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X-ray Polarization of the High-Synchrotron-Peak BL Lacertae Object 1ES 1959+650 during Intermediate and High X-ray Flux States

Fuente: arXiv

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Détails bibliographiques
Auteurs principaux:	Pacciani, Luigi, Kim, Dawoon E., Middei, Riccardo, Marshall, Herman L., Marscher, Alan P., Liodakis, Ioannis, Agudo, Iván, Jorstad, Svetlana G., Poutanen, Juri, Errando, Manel, Di Gesu, Laura, Negro, Michela, Tavecchio, Fabrizio, Wu, Kinwah, Chen, Chien-Ting, Muleri, Fabio, Antonelli, Lucio Angelo, Donnarumma, Immacolata, Ehlert, Steven R., Massaro, Francesco, O'Dell, Stephen L., Perri, Matteo, Puccetti, Simonetta, Bonnoli, Giacomo, Kouch, Pouya M., Angelakis, Emmanouil, Kraus, Alexander, Bachetti, Matteo, Baldini, Luca, Baumgartner, Wayne H., Bellazzini, Ronaldo, Bianchi, Stefano, Bongiorno, Stephen D., Bonino, Raffaella, Brez, Alessandro, Bucciantini, Niccoló, Capitanio, Fiamma, Castellano, Simone, Cavazzuti, Elisabetta, Ciprini, Stefano, Costa, Enrico, De Rosa, Alessandra, Del Monte, Ettore, Di Lalla, Niccoló, Di Marco, Alessandro, Doroshenko, Victor, Dovčiak, Michal, Enoto, Teruaki, Evangelista, Yuri, Fabiani, Sergio, Ferrazzoli, Riccardo, Garcia, Javier A., Gunji, Shuichi, Heyl, Jeremy, Iwakiri, Wataru, Kaaret, Philip, Karas, Vladimir, Kislat, Fabian, Kolodziejczak, Jeffery J., Krawczynski, Henric, La Monaca, Fabio, Latronico, Luca, Maldera, Simone, Manfreda, Alberto, Marin, Frédéric, Marinucci, Andrea, Matt, Giorgio, Mizuno, Tsunefumi, Ng, C. -Y., Omodei, Nicola, Oppedisano, Chiara, Papitto, Alessandro, Pavlov, George G., Peirson, Abel Lawrence, Pesce-Rollins, Melissa, Petrucci, Pierre-Olivier, Pilia, Maura, Possenti, Andrea, Ramsey, Brian D., Rankin, John, Ratheesh, Ajay, Roberts, Oliver J., Romani, Roger W., Sgró, Carmelo, Slane, Patrick, Soffitta, Paolo, Spandre, Gloria, Swartz, Douglas A., Tamagawa, Toru, Taverna, Roberto, Tennant, Allyn F., Thomas, Nicholas E., Tombesi, Francesco, Trois, Alessio, Tsygankov, Sergey S., Turolla, Roberto, Vink, Jacco, Weisskopf, Martin C., Xie, Fei, Zane, Silvia
Format:	Preprint
Publié:	2025
Sujets:	High Energy Astrophysical Phenomena
Accès en ligne:	Acceder al recurso
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author	Pacciani, Luigi Kim, Dawoon E. Middei, Riccardo Marshall, Herman L. Marscher, Alan P. Liodakis, Ioannis Agudo, Iván Jorstad, Svetlana G. Poutanen, Juri Errando, Manel Di Gesu, Laura Negro, Michela Tavecchio, Fabrizio Wu, Kinwah Chen, Chien-Ting Muleri, Fabio Antonelli, Lucio Angelo Donnarumma, Immacolata Ehlert, Steven R. Massaro, Francesco O'Dell, Stephen L. Perri, Matteo Puccetti, Simonetta Bonnoli, Giacomo Kouch, Pouya M. Angelakis, Emmanouil Kraus, Alexander Bachetti, Matteo Baldini, Luca Baumgartner, Wayne H. Bellazzini, Ronaldo Bianchi, Stefano Bongiorno, Stephen D. Bonino, Raffaella Brez, Alessandro Bucciantini, Niccoló Capitanio, Fiamma Castellano, Simone Cavazzuti, Elisabetta Ciprini, Stefano Costa, Enrico De Rosa, Alessandra Del Monte, Ettore Di Lalla, Niccoló Di Marco, Alessandro Doroshenko, Victor Dovčiak, Michal Enoto, Teruaki Evangelista, Yuri Fabiani, Sergio Ferrazzoli, Riccardo Garcia, Javier A. Gunji, Shuichi Heyl, Jeremy Iwakiri, Wataru Kaaret, Philip