Investigating the nature and properties of MAXI J1810-222 with radio and X-ray observations

We present results from radio and X-ray observations of the X-ray transient MAXI J1810-222. The nature of the accretor in this source has not been identified. In this paper, we show results from a quasi-simultaneous radio and X-ray monitoring campaign taken with the Australia Telescope Compact Array...

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Autores: Russell, Thomas P., Santo, Melania del, Marino, Alessio, Segreto, A., Motta, S. E., Bahramian, Arash, Corbel, S., D'Aí, Antonino, Salvo, Tiziana di, Miller-Jones, J. C. A., Pinto, C., Pintore, Fabio, Tzioumis, A.
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:10261/279880
Acceso en línea:http://hdl.handle.net/10261/279880
Access Level:acceso abierto
Palabra clave:Accretion
Accretion discs
Black hole physics
Radio continuum: transients
X-rays: individual: MAXI J1810-222
Stars: neutron
X-ray binaries
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spelling Investigating the nature and properties of MAXI J1810-222 with radio and X-ray observationsRussell, Thomas P.Santo, Melania delMarino, AlessioSegreto, A.Motta, S. E.Bahramian, ArashCorbel, S.D'Aí, AntoninoSalvo, Tiziana diMiller-Jones, J. C. A.Pinto, C.Pintore, FabioTzioumis, A.AccretionAccretion discsBlack hole physicsRadio continuum: transientsX-rays: individual: MAXI J1810-222Stars: neutronX-ray binariesWe present results from radio and X-ray observations of the X-ray transient MAXI J1810-222. The nature of the accretor in this source has not been identified. In this paper, we show results from a quasi-simultaneous radio and X-ray monitoring campaign taken with the Australia Telescope Compact Array, the Neil Gehrels Swift Observatory X-ray Telescope (XRT), and the Swift Burst Alert Telescope. We also analyse the X-ray temporal behaviour using observations from the Neutron star Interior Composition Explorer. Results show a seemingly peculiar X-ray spectral evolution of MAXI J1810-222 during this outburst, where the source was initially only detected in the soft X-ray band for the early part of the outburst. Then, ∼200 d after MAXI J1810-222 was first detected the hard X-ray emission increased and the source transitioned to a long-lived (∼1.5 yr) bright, harder X-ray state. After this hard state, MAXI J1810-222 returned back to a softer state, before fading and transitioning again to a harder state and then appearing to follow a more typical outburst decay. From the X-ray spectral and timing properties, and the source's radio behaviour, we argue that the results from this study are most consistent with MAXI J1810-222 being a relatively distant (≳6 kpc) black hole X-ray binary. A sufficiently large distance to source can simply explain the seemingly odd outburst evolution that was observed, where only the brightest portion of the outburst was detectable by the all-sky XRTs.Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. AM is supported by the H2020 European Research Council Consolidator Grant ‘MAGNESIA’ under grant agreement No. 817661 (PI: Rea) and National Spanish Grant PGC2018-095512-BI00. This work was also partially supported by the program Unidad de Excelencia Maria de Maeztu CEX2020-001058-M, and by the PHAROS COST Action (No. CA16214).Royal Astronomical SocietyEuropean CommissionAgencia Estatal de Investigación (España)Consejo 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/10261/279880reponame: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/MINECO//PGC2018-095512-BI00info:eu-repo/grantAgreement/EC/H2020/817661The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI 10.1093/mnras/stac1332http://doi.org/10.1093/mnras/stac1332Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2798802026-05-22T06:33:51Z
dc.title.none.fl_str_mv Investigating the nature and properties of MAXI J1810-222 with radio and X-ray observations
title Investigating the nature and properties of MAXI J1810-222 with radio and X-ray observations
spellingShingle Investigating the nature and properties of MAXI J1810-222 with radio and X-ray observations
Russell, Thomas P.
Accretion
Accretion discs
Black hole physics
Radio continuum: transients
X-rays: individual: MAXI J1810-222
Stars: neutron
X-ray binaries
title_short Investigating the nature and properties of MAXI J1810-222 with radio and X-ray observations
title_full Investigating the nature and properties of MAXI J1810-222 with radio and X-ray observations
title_fullStr Investigating the nature and properties of MAXI J1810-222 with radio and X-ray observations
title_full_unstemmed Investigating the nature and properties of MAXI J1810-222 with radio and X-ray observations
title_sort Investigating the nature and properties of MAXI J1810-222 with radio and X-ray observations
dc.creator.none.fl_str_mv Russell, Thomas P.
Santo, Melania del
Marino, Alessio
Segreto, A.
Motta, S. E.
Bahramian, Arash
Corbel, S.
D'Aí, Antonino
Salvo, Tiziana di
Miller-Jones, J. C. A.
Pinto, C.
Pintore, Fabio
Tzioumis, A.
author Russell, Thomas P.
author_facet Russell, Thomas P.
Santo, Melania del
Marino, Alessio
Segreto, A.
Motta, S. E.
Bahramian, Arash
Corbel, S.
D'Aí, Antonino
Salvo, Tiziana di
Miller-Jones, J. C. A.
Pinto, C.
Pintore, Fabio
Tzioumis, A.
author_role author
author2 Santo, Melania del
Marino, Alessio
Segreto, A.
Motta, S. E.
Bahramian, Arash
Corbel, S.
D'Aí, Antonino
Salvo, Tiziana di
Miller-Jones, J. C. A.
Pinto, C.
Pintore, Fabio
Tzioumis, A.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
Agencia Estatal de Investigación (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Accretion
Accretion discs
Black hole physics
Radio continuum: transients
X-rays: individual: MAXI J1810-222
Stars: neutron
X-ray binaries
topic Accretion
Accretion discs
Black hole physics
Radio continuum: transients
X-rays: individual: MAXI J1810-222
Stars: neutron
X-ray binaries
description We present results from radio and X-ray observations of the X-ray transient MAXI J1810-222. The nature of the accretor in this source has not been identified. In this paper, we show results from a quasi-simultaneous radio and X-ray monitoring campaign taken with the Australia Telescope Compact Array, the Neil Gehrels Swift Observatory X-ray Telescope (XRT), and the Swift Burst Alert Telescope. We also analyse the X-ray temporal behaviour using observations from the Neutron star Interior Composition Explorer. Results show a seemingly peculiar X-ray spectral evolution of MAXI J1810-222 during this outburst, where the source was initially only detected in the soft X-ray band for the early part of the outburst. Then, ∼200 d after MAXI J1810-222 was first detected the hard X-ray emission increased and the source transitioned to a long-lived (∼1.5 yr) bright, harder X-ray state. After this hard state, MAXI J1810-222 returned back to a softer state, before fading and transitioning again to a harder state and then appearing to follow a more typical outburst decay. From the X-ray spectral and timing properties, and the source's radio behaviour, we argue that the results from this study are most consistent with MAXI J1810-222 being a relatively distant (≳6 kpc) black hole X-ray binary. A sufficiently large distance to source can simply explain the seemingly odd outburst evolution that was observed, where only the brightest portion of the outburst was detectable by the all-sky XRTs.
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/10261/279880
url http://hdl.handle.net/10261/279880
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO//PGC2018-095512-BI00
info:eu-repo/grantAgreement/EC/H2020/817661
The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI 10.1093/mnras/stac1332
http://doi.org/10.1093/mnras/stac1332
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Royal Astronomical Society
publisher.none.fl_str_mv Royal Astronomical Society
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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score 15,811543

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