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Article: IXPE and XMM-Newton Observations of the Soft Gamma Repeater SGR 1806-20

TitleIXPE and XMM-Newton Observations of the Soft Gamma Repeater SGR 1806-20
Authors
Issue Date1-Sep-2023
PublisherAmerican Astronomical Society
Citation
Astrophysical Journal, 2023, v. 954, n. 1, p. 1-9 How to Cite?
AbstractRecent observations with the Imaging X-ray Polarimetry Explorer (IXPE) of two anomalous X-ray pulsars provided evidence that X-ray emission from magnetar sources is strongly polarized. Here we report on the joint IXPE and XMMNewton observations of the soft.-repeater SGR 1806-20. The spectral and timing properties of SGR 1806-20 derived from XMM-Newton data are in broad agreement with previous measurements; however, we found the source at an alltime low persistent flux level. No significant polarization was measured apart from the 4-5 keV energy range, where a probable detection with PD= 31.6%+/- 10.5% and PA = -17 6(-15.degrees 0)(+. 15.degrees 0) was obtained. The resulting polarization signal, together with the upper limits we derive at lower and higher energies (2-4 and 5-8 keV, respectively), is compatible with a picture in which thermal radiation from the condensed star surface is reprocessed by resonant Compton scattering in the magnetosphere, similar to what was proposed for the bright magnetar 4U 0142+61.
Persistent Identifierhttp://hdl.handle.net/10722/339078
ISSN
2023 Impact Factor: 4.8
2023 SCImago Journal Rankings: 1.905
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorTurolla, R-
dc.contributor.authorTaverna, R-
dc.contributor.authorIsrael, GL-
dc.contributor.authorMuleri, F-
dc.contributor.authorZane, S-
dc.contributor.authorBachetti, M-
dc.contributor.authorHeyl, J-
dc.contributor.authorDi Marco, A-
dc.contributor.authorGau, E-
dc.contributor.authorKrawczynski, H-
dc.contributor.authorNg, M-
dc.contributor.authorPossenti, A-
dc.contributor.authorPoutanen, J-
dc.contributor.authorBaldini, L-
dc.contributor.authorMatt, G-
dc.contributor.authorNegro, M-
dc.contributor.authorAgudo, I-
dc.contributor.authorAntonelli, LA-
dc.contributor.authorBaumgartner, WH-
dc.contributor.authorBellazzini, R-
dc.contributor.authorBianchi, S-
dc.contributor.authorBongiorno, SD-
dc.contributor.authorBonino, R-
dc.contributor.authorBrez, A-
dc.contributor.authorBucciantini, N-
dc.contributor.authorCapitanio, F-
dc.contributor.authorCastellano, S-
dc.contributor.authorCavazzuti, E-
dc.contributor.authorChen, CT-
dc.contributor.authorCiprini, S-
dc.contributor.authorCosta, E-
dc.contributor.authorDe Rosa, A-
dc.contributor.authorDel Monte, E-
dc.contributor.authorDi Gesu, L-
dc.contributor.authorDi Lalla, N-
dc.contributor.authorDonnarumma, I-
dc.contributor.authorDoroshenko, V-
dc.contributor.authorDovciak, M-
dc.contributor.authorEhlert, SR-
dc.contributor.authorEnoto, T-
dc.contributor.authorEvangelista, Y-
dc.contributor.authorFabiani, S-
dc.contributor.authorFerrazzoli, R-
dc.contributor.authorGarcia, JA-
dc.contributor.authorGunji, S-
dc.contributor.authorHayashida, K-
dc.contributor.authorIwakiri, W-
dc.contributor.authorJorstad, SG-
dc.contributor.authorKaaret, P-
dc.contributor.authorKaras, V-
dc.contributor.authorKislat, F-
dc.contributor.authorKitaguchi, T-
dc.contributor.authorKolodziejczak, JJ-
dc.contributor.authorLa Monaca, F-
dc.contributor.authorLatronico, L-
