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On the origin of black hole spin in high-mass black hole binaries: Cygnus X-1
Lund Observatory, Lund University.ORCID-id: 0000-0003-4378-8785
Vise andre og tillknytning
2011 (engelsk)Inngår i: Monthly notices of the Royal Astronomical Society, ISSN 0035-8711, E-ISSN 1365-2966, Vol. 412, nr 4, s. 2260-2264Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

To date, there have been several detections of high-mass black hole binaries in both the Milky Way and other galaxies. For some of these, the spin parameter of the black hole has been estimated. As many of these systems are quite tight, a suggested origin of the spin is angular momentum imparted by the synchronous rotation of the black hole progenitor with its binary companion. Using Cygnus X-1, the best studied high-mass black hole binary, we investigate this possibility. We find that such an origin of the spin is not likely, and our results point rather to the spin being the result of processes during the collapse.

sted, utgiver, år, opplag, sider
2011. Vol. 412, nr 4, s. 2260-2264
Emneord [en]
black hole physics, binaries: close, X-rays: binaries, X-rays: individual: Cygnus X-1
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-33460DOI: 10.1111/j.1365-2966.2010.18050.xISI: 000289295800010Scopus ID: 2-s2.0-79953792500OAI: oai:DiVA.org:kth-33460DiVA, id: diva2:418540
Forskningsfinansiär
Swedish Research Council, 2009-691, 2008-4089
Merknad

QC 20150721

Tilgjengelig fra: 2011-05-23 Laget: 2011-05-09 Sist oppdatert: 2017-12-11bibliografisk kontrollert

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Axelsson, MagnusRyde, Felix

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