Karas, Vladimir Kislat, Fabian Kolodziejczak, Jeffery J. Krawczynski, Henric La Monaca, Fabio Latronico, Luca Maldera, Simone Manfreda, Alberto Marin, Frédéric Marinucci, Andrea Matt, Giorgio Mizuno, Tsunefumi Ng, C. -Y. Omodei, Nicola Oppedisano, Chiara Papitto, Alessandro Pavlov, George G. Peirson, Abel Lawrence Pesce-Rollins, Melissa Petrucci, Pierre-Olivier Pilia, Maura Possenti, Andrea Ramsey, Brian D. Rankin, John Ratheesh, Ajay Roberts, Oliver J. Romani, Roger W. Sgró, Carmelo Slane, Patrick Soffitta, Paolo Spandre, Gloria Swartz, Douglas A. Tamagawa, Toru Taverna, Roberto Tennant, Allyn F. Thomas, Nicholas E. Tombesi, Francesco Trois, Alessio Tsygankov, Sergey S. Turolla, Roberto Vink, Jacco Weisskopf, Martin C. Xie, Fei Zane, Silvia
author_facet	Pacciani, Luigi Kim, Dawoon E. Middei, Riccardo Marshall, Herman L. Marscher, Alan P. Liodakis, Ioannis Agudo, Iván Jorstad, Svetlana G. Poutanen, Juri Errando, Manel Di Gesu, Laura Negro, Michela Tavecchio, Fabrizio Wu, Kinwah Chen, Chien-Ting Muleri, Fabio Antonelli, Lucio Angelo Donnarumma, Immacolata Ehlert, Steven R. Massaro, Francesco O'Dell, Stephen L. Perri, Matteo Puccetti, Simonetta Bonnoli, Giacomo Kouch, Pouya M. Angelakis, Emmanouil Kraus, Alexander Bachetti, Matteo Baldini, Luca Baumgartner, Wayne H. Bellazzini, Ronaldo Bianchi, Stefano Bongiorno, Stephen D. Bonino, Raffaella Brez, Alessandro Bucciantini, Niccoló Capitanio, Fiamma Castellano, Simone Cavazzuti, Elisabetta Ciprini, Stefano Costa, Enrico De Rosa, Alessandra Del Monte, Ettore Di Lalla, Niccoló Di Marco, Alessandro Doroshenko, Victor Dovčiak, Michal Enoto, Teruaki Evangelista, Yuri Fabiani, Sergio Ferrazzoli, Riccardo Garcia, Javier A. Gunji, Shuichi Heyl, Jeremy Iwakiri, Wataru Kaaret, Philip Karas, Vladimir Kislat, Fabian Kolodziejczak, Jeffery J. Krawczynski, Henric La Monaca, Fabio Latronico, Luca Maldera, Simone Manfreda, Alberto Marin, Frédéric Marinucci, Andrea Matt, Giorgio Mizuno, Tsunefumi Ng, C. -Y. Omodei, Nicola Oppedisano, Chiara Papitto, Alessandro Pavlov, George G. Peirson, Abel Lawrence Pesce-Rollins, Melissa Petrucci, Pierre-Olivier Pilia, Maura Possenti, Andrea Ramsey, Brian D. Rankin, John Ratheesh, Ajay Roberts, Oliver J. Romani, Roger W. Sgró, Carmelo Slane, Patrick Soffitta, Paolo Spandre, Gloria Swartz, Douglas A. Tamagawa, Toru Taverna, Roberto Tennant, Allyn F. Thomas, Nicholas E. Tombesi, Francesco Trois, Alessio Tsygankov, Sergey S. Turolla, Roberto Vink, Jacco Weisskopf, Martin C. Xie, Fei Zane, Silvia
contents	We report the Imaging X-ray Polarimetry Explorer (IXPE) polarimetric and simultaneous multiwavelength observations of the high-energy-peaked BL Lacertae (HBL) object 1ES 1959+650, performed in 2022 October and 2023 August. In 2022 October IXPE measured an average polarization degree $Π_{\rm X}=9.4\;\!\%\pm 1.6\;\!\%$ and an electric-vector position angle $ψ_{\rm X}=53^{\circ}\pm 5^{\circ}$. The polarized X-ray emission can be decomposed into a constant component, plus a rotating component, with rotation velocity $ω_{\rm EVPA}=(-117\;\!\pm\;\!12)$ ${\rm deg}\;\!{\rm d}^{-1}$. In 2023 August, during a period of pronounced activity of the source, IXPE measured an average $Π_{\rm X}=12.4\;\!\%\pm0.7\;\!\%$ and $ψ_X=20^{\circ}\pm2^{\circ}$, with evidence ($\sim$0.4$\;\!