A relativistic outflow model of the X-ray polarization in Cyg X-1
| Author | |
| Abstract |
We propose that the polarization of the emission from the X-ray binary Cygnus X-1, measured using the Imaging X-ray Polarimetry Explorer, is imprinted by bulk Comptonization of coronal emission in a mildly relativistic wind or jet with a hollow-cone geometry. Models based on scattering in a static corona overlying a thin accretion disc have difficulty reproducing the relatively high-polarization degree (PD $\sim 4~{{\ \rm per\ cent}}$) concurrently with the low inclination (∼30°) of the binary orbit. |
| Year of Publication |
2023
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| Date Published |
2023-11
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| Journal Title |
Monthly Notices of the Royal Astronomical Society: Letters
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| Volume |
528
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| Issue |
1
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| Start Page or Article ID (correct) |
L157-L160
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| ISSN Number |
1745-3925, 1745-3933
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| DOI | |
| Download citation | |
| JILA PI | |
Journal Article
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| JILA Topics | |
| Publication Status |
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