; Ferragamo, A.; López-Martínez, Francisco; Rubiño-Martín, J. A.; Suárez-Andrés, L.

The 1989 and 2015 outbursts of V404 Cygni: A global study of wind-related optical features

The black hole transient V404 Cygni exhibited a bright outburst in June 2015 that was intensively followed over a wide range of wavelengths. Our team obtained high time resolution optical spectroscopy (~90 s), which included a detailed coverage of the most active phase of the event. We present a dat...

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Autores:	Mata Sánchez, D., Muñoz-Darias, Teo, Casares, J., Charles, P. A., Armas Padilla, M., Fernández-Ontiveros, Juan Antonio, Jiménez-Ibarra, F., Jonker, Peter G., Linares, Manuel, Torres, M. A. P., Shaw, A. W., Rodríguez-Gil, Pablo, Grunsven, T. van, Blay, Pere, Caballero-García, María Dolores, Castro-Tirado, Alberto J., Chinchilla, P., Farina, C., Ferragamo, A., López-Martínez, Francisco, Rubiño-Martín, J. A., Suárez-Andrés, L.
Tipo de documento:	artigo
Estado:	Versão publicada
Data de publicação:	2018
País:	España
Recursos:	Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:	DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:	oai:digital.csic.es:10261/206957
Acesso em linha:	http://hdl.handle.net/10261/206957
Access Level:	Acceso aberto
Palavra-chave:	Accretion, accretion disks ISM: jets and outflows Stars: winds, outflows X-ray binaries