dc.contributor.authorLiodakis, I-
dc.contributor.authorMaldera, S-
dc.contributor.authorManfreda, A-
dc.contributor.authorMarin, F-
dc.contributor.authorMarinucci, A-
dc.contributor.authorMarscher, AP-
dc.contributor.authorMarshall, HL-
dc.contributor.authorMassaro, F-
dc.contributor.authorMitsuishi, I-
dc.contributor.authorMizuno, T-
dc.contributor.authorNg, CY-
dc.contributor.authorO'Dell, SL-
dc.contributor.authorOmodei, N-
dc.contributor.authorOppedisano, C-
dc.contributor.authorPapitto, A-
dc.contributor.authorPavlov, GG-
dc.contributor.authorPeirson, AL-
dc.contributor.authorPerri, M-
dc.contributor.authorPesce-Rollins, M-
dc.contributor.authorPetrucci, PO-
dc.contributor.authorPilia, M-
dc.contributor.authorPuccetti, S-
dc.contributor.authorRamsey, BD-
dc.contributor.authorRankin, J-
dc.contributor.authorRatheesh, A-
dc.contributor.authorRoberts, OJ-
dc.contributor.authorRomani, RW-
dc.contributor.authorSgro, C-
dc.contributor.authorSlane, P-
dc.contributor.authorSoffitta, P-
dc.contributor.authorSpandre, G-
dc.contributor.authorSwartz, DA-
dc.contributor.authorTamagawa, T-
dc.contributor.authorTavecchio, F-
dc.contributor.authorTawara, Y-
dc.contributor.authorTennant, AF-
dc.contributor.authorThomas, NE-
dc.contributor.authorTombesi, F-
dc.contributor.authorTrois, A-
dc.contributor.authorTsygankov, SS-
dc.contributor.authorVink, J-
dc.contributor.authorWeisskopf, MC-
dc.contributor.authorWu, KW-
dc.contributor.authorXie, F-
dc.date.accessioned2024-03-11T10:33:43Z-
dc.date.available2024-03-11T10:33:43Z-
dc.date.issued2023-09-01-
dc.identifier.citationAstrophysical Journal, 2023, v. 954, n. 1, p. 1-9-
dc.identifier.issn0004-637X-
dc.identifier.urihttp://hdl.handle.net/10722/339078-
dc.description.abstractRecent observations with the Imaging X-ray Polarimetry Explorer (IXPE) of two anomalous X-ray pulsars provided evidence that X-ray emission from magnetar sources is strongly polarized. Here we report on the joint IXPE and XMMNewton observations of the soft.-repeater SGR 1806-20. The spectral and timing properties of SGR 1806-20 derived from XMM-Newton data are in broad agreement with previous measurements; however, we found the source at an alltime low persistent flux level. No significant polarization was measured apart from the 4-5 keV energy range, where a probable detection with PD= 31.6%+/- 10.5% and PA = -17 6(-15.degrees 0)(+. 15.degrees 0) was obtained. The resulting polarization signal, together with the upper limits we derive at lower and higher energies (2-4 and 5-8 keV, respectively), is compatible with a picture in which thermal radiation from the condensed star surface is reprocessed by resonant Compton scattering in the magnetosphere, similar to what was proposed for the bright magnetar 4U 0142+61.-
dc.languageeng-
dc.publisherAmerican Astronomical Society-
dc.relation.ispartofAstrophysical Journal-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.titleIXPE and XMM-Newton Observations of the Soft Gamma Repeater SGR 1806-20-
dc.typeArticle-
dc.identifier.doi10.3847/1538-4357/aced05-
dc.identifier.scopuseid_2-s2.0-85170101253-
dc.identifier.volume954-
dc.identifier.issue1-
dc.identifier.spage1-
dc.identifier.epage9-
dc.identifier.eissn1538-4357-
dc.identifier.isiWOS:001059343900001-
dc.publisher.placeBRISTOL-
dc.identifier.issnl0004-637X-

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