An IXPE-led X-Ray Spectropolarimetric Campaign on the Soft State of Cygnus X-1: X-Ray Polarimetric Evidence for Strong Gravitational Lensing

We present the first X-ray spectropolarimetric results for Cygnus X-1 in its soft state from a campaign of five IXPE observations conducted during 2023 May–June. Companion multiwavelength data during the campaign are likewise shown. The 2–8 keV X-rays exhibit a net polarization degree PD = 1.99% ± 0...

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Bibliographic Details
Main Authors:	Steiner, JF, Nathan, E, Hu, K, Krawczynski, H, Dovčiak, M, Veledina, A, Muleri, F, Svoboda, J, Alabarta, K, Parra, M, Bhargava, Y, Matt, G, Poutanen, J, Petrucci, P, Tennant, AF, Baglio, MC, Baldini, L, Barnier, S, Bhattacharyya, S, Bianchi, S, Brigitte, M, Cabezas, M, Cangemi, F, Capitanio, F, Rhodes, L
Format:	Journal article
Language:	English
Published:	American Astronomical Society 2024

An IXPE-led X-Ray Spectropolarimetric Campaign on the Soft State of Cygnus X-1: X-Ray Polarimetric Evidence for Strong Gravitational Lensing

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