Complex variations in X-ray polarization in the X-ray pulsar LS V +44 17/RX J0440.9+4431

Full list of the authors: Doroshenko, Victor; Poutanen, Juri; Heyl, Jeremy; Tsygankov, Sergey S.; Caiazzo, Ilaria; Turolla, Roberto; Veledina, Alexandra; Weisskopf, Martin C.; Forsblom, Sofia V.; González-Caniulef, Denis; Loktev, Vladislav; Malacaria, Christian; Mushtukov, Alexander A.; Suleimanov,...

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Detalles Bibliográficos
Autores: Doroshenko, Victor, Agudo, Iván
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/356394
Acceso en línea:http://hdl.handle.net/10261/356394
Access Level:acceso abierto
Palabra clave:Accretion
Accretion disks
Magnetic fields
Pulsars: individual: RX J0440.9+4431
Stars: neutron
X-rays: binaries
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oai_identifier_str oai:digital.csic.es:10261/356394
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network_name_str España
repository_id_str
dc.title.none.fl_str_mv Complex variations in X-ray polarization in the X-ray pulsar LS V +44 17/RX J0440.9+4431
title Complex variations in X-ray polarization in the X-ray pulsar LS V +44 17/RX J0440.9+4431
spellingShingle Complex variations in X-ray polarization in the X-ray pulsar LS V +44 17/RX J0440.9+4431
Doroshenko, Victor
Accretion
Accretion disks
Magnetic fields
Pulsars: individual: RX J0440.9+4431
Stars: neutron
X-rays: binaries
title_short Complex variations in X-ray polarization in the X-ray pulsar LS V +44 17/RX J0440.9+4431
title_full Complex variations in X-ray polarization in the X-ray pulsar LS V +44 17/RX J0440.9+4431
title_fullStr Complex variations in X-ray polarization in the X-ray pulsar LS V +44 17/RX J0440.9+4431
title_full_unstemmed Complex variations in X-ray polarization in the X-ray pulsar LS V +44 17/RX J0440.9+4431
title_sort Complex variations in X-ray polarization in the X-ray pulsar LS V +44 17/RX J0440.9+4431
dc.creator.none.fl_str_mv Doroshenko, Victor
Agudo, Iván
author Doroshenko, Victor
author_facet Doroshenko, Victor
Agudo, Iván
author_role author
author2 Agudo, Iván
author2_role author
dc.contributor.none.fl_str_mv NASA
Agenzia Spaziale Italiana
German Academic Exchange Service
Academy of Finland
National Research Council of Canada
UK Research and Innovation
German Research Centre for Geosciences
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Accretion
Accretion disks
Magnetic fields
Pulsars: individual: RX J0440.9+4431
Stars: neutron
X-rays: binaries
topic Accretion
Accretion disks
Magnetic fields
Pulsars: individual: RX J0440.9+4431
Stars: neutron
X-rays: binaries
description Full list of the authors: Doroshenko, Victor; Poutanen, Juri; Heyl, Jeremy; Tsygankov, Sergey S.; Caiazzo, Ilaria; Turolla, Roberto; Veledina, Alexandra; Weisskopf, Martin C.; Forsblom, Sofia V.; González-Caniulef, Denis; Loktev, Vladislav; Malacaria, Christian; Mushtukov, Alexander A.; Suleimanov, Valery F.; Lutovinov, Alexander A.; Mereminskiy, Ilya A.; Molkov, Sergey V.; Salganik, Alexander; Santangelo, Andrea; Berdyugin, Andrei V.; Kravtsov, Vadim; Nitindala, Anagha P.; Agudo, Iván; Antonelli, Lucio A.; Bachetti, Matteo; Baldini, Luca; Baumgartner, Wayne H.; Bellazzini, Ronaldo; Bianchi, Stefano; Bongiorno, Stephen D.; Bonino, Raffaella; Brez, Alessandro; Bucciantini, Niccolò; Capitanio, Fiamma; Castellano, Simone; Cavazzuti, Elisabetta; Chen, Chien-Ting; Ciprini, Stefano; Costa, Enrico; De Rosa, Alessandra; Del Monte, Ettore; Di Gesu, Laura; Di Lalla, Niccolò; Di Marco, Alessandro; Donnarumma, Immacolata; Dovčiak, Michal; Ehlert, Steven R.; Enoto, Teruaki; Evangelista, Yuri; Fabiani, Sergio; Ferrazzoli, Riccardo; García, Javier