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DOI

  • Alexandra Veledina
  • Fabio Muleri
  • Juri Poutanen
  • Jakub Podgorný
  • Michal Dovčiak
  • Fiamma Capitanio
  • Eugene Churazov
  • Alessandra De Rosa
  • Alessandro Di Marco
  • Sofia V. Forsblom
  • Philip Kaaret
  • Henric Krawczynski
  • Fabio La Monaca
  • Alexander A. Lutovinov
  • Sergey V. Molkov
  • Alexander A. Mushtukov
  • Ajay Ratheesh
  • Nicole Rodriguez Cavero
  • James F. Steiner
  • Rashid A. Sunyaev
  • Sergey S. Tsygankov
  • Martin C. Weisskopf
  • Andrzej A. Zdziarski
  • Stefano Bianchi
  • Joe S. Bright
  • Nikolaj Bursov
  • Enrico Costa
  • Elise Egron
  • Javier A. Garcia
  • David A. Green
  • Mark Gurwell
  • Adam Ingram
  • Jari J. E. Kajava
  • Ruta Kale
  • Alex Kraus
  • Denys Malyshev
  • Frédéric Marin
  • Giorgio Matt
  • Michael McCollough
  • Ilya A. Mereminskiy
  • Nikolaj Nizhelsky
  • Giovanni Piano
  • Maura Pilia
  • Carlotta Pittori
  • Ramprasad Rao
  • Simona Righini
  • Paolo Soffitta
  • Anton Shevchenko
  • Jiri Svoboda
  • Francesco Tombesi
  • Sergei A. Trushkin
  • Peter Tsybulev
  • Francesco Ursini
  • Kinwah Wu
  • Iván Agudo
  • Lucio A. Antonelli
  • Matteo Bachetti
  • Luca Baldini
  • Wayne H. Baumgartner
  • Ronaldo Bellazzini
  • Stephen D. Bongiorno
  • Raffaella Bonino
  • Alessandro Brez
  • Niccolò Bucciantini
  • Simone Castellano
  • Elisabetta Cavazzuti
  • Chien-Ting Chen
  • Stefano Ciprini
  • Ettore Del Monte
  • Laura Di Gesu
  • Niccolò Di Lalla
  • Immacolata Donnarumma
  • Victor Doroshenko
  • Steven R. Ehlert
  • Teruaki Enoto
  • Yuri Evangelista
  • Sergio Fabiani
  • Riccardo Ferrazzoli
  • Shuichi Gunji
  • Kiyoshi Hayashida
  • Jeremy Heyl
  • Wataru Iwakiri
  • Vladimir Karas
  • Fabian Kislat
  • Takao Kitaguchi
  • Jeffery J. Kolodziejczak
  • Luca Latronico
  • Ioannis Liodakis
  • Simone Maldera
  • Alberto Manfreda
  • Andrea Marinucci
  • Alan P. Marscher
  • Herman L. Marshall
  • Francesco Massaro
  • Ikuyuki Mitsuishi
  • Tsunefumi Mizuno
  • Michela Negro
  • Chi-Yung Ng
  • Stephen L. O'Dell
  • Nicola Omodei
  • Chiara Oppedisano
  • Alessandro Papitto
  • George G. Pavlov
  • Abel L. Peirson
  • Matteo Perri
  • Melissa Pesce-Rollins
  • Pierre-Olivier Petrucci
  • Andrea Possenti
  • Simonetta Puccetti
  • Brian D. Ramsey
  • John Rankin
  • Oliver Roberts
  • Roger W. Romani
  • Carmelo Sgrò
  • Patrick Slane
  • Gloria Spandre
  • Doug Swartz
  • Toru Tamagawa
  • Fabrizio Tavecchio
  • Roberto Taverna
  • Yuzuru Tawara
  • Allyn F. Tennant
  • Nicholas E. Thomas
  • Alessio Trois
  • Roberto Turolla
  • Jacco Vink
  • Fei Xie
  • Silvia Zane
The accretion of matter by compact objects can be inhibited by radiation pressure if the luminosity exceeds a critical value known as the Eddington limit. The discovery of ultraluminous X-ray sources has shown that accretion can proceed even when the apparent luminosity considerably exceeds this limit. A high apparent luminosity might be produced due to the geometric beaming of radiation by an outflow. The outflow half-opening angle, which determines the amplification due to beaming, has never been robustly constrained. Using the Imaging X-ray Polarimetry Explorer, we measured the X-ray polarization in the Galactic X-ray binary Cygnus X-3 (Cyg X-3). We found high, >20%, nearly energy-independent linear polarization orthogonal to the direction of the radio ejections. These properties unambiguously indicate the presence of a collimating outflow from the X-ray binary Cyg X-3 and constrain its half-opening angle to ≲15°. Thus, the source can be used as a laboratory for studying the supercritical accretion regime. This finding underscores the importance of X-ray polarimetry in advancing our understanding of accreting sources.
Язык оригиналарусский
ЖурналNature Astronomy
DOI
СостояниеЭлектронная публикация перед печатью - 21 июн 2024

ID: 121621487