Optical microflares in LS I +61 303 and the search for their multiwavelength counterpart

[Contex]. Stellar sources of gamma rays are one of the front lines in modern astrophysics whose understanding can benefit from observational tools not originally designed for their study. [Aims] We take advantage of the high precision photometric capabilities of present-day space facilities to obtai...

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Autores: Mestre, Enrique, Sánchez-Ayaso, Estrella, Luque-Escamilla, Pedro L., Martí, Josep, Paredes, Josep M., Ser, Daniel del, Núñez, Jorge
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:10261/279955
Acceso en línea:http://hdl.handle.net/10261/279955
Access Level:acceso abierto
Palabra clave:Stars: flare
Gamma rays: stars
X-ray binaries
Stars: emission-line, Be
Stars: individual: LS I+61 303
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spelling Optical microflares in LS I +61 303 and the search for their multiwavelength counterpartMestre, EnriqueSánchez-Ayaso, EstrellaLuque-Escamilla, Pedro L.Martí, JosepParedes, Josep M.Ser, Daniel delNúñez, JorgeStars: flareGamma rays: starsX-ray binariesStars: emission-line, BeStars: individual: LS I+61 303[Contex]. Stellar sources of gamma rays are one of the front lines in modern astrophysics whose understanding can benefit from observational tools not originally designed for their study. [Aims] We take advantage of the high precision photometric capabilities of present-day space facilities to obtain a new perspective on the optical behavior of the X-ray and gamma-ray binary LS I +61 303. Previously unknown phenomena whose effects manifest with amplitudes below 0.01 magnitude can now be clearly observed and studied. [Methods] Our work is mainly based on the analysis of optical and gamma-ray archival data and uses the tools recommended by the different collaborations that provide these valuable observational resources (in particular, the TESS and Fermi orbiting observatories). In addition, complementary ground-based optical spectroscopy has also been conducted. [Results] We report the discovery of small-amplitude optical flares on timescales of a day in the LS I +61 303 light curve. Different alternative scenarios to explain their origin are tentatively proposed.EM acknowledges support by grant P18-FR-1580 from the Consejería de Economía y Conocimiento de la Junta de Andalucía under the Programa Operativo FEDER 2014–2020. ESA, PLLE and JM acknowledge support by grant PID2019-105510GB-C32/AEI/10.13039/501100011033 from State Agency for Research of the Spanish Ministry of Science and Innovation entitled High energy sources with outflows at different scales: observation of galactic sources. We also acknowledge support by Consejería de Economía, Innovación, Ciencia y Empleo of Junta de Andalucía as research group FQM- 322, as well as FEDER funds. JMP, DdS and JN acknowledge financial support from the State Agency for Research of the Spanish Ministry of Science and Innovation under grant PID2019-105510GB-C31 and through the Unit of Excellence María de Maeztu 2020-2023 award to the Institute of Cosmos Sciences (CEX2019-000918-M). This paper includes data collected with the TESS mission, obtained from the MAST data archive at the Space Telescope Science Institute (STScI). Funding for the TESS mission is provided by the NASA Explorer Program. STScI is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555.EDP SciencesJunta de AndalucíaAgencia Estatal de Investigación (España)Ministerio de Ciencia e Innovación (España)NASAConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2022202220222022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/279955reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-105510GB-C32http://doi.org/10.1051/0004-6361/202243318Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2799552026-05-22T06:33:51Z
dc.title.none.fl_str_mv Optical microflares in LS I +61 303 and the search for their multiwavelength counterpart
title Optical microflares in LS I +61 303 and the search for their multiwavelength counterpart
spellingShingle Optical microflares in LS I +61 303 and the search for their multiwavelength counterpart
Mestre, Enrique
Stars: flare
Gamma rays: stars
X-ray binaries
Stars: emission-line, Be
Stars: individual: LS I+61 303
title_short Optical microflares in LS I +61 303 and the search for their multiwavelength counterpart
title_full Optical microflares in LS I +61 303 and the search for their multiwavelength counterpart
title_fullStr Optical microflares in LS I +61 303 and the search for their multiwavelength counterpart
title_full_unstemmed Optical microflares in LS I +61 303 and the search for their multiwavelength counterpart
title_sort Optical microflares in LS I +61 303 and the search for their multiwavelength counterpart
dc.creator.none.fl_str_mv Mestre, Enrique
Sánchez-Ayaso, Estrella
Luque-Escamilla, Pedro L.
Martí, Josep
Paredes, Josep M.
Ser, Daniel del
Núñez, Jorge
author Mestre, Enrique
author_facet Mestre, Enrique
Sánchez-Ayaso, Estrella
Luque-Escamilla, Pedro L.
Martí, Josep
Paredes, Josep M.
Ser, Daniel del
Núñez, Jorge
author_role author
author2 Sánchez-Ayaso, Estrella
Luque-Escamilla, Pedro L.
Martí, Josep
Paredes, Josep M.
Ser, Daniel del
Núñez, Jorge
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Junta de Andalucía
Agencia Estatal de Investigación (España)
Ministerio de Ciencia e Innovación (España)
NASA
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Stars: flare
Gamma rays: stars
X-ray binaries
Stars: emission-line, Be
Stars: individual: LS I+61 303
topic Stars: flare
Gamma rays: stars
X-ray binaries
Stars: emission-line, Be
Stars: individual: LS I+61 303
description [Contex]. Stellar sources of gamma rays are one of the front lines in modern astrophysics whose understanding can benefit from observational tools not originally designed for their study. [Aims] We take advantage of the high precision photometric capabilities of present-day space facilities to obtain a new perspective on the optical behavior of the X-ray and gamma-ray binary LS I +61 303. Previously unknown phenomena whose effects manifest with amplitudes below 0.01 magnitude can now be clearly observed and studied. [Methods] Our work is mainly based on the analysis of optical and gamma-ray archival data and uses the tools recommended by the different collaborations that provide these valuable observational resources (in particular, the TESS and Fermi orbiting observatories). In addition, complementary ground-based optical spectroscopy has also been conducted. [Results] We report the discovery of small-amplitude optical flares on timescales of a day in the LS I +61 303 light curve. Different alternative scenarios to explain their origin are tentatively proposed.
publishDate 2022
dc.date.none.fl_str_mv 2022
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/10261/279955
url http://hdl.handle.net/10261/279955
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/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-105510GB-C32
http://doi.org/10.1051/0004-6361/202243318
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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