A.; Gunji, Shuichi; Hayashida, Kiyoshi; Iwakiri, Wataru; Jorstad, Svetlana G.; Kaaret, Philip; Karas, Vladimir; Kislat, Fabian; Kitaguchi, Takao; Kolodziejczak, Jeffery J.; Krawczynski, Henric; La Monaca, Fabio; Latronico, Luca; Liodakis, Ioannis; Maldera, Simone; Manfreda, Alberto; Marin, Frédéric; Marinucci, Andrea; Marscher, Alan P.; Marshall, Herman L.; Massaro, Francesco; Matt, Giorgio; Mitsuishi, Ikuyuki; Mizuno, Tsunefumi; Muleri, Fabio; Negro, Michela; Ng, Chi-Yung; O'Dell, Stephen L.; Omodei, Nicola; Oppedisano, Chiara; Papitto, Alessandro; Pavlov, George G.; Peirson, Abel L.; Perri, Matteo; Pesce-Rollins, Melissa; Petrucci, Pierre-Olivier; Pilia, Maura; Possenti, Andrea; Puccetti, Simonetta; Ramsey, Brian D.; Rankin, John; Ratheesh, Ajay; Roberts, Oliver J.; Romani, Roger W.; Sgrò, Carmelo; Slane, Patrick; Soffitta, Paolo; Spandre, Gloria; Swartz, Douglas A.; Tamagawa, Toru; Tavecchio, Fabrizio; Taverna, Roberto; Tawara, Yuzuru; Tennant, Allyn F.; Thomas, Nicholas E.; Tombesi, Francesco; Trois, Alessio; Vink, Jacco; Wu, Kinwah; Xie, Fei; Zane, Silvia
publishDate 2023
dc.date.none.fl_str_mv 2023
2024
2024
2024
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/10261/356394
url http://hdl.handle.net/10261/356394
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1051/0004-6361/202347088
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
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spelling Complex variations in X-ray polarization in the X-ray pulsar LS V +44 17/RX J0440.9+4431Doroshenko, VictorAgudo, IvánAccretionAccretion disksMagnetic fieldsPulsars: individual: RX J0440.9+4431Stars: neutronX-rays: binariesFull list of the authors: Doroshenko, Victor; Poutanen, Juri; Heyl, Jeremy; Tsygankov, Sergey S.; Caiazzo, Ilaria; Turolla, Roberto; Veledina, Alexandra; Weisskopf, Martin C.; Forsblom, Sofia V.; González-Caniulef, Denis; Loktev, Vladislav; Malacaria, Christian; Mushtukov, Alexander A.; Suleimanov, Valery F.; Lutovinov, Alexander A.; Mereminskiy, Ilya A.; Molkov, Sergey V.; Salganik, Alexander; Santangelo, Andrea; Berdyugin, Andrei V.; Kravtsov, Vadim; Nitindala, Anagha P.; Agudo, Iván; Antonelli, Lucio A.; Bachetti, Matteo; Baldini, Luca; Baumgartner, Wayne H.; Bellazzini, Ronaldo; Bianchi, Stefano; Bongiorno, Stephen D.; Bonino, Raffaella; Brez, Alessandro; Bucciantini, Niccolò; Capitanio, Fiamma; Castellano, Simone; Cavazzuti, Elisabetta; Chen, Chien-Ting; Ciprini, Stefano; Costa, Enrico; De Rosa, Alessandra; Del Monte, Ettore; Di Gesu, Laura; Di Lalla, Niccolò; Di Marco, Alessandro; Donnarumma, Immacolata; Dovčiak, Michal; Ehlert, Steven R.; Enoto, Teruaki; Evangelista, Yuri; Fabiani, Sergio; Ferrazzoli, Riccardo; García, Javier A.; Gunji, Shuichi; Hayashida, Kiyoshi; Iwakiri, Wataru; Jorstad, Svetlana G.; Kaaret, Philip; Karas, Vladimir; Kislat, Fabian; Kitaguchi, Takao; Kolodziejczak, Jeffery J.; Krawczynski, Henric; La Monaca, Fabio; Latronico, Luca; Liodakis, Ioannis; Maldera, Simone; Manfreda, Alberto; Marin, Frédéric; Marinucci, Andrea; Marscher, Alan P.; Marshall, Herman L.; Massaro, Francesco; Matt, Giorgio; Mitsuishi, Ikuyuki; Mizuno, Tsunefumi; Muleri, Fabio; Negro, Michela; Ng, Chi-Yung; O'Dell, Stephen L.; Omodei, Nicola; Oppedisano, Chiara; Papitto, Alessandro; Pavlov, George G.; Peirson, Abel L.; Perri, Matteo; Pesce-Rollins, Melissa; Petrucci, Pierre-Olivier; Pilia, Maura; Possenti, Andrea; Puccetti, Simonetta; Ramsey, Brian D.; Rankin, John; Ratheesh, Ajay; Roberts, Oliver J.; Romani, Roger W.; Sgrò, Carmelo; Slane, Patrick; Soffitta, Paolo; Spandre, Gloria; Swartz, Douglas A.; Tamagawa, Toru; Tavecchio, Fabrizio; Taverna, Roberto; Tawara, Yuzuru; Tennant, Allyn