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network_acronym_str	ES
network_name_str	España
repository_id_str
dc.title.none.fl_str_mv	The 1989 and 2015 outbursts of V404 Cygni: A global study of wind-related optical features
title	The 1989 and 2015 outbursts of V404 Cygni: A global study of wind-related optical features
spellingShingle	The 1989 and 2015 outbursts of V404 Cygni: A global study of wind-related optical features Mata Sánchez, D. Accretion, accretion disks ISM: jets and outflows Stars: winds, outflows X-ray binaries
title_short	The 1989 and 2015 outbursts of V404 Cygni: A global study of wind-related optical features
title_full	The 1989 and 2015 outbursts of V404 Cygni: A global study of wind-related optical features
title_fullStr	The 1989 and 2015 outbursts of V404 Cygni: A global study of wind-related optical features
title_full_unstemmed	The 1989 and 2015 outbursts of V404 Cygni: A global study of wind-related optical features
title_sort	The 1989 and 2015 outbursts of V404 Cygni: A global study of wind-related optical features
dc.creator.none.fl_str_mv	Mata Sánchez, D. Muñoz-Darias, Teo Casares, J. Charles, P. A. Armas Padilla, M. Fernández-Ontiveros, Juan Antonio Jiménez-Ibarra, F. Jonker, Peter G. Linares, Manuel Torres, M. A. P. Shaw, A. W. Rodríguez-Gil, Pablo Grunsven, T. van Blay, Pere Caballero-García, María Dolores Castro-Tirado, Alberto J. Chinchilla, P. Farina, C. Ferragamo, A. López-Martínez, Francisco Rubiño-Martín, J. A. Suárez-Andrés, L.
author	Mata Sánchez, D.
author_facet	Mata Sánchez, D. Muñoz-Darias, Teo Casares, J. Charles, P. A. Armas Padilla, M. Fernández-Ontiveros, Juan Antonio Jiménez-Ibarra, F. Jonker, Peter G. Linares, Manuel Torres, M. A. P. Shaw, A. W. Rodríguez-Gil, Pablo Grunsven, T. van Blay, Pere Caballero-García, María Dolores Castro-Tirado, Alberto J. Chinchilla, P. Farina, C. Ferragamo, A. López-Martínez, Francisco Rubiño-Martín, J. A. Suárez-Andrés, L.
author_role	author
author2	Muñoz-Darias, Teo Casares, J. Charles, P. A. Armas Padilla, M. Fernández-Ontiveros, Juan Antonio Jiménez-Ibarra, F. Jonker, Peter G. Linares, Manuel Torres, M. A. P. Shaw, A. W. Rodríguez-Gil, Pablo Grunsven, T. van Blay, Pere Caballero-García, María Dolores Castro-Tirado, Alberto J. Chinchilla, P. Farina, C. Ferragamo, A. López-Martínez, Francisco Rubiño-Martín, J. A. Suárez-Andrés, L.
author2_role	author author author author author author author author author author author author author author author author author author author author author
dc.contributor.none.fl_str_mv	La Caixa Ministerio de Economía y Competitividad (España) European Commission Leverhulme Trust Natural Sciences and Engineering Research Council of Canada European Space Agency Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv	Accretion, accretion disks ISM: jets and outflows Stars: winds, outflows X-ray binaries
topic	Accretion, accretion disks ISM: jets and outflows Stars: winds, outflows X-ray binaries
description	The black hole transient V404 Cygni exhibited a bright outburst in June 2015 that was intensively followed over a wide range of wavelengths. Our team obtained high time resolution optical spectroscopy (~90 s), which included a detailed coverage of the most active phase of the event. We present a data base consisting of 651 optical spectra obtained during this event, that we combine with 58 spectra gathered during the fainter December 2015 sequel outburst, as well as with 57 spectra from the 1989 event.We previously reported the discovery of windrelated features (P-Cygni and broad-wing line profiles) during both 2015 outbursts. Here, we build diagnostic diagrams that enable us to study the evolution of typical emission line parameters, such as line fluxes and equivalent widths, and develop a technique to systematically detect outflow signatures. We find that these are present throughout the outburst, even at very low optical fluxes, and that both types of outflow features are observed simultaneously in some spectra, confirming the idea of a common origin. We also show that the nebular phases depict loop patterns in many diagnostic diagrams, while P-Cygni profiles are highly variable on time-scales of minutes. The comparison between the three outbursts reveals that the spectra obtained during June and December 2015 share many similarities, while those from 1989 exhibit narrower emission lines and lower wind terminal velocities. The diagnostic diagrams presented in this work have been produced using standard measurement techniques and thus may be applied to other active low-mass X-ray binaries. © 2018 The Author(s).
publishDate	2018
dc.date.none.fl_str_mv	2018 2020 2020 2020
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/10261/206957
url	http://hdl.handle.net/10261/206957
dc.language.none.fl_str_mv	Inglés
language_invalid_str_mv	Inglés
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dc.rights.none.fl_str_mv	info:eu-repo/semantics/openAccess
eu_rights_str_mv	openAccess
dc.publisher.none.fl_str_mv	Oxford University Press
publisher.none.fl_str_mv	Oxford University Press
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	The 1989 and 2015 outbursts of V404 Cygni: A global study of wind-related optical featuresMata Sánchez, D.Muñoz-Darias, TeoCasares, J.Charles, P. A.Armas Padilla, M.Fernández-Ontiveros, Juan AntonioJiménez-Ibarra, F.Jonker, Peter G.Linares, ManuelTorres, M. A. P.Shaw, A. W.Rodríguez-Gil, PabloGrunsven, T. vanBlay, PereCaballero-García, María DoloresCastro-Tirado, Alberto J.Chinchilla, P.Farina, C.Ferragamo, A.López-Martínez, FranciscoRubiño-Martín, J. A.Suárez-Andrés, L.Accretion, accretion disksISM: jets and outflowsStars: winds, outflowsX-ray binariesThe black hole transient V404 Cygni exhibited a bright outburst in June 2015 that was intensively followed over a wide range of wavelengths. Our team obtained high time resolution optical spectroscopy (~90 s), which included a detailed coverage of the most active phase of the event. We present a data base consisting of 651 optical spectra obtained during this event, that we combine with 58 spectra gathered during the fainter December 2015 sequel outburst, as well as with 57 spectra from the 1989 event.We previously reported the discovery of windrelated features (P-Cygni and broad-wing line profiles) during both 2015 outbursts. Here, we build diagnostic diagrams that enable us to study the evolution of typical emission line parameters, such as line fluxes and equivalent widths, and develop a technique to systematically detect outflow signatures. We find that these are present throughout the outburst, even at very low optical fluxes, and that both types of outflow features are observed simultaneously in some spectra, confirming the idea of a common origin. We also show that the nebular phases depict loop patterns in many diagnostic diagrams, while P-Cygni profiles are highly variable on time-scales of minutes. The comparison between the three outbursts reveals that the spectra obtained during June and December 2015 share many similarities, while those from 1989 exhibit narrower emission lines and lower wind terminal velocities. The diagnostic diagrams presented in this work have been produced using standard measurement techniques and thus may be applied to other active low-mass X-ray binaries. © 2018 The Author(s).DMS acknowledges Fundacion La Caixa for the financial support received in the form of a PhD contract. TMD acknowledges support via a Ramon y Cajal Fellowship (RYC-2015-18148) and the Spanish MINECO project AYA2017-83216-P. JC acknowledges financial support from the Spanish Ministry of Economy, Industry and Competitiveness (MINECO) under the 2015 Severo Ochoa Program MINECO SEV-2015-0548, and to the Leverhulme Trust through grant VP2-2015-046. PAC gratefully acknowledges the receipt of a Leverhulme Emeritus Fellowship from the Leverhulme Trust. MAP's research is funded under the Juan de la Cierva Fellowship Programme (IJCI-2016-30867) from MINECO. ML is supported by EU's Horizon 2020 programme through a Marie Sklodowska-Curie Fellowship (grant nr. 702638). MAPT acknowledges support via a Ramon y Cajal Fellowship (RYC-2015-17854). AWS is supported by an NSERC Discovery Grant and a Discovery Accelerator Supplement. AJCT acknowledges support from the Spanish Ministry MINECO Project AYA 2015-71718-R (including FEDER funds). We thank Javier Mendez (head of the ING Service Program), Chris Benn (head of Astronomy), Marc Balcells (director of ING) and all the ING SAs for their help in monitoring this unique event during ING Service and Discretionary time. We also thank Romano Corradi (director of GTC), Antonio Cabrera (head of science operations) and the GTC support team for the quick response during the multiples triggers of our program. This research has been carried out with telescope time awarded by the CCI International Time Programme at the Canary Islands observatories (program ITP13-8). We also thank the GTC DDT committee (coordinated by the IAC director, Rafael Rebolo) for the awarded time to our observing program. This paper is partially based on observations with INTEGRAL, an ESA project with instruments and science data centre funded by ESA member states (especially the PI countries: Denmark, France, Germany, Italy, Switzerland, Spain), and Poland, and with the participation of Russia and the USA. MOLLY software developed by T. R. Marsh is gratefully acknowledged.Oxford University PressLa CaixaMinisterio de Economía y Competitividad (España)European CommissionLeverhulme TrustNatural Sciences and Engineering Research Council of CanadaEuropean Space AgencyConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2020202020182020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/206957reponame: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##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/RYC-2015-17854info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2017-83216-Pinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/SEV-2015-0548info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/IJCI-2016-30867info:eu-repo/grantAgreement/EC/H2020/702638info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2015-71718-Rhttp://dx.doi.org/10.1093/mnras/sty2402Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2069572026-05-22T06:33:51Z
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The 1989 and 2015 outbursts of V404 Cygni: A global study of wind-related optical features

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