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arXiv · 2311.16313

X-ray Polarization of the Eastern Lobe of SS 433

Philip Kaaret·Riccardo Ferrazzoli·Stefano Silvestri·Michela Negro·Alberto Manfreda·Kinwah Wu·Enrico Costa·Paolo Soffitta·Samar Safi-Harb·Juri Poutanen·Alexandra Veledina·Alessandro Di Marco·Patrick Slane·Stefano Bianchi·Adam Ingram·Roger W. Romani·Nicolo Cibrario·Brydyn Mac Intyre·Romana Mikusincova·Ajay Ratheesh·James F. Steiner·Jiri Svoboda·Stefano Tugliani·Ivan Agudo·Lucio A. Antonelli·Matteo Bachetti·Luca Baldini·Wayne H. Baumgartner·Ronaldo Bellazzini·Stephen D. Bongiorno·Raffaella Bonino·Alessandro Brez·Niccolo Bucciantini·Fiamma Capitanio·Simone Castellano·Elisabetta Cavazzuti·Chien-Ting Chen·Stefano Ciprini·Alessandra De Rosa·Ettore Del Monte·Laura Di Gesu·Niccolo Di Lalla·Immacolata Donnarumma·Victor Doroshenko·Michal Dovciak·Steven R. Ehlert·Teruaki Enoto·Yuri Evangelista·Sergio Fabiani·Javier A. Garcia·Shuichi Gunji·Kiyoshi Hayashida·Jeremy Heyl·Wataru Iwakiri·Svetlana G. Jorstad·Vladimir Karas·Fabian Kislat·Takao Kitaguchi·Jeffery J. Kolodziejczak·Henric Krawczynski·Fabio La Monaca·Luca Latronico·Ioannis Liodakis·Simone Maldera·Frederic Marin·Andrea Marinucci·Alan P. Marscher·Herman L. Marshall·Francesco Massaro·Giorgio Matt·Ikuyuki Mitsuishi·Tsunefumi Mizuno·Fabio Muleri·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·Maura Pilia·Andrea Possenti·Simonetta Puccetti·Brian D. Ramsey·John Rankin·Oliver J. Roberts·Carmelo Sgro·Gloria Spandre·Douglas A. Swartz·Toru Tamagawa·Fabrizio Tavecchio·Roberto Taverna·Yuzuru Tawara·Allyn F. Tennant·Nicholas E. Thomas·Francesco Tombesi·Alessio Trois
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Abstract

How astrophysical systems translate the kinetic energy of bulk motion into the acceleration of particles to very high energies is a pressing question. SS 433 is a microquasar that emits TeV gamma-rays indicating the presence of high-energy particles. A region of hard X-ray emission in the eastern lobe of SS 433 was recently identified as an acceleration site. We observed this region with the Imaging X-ray Polarimetry Explorer and measured a polarization degree in the range 38% to 77%. The high polarization degree indicates the magnetic field has a well ordered component if the X-rays are due to synchrotron emission. The polarization angle is in the range -12 to +10 degrees (east of north) which indicates that the magnetic field is parallel to the jet. Magnetic fields parallel to the bulk flow have also been found in supernova remnants and the jets of powerful radio galaxies. This may be caused by interaction of the flow with the ambient medium.

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Philip Kaaret, Riccardo Ferrazzoli, Stefano Silvestri, Michela Negro, Alberto Manfreda, Kinwah Wu, Enrico Costa, Paolo Soffitta, Samar Safi-Harb, Juri Poutanen, Alexandra Veledina, Alessandro Di Marco, Patrick Slane, Stefano Bianchi, Adam Ingram, Roger W. Romani, Nicolo Cibrario, Brydyn Mac Intyre, Romana Mikusincova, Ajay Ratheesh, James F. Steiner, Jiri Svoboda, Stefano Tugliani, Ivan Agudo, Lucio A. Antonelli, Matteo Bachetti, Luca Baldini, Wayne H. Baumgartner, Ronaldo Bellazzini, Stephen D. Bongiorno, Raffaella Bonino, Alessandro Brez, Niccolo Bucciantini, Fiamma Capitanio, Simone Castellano, Elisabetta Cavazzuti, Chien-Ting Chen, Stefano Ciprini, Alessandra De Rosa, Ettore Del Monte, Laura Di Gesu, Niccolo Di Lalla, Immacolata Donnarumma, Victor Doroshenko, Michal Dovciak, Steven R. Ehlert, Teruaki Enoto, Yuri Evangelista, Sergio Fabiani, Javier A. Garcia, Shuichi Gunji, Kiyoshi Hayashida, Jeremy Heyl, Wataru Iwakiri, Svetlana G. Jorstad, Vladimir Karas, Fabian Kislat, Takao Kitaguchi, Jeffery J. Kolodziejczak, Henric Krawczynski, Fabio La Monaca, Luca Latronico, Ioannis Liodakis, Simone Maldera, Frederic Marin, Andrea Marinucci, Alan P. Marscher, Herman L. Marshall, Francesco Massaro, Giorgio Matt, Ikuyuki Mitsuishi, Tsunefumi Mizuno, Fabio Muleri, 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, Maura Pilia, Andrea Possenti, Simonetta Puccetti, Brian D. Ramsey, John Rankin, Oliver J. Roberts, Carmelo Sgro, Gloria Spandre, Douglas A. Swartz, Toru Tamagawa, Fabrizio Tavecchio, Roberto Taverna, Yuzuru Tawara, Allyn F. Tennant, Nicholas E. Thomas, Francesco Tombesi, Alessio Trois. 2023-11-27. X-ray Polarization of the Eastern Lobe of SS 433. https://arxiv.org/abs/2311.16313

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