F.; Thomas, Nicholas E.; Tombesi, Francesco; Trois, Alessio; Vink, Jacco; Wu, Kinwah; Xie, Fei; Zane, SilviaWe report on Imaging X-ray polarimetry explorer (IXPE) observations of the Be-transient X-ray pulsar LS V +44 17/RX J0440.9+4431 made at two luminosity levels during the giant outburst in January- February 2023. Considering the observed spectral variability and changes in the pulse profiles, the source was likely caught in supercritical and subcritical states with significantly different emission-region geometry, associated with the presence of accretion columns and hot spots, respectively. We focus here on the pulse-phase-resolved polarimetric analysis and find that the observed dependencies of the polarization degree and polarization angle (PA) on the pulse phase are indeed drastically different for the two observations. The observed differences, if interpreted within the framework of the rotating vector model (RVM), imply dramatic variations in the spin axis inclination, the position angle, and the magnetic colatitude by tens of degrees within the space of just a few days. We suggest that the apparent changes in the observed PA phase dependence are predominantly related to the presence of an unpulsed polarized component in addition to the polarized radiation associated with the pulsar itself. We then show that the observed PA phase dependence in both observations can be explained with a single set of RVM parameters defining the pulsar s geometry. We also suggest that the additional polarized component is likely produced by scattering of the pulsar radiation in the equatorial disk wind. © 2023 Authors. All rights reserved.The Imaging X-ray Polarimetry Explorer (IXPE) is a joint US and Italian mission. The US contribution is supported by the National Aeronautics and Space Administration (NASA) and led and managed by its Marshall Space Flight Center (MSFC), with industry partner Ball Aerospace (contract NNM15AA18C). The Italian contribution is supported by the Italian Space Agency (Agenzia Spaziale Italiana, ASI) through contract ASI-OHBI-2017-12-I.0, agreements ASI-INAF-2017-12-H0 and ASI-INFN-2017.13-H0, and its Space Science Data Center (SSDC) with agreements ASI-INAF-2022-14-HH.0 and ASI-INFN 2021-43-HH.0, and by the Istituto Nazionale di Astrofisica (INAF) and the Istituto Nazionale di Fisica Nucleare (INFN) in Italy. This research used data products provided by the IXPE Team (MSFC, SSDC, INAF, and INFN) and distributed with additional software tools by the High-Energy Astrophysics Science Archive Research Center (HEASARC), at NASA Goddard Space Flight Center (GSFC). We acknowledge support from the German Academic Exchange Service (DAAD) travel grant 57525212 (VD, VFS), the Academy of Finland grants 333112, 349144, 349373, and 349906 (JP, SST, SVF), the Natural Sciences and Engineering Research Council of Canada (NSERC) and the Canadian Space Agency (JH), the Vaisala Foundation (SST), UKRI Stephen Hawking fellowship (AAM), the German Research Foundation (DFG) grant WE 1312/59-1 (VFS), the Vilho, Yrjo and Kalle Vaisala Foundation, and Suomen KulttuurirahastoEDP SciencesNASAAgenzia Spaziale ItalianaGerman Academic Exchange ServiceAcademy of FinlandNational Research Council of CanadaUK Research and InnovationGerman Research Centre for GeosciencesConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2024202420232024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/356394reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1051/0004-6361/202347088Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3563942026-05-22T06:33:51Z
score 15,812429

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