Polarized x-rays constrain the disk-jet geometry in the black hole x-ray binary Cygnus X-1

Krawczynski, Henric; Muleri, Fabio; Dovčiak, Michal; Veledina, Alexandra; Rodriguez Cavero, Nicole; Svoboda, Jiri; Ingram, Adam; Matt, Giorgio; Garcia, Javier A.; Loktev, Vladislav; Negro, Michela; Poutanen, Juri; Kitaguchi, Takao; Podgorný, Jakub; Rankin, John; Zhang, Wenda; Berdyugin, Andrei; Berdyugina, Svetlana V.; Bianchi, Stefano; Blinov, D.A.; Capitanio, Fiamma; Di Lalla, Niccolò; Draghis, Paul; Fabiani, Sergio; Kagitani, Masato; Kravtsov, Vadim; Kiehlmann, Sebastian; Latronico, Luca; Lutovinov, Alexander A.; Mandarakas, Nikos; Marin, Frédéric; Marinucci, Andrea; Miller, Jon M; Mizuno, Tsunefumi; Molkov, Sergey V.; Omodei, Nicola; Petrucci, Pierre-Olivier; Ratheesh, Ajay; Sakanoi, Takeshi; Semena, Andrei N.; Skalidis, Raphael; Soffitta, Paolo; Tennant, Allyn F.; Thalhammer, Phillipp; Tombesi, Francesco; Weisskopf, Martin C.; Wilms, Joern; Zhang, Sixuan; Agudo, Iván; Antonelli, L.A.; Bachetti, Matteo; Baldini, Luca; Baumgartner, Wayne H.; Bellazzini, Ronaldo; Bongiorno, Stephen D.; Bonino, Raffaella; Brez, Alessandro; Bucciantini, Niccolò; Castellano, Simone; Cavazzuti, Elisabetta; Ciprini, Stefano; Costa, Enrico; De Rosa, Alessandra; Del Monte, Ettore; Di Gesu, Laura; Di Marco, Alessandro; Donnarumma, Immacolata; Doroshenko, Victor; Ehlert, Steven R.; Enoto, Teruaki; Evangelista, Yuri; Ferrazzoli, Riccardo; Gunji, Shuichi; Hayashida, Kiyoshi; Heyl, Jeremy; Iwakiri, Wataru; Jorstad, Svetlana G.; Karas, Vladimir; Kolodziejczak, Jeffery J.; La Monaca, Fabio; Liodakis, Ioannis; Maldera, Simone; Manfreda, Alberto; Marscher, Alan P.; Marshall, Herman L.; Mitsuishi, Ikuyuki; Ng, Chi-Yung; O'Dell, Stephen L; Oppedisano, Chiara; Papitto, Alessandro; Pavlov, George G.; Peirson, Abel L.; Perri, Matteo; Pesce-Rollins, Melissa; Pilia, Maura; Possenti, Andrea; Puccetti, Simonetta; Ramsey, Brian D.; Romani, Roger W.; Sgrò, Carmelo; Slane, Patrick; Spandre, Gloria; Tamagawa, Toru; Tavecchio, Fabrizio; Taverna, Roberto; Tawara, Yuzuru; Thomas, Nicholas E.; Trois, Alessio; Tsygankov, Sergey; Turolla, Roberto; Vink, Jacco; Wu, Kinwah; Xie, Fei; Zane, Silvia

Polarized x-rays constrain the disk-jet geometry in the black hole x-ray binary Cygnus X-1

Files

2206.09972.pdf(1.34 MB)

First author draft

Date

2022-11-11

DOI

10.1126/science.add5399

Authors

Krawczynski, Henric

Muleri, Fabio

Dovčiak, Michal

Veledina, Alexandra

Rodriguez Cavero, Nicole

Svoboda, Jiri

Ingram, Adam

Matt, Giorgio

Garcia, Javier A.

Loktev, Vladislav

URI

https://hdl.handle.net/2144/46390

OA Version

First author draft

Citation

H. Krawczynski, F. Muleri, M. Dovčiak, A. Veledina, N. Rodriguez Cavero, J. Svoboda, A. Ingram, G. Matt, J.A. Garcia, V. Loktev, M. Negro, J. Poutanen, T. Kitaguchi, J. Podgorný, J. Rankin, W. Zhang, A. Berdyugin, S.V. Berdyugina, S. Bianchi, D. Blinov, F. Capitanio, N. Di Lalla, P. Draghis, S. Fabiani, M. Kagitani, V. Kravtsov, S. Kiehlmann, L. Latronico, A.A. Lutovinov, N. Mandarakas, F. Marin, A. Marinucci, J.M. Miller, T. Mizuno, S.V. Molkov, N. Omodei, P.-O. Petrucci, A. Ratheesh, T. Sakanoi, A.N. Semena, R. Skalidis, P. Soffitta, A.F. Tennant, P. Thalhammer, F. Tombesi, M.C. Weisskopf, J. Wilms, S. Zhang, I. Agudo, L.A. Antonelli, M. Bachetti, L. Baldini, W.H. Baumgartner, R. Bellazzini, S.D. Bongiorno, R. Bonino, A. Brez, N. Bucciantini, S. Castellano, E. Cavazzuti, S. Ciprini, E. Costa, A. De Rosa, E. Del Monte, L. Di Gesu, A. Di Marco, I. Donnarumma, V. Doroshenko, S.R. Ehlert, T. Enoto, Y. Evangelista, R. Ferrazzoli, S. Gunji, K. Hayashida, J. Heyl, W. Iwakiri, S.G. Jorstad, V. Karas, J.J. Kolodziejczak, F. La Monaca, I. Liodakis, S. Maldera, A. Manfreda, A.P. Marscher, H.L. Marshall, I. Mitsuishi, C.-Y. Ng, S.L. O'Dell, C. Oppedisano, A. Papitto, G.G. Pavlov, A.L. Peirson, M. Perri, M. Pesce-Rollins, M. Pilia, A. Possenti, S. Puccetti, B.D. Ramsey, R.W. Romani, C. Sgrò, P. Slane, G. Spandre, T. Tamagawa, F. Tavecchio, R. Taverna, Y. Tawara, N.E. Thomas, A. Trois, S. Tsygankov, R. Turolla, J. Vink, K. Wu, F. Xie, S. Zane. 2022. "Polarized x-rays constrain the disk-jet geometry in the black hole x-ray binary Cygnus X-1." Science, Volume 378, Issue 6620, pp.650-654. https://doi.org/10.1126/science.add5399

Abstract

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.

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