Polarization Properties of the Weakly Magnetized Neutron Star X-Ray Binary GS 1826-238 in the High Soft State

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dc.contributor.authorCapitanio Fiamma
dc.contributor.authorFabiani Sergio
dc.contributor.authorGnarini Andrea
dc.contributor.authorUrsini Francesco
dc.contributor.authorFerrigno Carlo
dc.contributor.authorMatt Giorgio
dc.contributor.authorPoutanen Juri
dc.contributor.authorCocchi Massimo
dc.contributor.authorMikusincova Romana
dc.contributor.authorFarinelli Ruben
dc.contributor.authorBianchi Stefano
dc.contributor.authorKajava Jari J. E.
dc.contributor.authorMuleri Fabio
dc.contributor.authorSanchez-Fernandez Celia
dc.contributor.authorSoffitta Paolo
dc.contributor.authorWu Kinwah
dc.contributor.authorAgudo Iván
dc.contributor.authorAntonelli Lucio A.
dc.contributor.authorBachetti Matteo
dc.contributor.authorBaldini Luca
dc.contributor.authorBaumgartner Wayne H.
dc.contributor.authorBellazzini Ronaldo
dc.contributor.authorBongiorno Stephen D.
dc.contributor.authorBonino Raffaella
dc.contributor.authorBrez Alessandro
dc.contributor.authorBucciantini Niccolò
dc.contributor.authorCastellano Simone
dc.contributor.authorCavazzuti Elisabetta
dc.contributor.authorCiprini Stefano
dc.contributor.authorCosta Enrico
dc.contributor.authorDe Rosa Alessandra
dc.contributor.authorDel Monte Ettore
dc.contributor.authorDi Gesu Laura
dc.contributor.authorDi Lalla Niccolò
dc.contributor.authorDi Marco Alessandro
dc.contributor.authorDonnarumma Immacolata
dc.contributor.authorDoroshenko Victor
dc.contributor.authorDovčiak Michal
dc.contributor.authorEhlert Steven R.
dc.contributor.authorEnoto Teruaki
dc.contributor.authorEvangelista Yuri
dc.contributor.authorFerrazzoli Riccardo
dc.contributor.authorGarcia Javier A.
dc.contributor.authorGunji Shuichi
dc.contributor.authorHayashida Kiyoshi
dc.contributor.authorHeyl Jeremy
dc.contributor.authorIwakiri Wataru
dc.contributor.authorJorstad Svetlana G.
dc.contributor.authorKaras Vladimir
dc.contributor.authorKitaguchi Takao
dc.contributor.authorKolodziejczak Jeffery J.
dc.contributor.authorKrawczynski Henric
dc.contributor.authorLa Monaca Fabio
dc.contributor.authorLatronico Luca
dc.contributor.authorLiodakis Ioannis
dc.contributor.authorMaldera Simone
dc.contributor.authorManfreda Alberto
dc.contributor.authorMarin Frédéric
dc.contributor.authorMarinucci Andrea
dc.contributor.authorMarscher Alan P.
dc.contributor.authorMarshall Herman L.
dc.contributor.authorMitsuishi Ikuyuki
dc.contributor.authorMizuno Tsunefumi
dc.contributor.authorNg C.-Y.
dc.contributor.authorO'Dell Stephen L.
dc.contributor.authorOmodei Nicola
dc.contributor.authorOppedisano Chiara
dc.contributor.authorPapitto Alessandro
dc.contributor.authorPavlov George G.
dc.contributor.authorPeirson Abel L.
dc.contributor.authorPerri Matteo
dc.contributor.authorPesce-Rollins Melissa
dc.contributor.authorPetrucci Pierre-Olivier
dc.contributor.authorPilia Maura
dc.contributor.authorPossenti Andrea
dc.contributor.authorPuccetti Simonetta
dc.contributor.authorRamsey Brian D.
dc.contributor.authorRankin John
dc.contributor.authorRatheesh Ajay
dc.contributor.authorRomani Roger W.
dc.contributor.authorSgrò Carmelo
dc.contributor.authorSlane Patrick
dc.contributor.authorSpandre Gloria
dc.contributor.authorTamagawa Toru
dc.contributor.authorTavecchio Fabrizio
dc.contributor.authorTaverna Roberto
dc.contributor.authorTawara Yuzuru
dc.contributor.authorTennant Allyn F.
dc.contributor.authorThomas Nicholas E.
dc.contributor.authorTombesi Francesco
dc.contributor.authorTrois Alessio
dc.contributor.authorTsygankov Sergey S.
dc.contributor.authorTurolla Roberto
dc.contributor.authorVink Jacco
dc.contributor.authorWeisskopf Martin C.
dc.contributor.authorXie Fei
dc.contributor.authorZane Silvia
dc.contributor.organizationfi=Suomen ESO-keskus|en=Finnish Centre for Astronomy with ESO|
dc.contributor.organizationfi=Tuorlan observatorio|en=Tuorla Observatory|
dc.contributor.organization-code1.2.246.10.2458963.20.54954054844
dc.contributor.organization-code1.2.246.10.2458963.20.90670098848
dc.converis.publication-id178965999
dc.converis.urlhttps://research.utu.fi/converis/portal/Publication/178965999
dc.date.accessioned2025-08-28T02:06:12Z
dc.date.available2025-08-28T02:06:12Z
dc.description.abstractThe launch of the Imaging X-ray Polarimetry Explorer (IXPE) on 2021 December 9 has opened a new window in X-ray astronomy. We report here the results of the first IXPE observation of a weakly magnetized neutron star, GS 1826-238, performed on 2022 March 29-31 when the source was in a high soft state. An upper limit (99.73% confidence level) of 1.3% for the linear polarization degree is obtained over the IXPE 2-8 keV energy range. Coordinated INTEGRAL and NICER observations were carried out simultaneously with IXPE. The spectral parameters obtained from the fits to the broadband spectrum were used as inputs for Monte Carlo simulations considering different possible geometries of the X-ray emitting region. Comparing the IXPE upper limit with these simulations, we can put constraints on the geometry and inclination angle of GS 1826-238.
dc.identifier.eissn1538-4357
dc.identifier.jour-issn0004-637X
dc.identifier.olddbid208584
dc.identifier.oldhandle10024/191611
dc.identifier.urihttps://www.utupub.fi/handle/11111/58068
dc.identifier.urlhttps://iopscience.iop.org/article/10.3847/1538-4357/acae88
dc.identifier.urnURN:NBN:fi-fe2023032533234
dc.language.isoen
dc.okm.affiliatedauthorPoutanen, Juri
dc.okm.affiliatedauthorKajava, Jari
dc.okm.affiliatedauthorLiodakis, Yannis
dc.okm.affiliatedauthorTsygankov, Sergey
dc.okm.discipline115 Astronomy and space scienceen_GB
dc.okm.discipline115 Avaruustieteet ja tähtitiedefi_FI
dc.okm.internationalcopublicationinternational co-publication
dc.okm.internationalityInternational publication
dc.okm.typeA1 ScientificArticle
dc.publisherIOP Publishing Ltd
dc.publisher.countryUnited Kingdomen_GB
dc.publisher.countryBritanniafi_FI
dc.publisher.country-codeGB
dc.relation.articlenumber129
dc.relation.doi10.3847/1538-4357/acae88
dc.relation.ispartofjournalAstrophysical Journal
dc.relation.issue2
dc.relation.volume943
dc.source.identifierhttps://www.utupub.fi/handle/10024/191611
dc.titlePolarization Properties of the Weakly Magnetized Neutron Star X-Ray Binary GS 1826-238 in the High Soft State
dc.year.issued2023

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