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  • Poutanen, JuriStockholms universitet,KTH,Nordic Institute for Theoretical Physics NORDITA,Univ Turku, Dept Phys & Astron, FI-20014 Turku, Finland.;Russian Acad Sci, Space Res Inst IKI, Moscow 117997, Russia.; Stockholm Univ, SE-10691 Stockholm, Sweden.,Nordiska institutet för teoretisk fysik (Nordita),University of Turku, Finland; Space Research Institute (IKI) of the Russian Academy of Sciences, Russia (author)

Black hole spin-orbit misalignment in the x-ray binary MAXI J1820+070

  • Article/chapterEnglish2022

Publisher, publication year, extent ...

  • American Association for the Advancement of Science (AAAS),2022
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:kth-310783
  • https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-310783URI
  • https://doi.org/10.1126/science.abl4679DOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-203712URI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • QC 20220411
  • The observational signatures of black holes in x-ray binary systems depend on their masses, spins, accretion rate, and the misalignment angle between the black hole spin and the orbital angular momentum. We present optical polarimetric observations of the black hole x-ray binary MAXI J1820+070, from which we constrain the position angle of the binary orbital. Combining this with previous determinations of the relativistic jet orientation. which traces the black hole spin, and the inclination of the orbit, we determine a lower limit of 40 degrees on the spin-orbit misalignment angle. The misalignment must originate from either the binary evolution or black hole formation stages. If other x-ray binaries have similarly large misalignments, these would bias measurements of black hole masses and spins from x-ray observations.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Veledina, AlexandraStockholms universitet,KTH,Nordic Institute for Theoretical Physics NORDITA,Univ Turku, Dept Phys & Astron, FI-20014 Turku, Finland.;Russian Acad Sci, Space Res Inst IKI, Moscow 117997, Russia.; Stockholm Univ, SE-10691 Stockholm, Sweden.,Nordiska institutet för teoretisk fysik (Nordita),University of Turku, Finland; Space Research Institute (IKI) of the Russian Academy of Sciences, Russia(Swepub:su)avele (author)
  • Berdyugin, Andrei, VUniv Turku, Dept Phys & Astron, FI-20014 Turku, Finland. (author)
  • Berdyugina, Svetlana, VLeibniz Inst Sonnenphys, D-79104 Freiburg, Germany. (author)
  • Jermak, HelenLiverpool John Moores Univ, Astrophys Res Inst, Liverpool L3 5RF, Merseyside, England. (author)
  • Jonker, Peter G.Radboud Univ Nijmegen, Inst Math Astrophys & Particle Phys IMAPP, Dept Astrophys, NL-6500 GL Nijmegen, Netherlands.;Space Res Org Netherlands SRON, Netherlands Inst Space Res, NL-2333 CA Leiden, Netherlands. (author)
  • Kajava, Jari J. E.Univ Turku, Dept Phys & Astron, FI-20014 Turku, Finland.;Ctr Astrobiol, S-28692 Madrid, Spain. (author)
  • Kosenkov, Ilia A.Univ Turku, Dept Phys & Astron, FI-20014 Turku, Finland. (author)
  • Kravtsov, VadimUniv Turku, Dept Phys & Astron, FI-20014 Turku, Finland. (author)
  • Piirola, VilppuUniv Turku, Dept Phys & Astron, FI-20014 Turku, Finland. (author)
  • Shrestha, ManishaLiverpool John Moores Univ, Astrophys Res Inst, Liverpool L3 5RF, Merseyside, England.;Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA. (author)
  • Torres, Manuel A. PerezInst Astrofis Canarias, E-38205 Tenerife, Spain.;Univ La Laguna, Dept Astrofis, E-38206 Tenerife, Spain. (author)
  • Tsygankov, Sergey S.Univ Turku, Dept Phys & Astron, FI-20014 Turku, Finland.;Russian Acad Sci, Space Res Inst IKI, Moscow 117997, Russia. (author)
  • KTHNordic Institute for Theoretical Physics NORDITA (creator_code:org_t)

Related titles

  • In:Science: American Association for the Advancement of Science (AAAS)375:6583, s. 874-+0036-80751095-9203

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