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Polarized x-rays co...
Polarized x-rays constrain the disk-jet geometry in the black hole x-ray binary Cygnus X-1
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- Krawczynski, Henric (författare)
- Washington Univ, Dept Phys, St Louis, MO 63130 USA.;Washington Univ, McDonnell Ctr Space Sci, St Louis, MO 63130 USA.
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- Rodriguez Cavero, Nicole (författare)
- Stockholms universitet,Nordiska institutet för teoretisk fysik (Nordita)
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- Zane, Silvia (författare)
- Univ Coll London, Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England.
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- Muleri, Fabio (författare)
- Ist Nazl Astrofis INAF, Ist Astrofis & Planetol Spaziali, I-00133 Rome, Italy.
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- Dovciak, Michal (författare)
- Czech Acad Sci, Astron Inst, Prague 14100 4, Czech Republic.
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- Veledina, Alexandra (författare)
- Nordita SU
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Washington Univ, Dept Phys, St Louis, MO 63130 USA;Washington Univ, McDonnell Ctr Space Sci, St Louis, MO 63130 USA. Nordiska institutet för teoretisk fysik (Nordita) (creator_code:org_t)
- American Association for the Advancement of Science (AAAS), 2022
- 2022
- Engelska.
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Ingår i: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 378:6620, s. 650-654
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- A black hole x-ray binary (XRB) system forms when gas is stripped from a normal star and accretes onto a black hole, which heats the gas sufficiently to emit x-rays. We report a polarimetric observation of the XRB Cygnus X-1 using the Imaging X-ray Polarimetry Explorer. The electric field position angle aligns with the outflowing jet, indicating that the jet is launched from the inner x-ray-emitting region. The polarization degree is 4.01 ± 0.20% at 2 to 8 kiloelectronvolts, implying that the accretion disk is viewed closer to edge-on than the binary orbit. These observations reveal that hot x-ray-emitting plasma is spatially extended in a plane perpendicular to, not parallel to, the jet axis.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Nyckelord
- article
- black hole
- electric field
- geometry
- human tissue
- nonhuman
- polarimetry
- polarization
- swan
- X ray
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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