تقرير
Polarization Constraints on the X-ray Corona in Seyfert Galaxies: MCG-05-23-16
| العنوان: | Polarization Constraints on the X-ray Corona in Seyfert Galaxies: MCG-05-23-16 |
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| المؤلفون: | A Marinucci, F Muleri, M DovÄŊiak, S Bianchi, F Marin, G Matt, F Ursini, R Middei, H L Marshall, L Baldini, T Barnouin, N Cavero Rodriguez, A De Rosa, L Di Gesu, D Harper, A Ingram, V Karas, H Krawczynski, G Madejski, C Panagiotou, P O Petrucci, J Podgorny, S Puccetti, F Tombesi, A Veledina, W Zhang, I Agudo, L A Antonelli, M Bachetti, W H Baumgartner, S Bongiorno, S R Ehlert, J Kolodziejczak, S L O'Dell, B D Ramsey, A F Tennant, N E Thomas, M C Weisskopf |
| المصدر: | Monthly Notices of the Royal Astronomical Society. 516(4) |
| بيانات النشر: | United States: NASA Center for Aerospace Information (CASI), 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Astrophysics |
| الوصف: | We report on the first observation of a radio-quiet Active Galactic Nucleus (AGN) inpolarized X-rays: the Seyfert 1.9 galaxy MCG-05-23-16. This source was pointed at with theImaging X-ray Polarimetry Explorer(IXPE) starting on May 14, 2022 for a net observing timeof 486 ks, simultaneously with XMM-Newton(58 ks) andNuSTAR(83 ks). A polarizationdegreeΠsmaller than 4.7% (at the 99% confidence level) is derived in the 2–8 keV energyrange, where emission is dominated by the primary component ascribed to the hot corona.The broad-band spectrum, inferred from a simultaneous fit to theIXPE,NuSTAR, and XMM-Newtondata, is well reproduced by a power law with photon indexΓ=1.85±0.01and ahigh-energy cutoffEC=120±15keV. A comparison with Monte Carlo simulations showsthat a lamp-post and a conical geometry of the corona are consistent with the observed upperlimit, a slab geometry is allowed only if the inclination angle of the system is less than 50◦ |
| نوع الوثيقة: | Report |
| اللغة: | English |
| تدمد: | 1365-2966 0035-8711 |
| DOI: | 10.1093/mnras/stac2634 |
| URL الوصول: | https://ntrs.nasa.gov/citations/20220013993 |
| ملاحظات: | 976348.01.10 NNM15AA18C |
| رقم الأكسشن: | edsnas.20220013993 |
| قاعدة البيانات: | NASA Technical Reports |
Full Text Finder | تدمد: | 13652966 00358711 |
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| DOI: | 10.1093/mnras/stac2634 |