\%$ chance probability) for a rapidly rotating component with $ω_{\rm EVPA}=(1864\;\!\pm\;\!34)$ ${\rm deg}\;\!{\rm d}^{-1}$. These findings suggest the presence of a helical magnetic field in the jet of 1ES 1959+650 or stochastic processes governing the field in turbulent plasma. Our multiwavelength campaigns from radio to X-ray reveal variability in both polarization and flux from optical to X-rays. We interpret the results in terms of a relatively slowly varying component dominating the radio and optical emission, while rapidly variable polarized components dominate the X-ray and provide minor contribution at optical wavelengths. The radio and optical data indicate that on parsec scales the magnetic field is primarily orthogonal to the jet direction. On the contrary, X-ray measurements show a magnetic field almost aligned with the parsec jet direction. Confronting with other IXPE observations, we guess that the magnetic field of HBLs on sub-pc scale should be rather unstable, often changing its direction with respect to the VLBA jet.
format	Preprint
id	arxiv_https___arxiv_org_abs_2503_21344
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	X-ray Polarization of the High-Synchrotron-Peak BL Lacertae Object 1ES 1959+650 during Intermediate and High X-ray Flux States Pacciani, Luigi Kim, Dawoon E. Middei, Riccardo Marshall, Herman L. Marscher, Alan P. Liodakis, Ioannis Agudo, Iván Jorstad, Svetlana G. Poutanen, Juri Errando, Manel Di Gesu, Laura Negro, Michela Tavecchio, Fabrizio Wu, Kinwah Chen, Chien-Ting Muleri, Fabio Antonelli, Lucio Angelo Donnarumma, Immacolata Ehlert, Steven R. Massaro, Francesco O'Dell, Stephen L. Perri, Matteo Puccetti, Simonetta Bonnoli, Giacomo Kouch, Pouya M. Angelakis, Emmanouil Kraus, Alexander Bachetti, Matteo Baldini, Luca Baumgartner, Wayne H. Bellazzini, Ronaldo Bianchi, Stefano Bongiorno, Stephen D. Bonino, Raffaella Brez, Alessandro Bucciantini, Niccoló Capitanio, Fiamma Castellano, Simone Cavazzuti, Elisabetta Ciprini, Stefano Costa, Enrico De Rosa, Alessandra Del Monte, Ettore Di Lalla, Niccoló Di Marco, Alessandro Doroshenko, Victor Dovčiak, Michal Enoto, Teruaki Evangelista, Yuri Fabiani, Sergio Ferrazzoli, Riccardo Garcia, Javier A. Gunji, Shuichi Heyl, Jeremy Iwakiri, Wataru Kaaret, Philip Karas, Vladimir Kislat, Fabian Kolodziejczak, Jeffery J. Krawczynski, Henric La Monaca, Fabio Latronico, Luca Maldera, Simone Manfreda, Alberto Marin, Frédéric Marinucci, Andrea Matt, Giorgio Mizuno, Tsunefumi Ng, C. -Y. Omodei, Nicola Oppedisano, Chiara Papitto, Alessandro Pavlov, George G. Peirson, Abel Lawrence Pesce-Rollins, Melissa Petrucci, Pierre-Olivier Pilia, Maura Possenti, Andrea Ramsey, Brian D. Rankin, John Ratheesh, Ajay Roberts, Oliver J. Romani, Roger W. Sgró, Carmelo Slane, Patrick Soffitta, Paolo Spandre, Gloria Swartz, Douglas A. Tamagawa, Toru Taverna, Roberto Tennant, Allyn F. Thomas, Nicholas E. Tombesi, Francesco Trois, Alessio Tsygankov, Sergey S. Turolla, Roberto Vink, Jacco Weisskopf, Martin C. Xie, Fei Zane, Silvia High Energy Astrophysical Phenomena We report the Imaging X-ray Polarimetry Explorer (IXPE) polarimetric and simultaneous multiwavelength observations of the high-energy-peaked BL Lacertae (HBL) object 1ES 1959+650, performed in 2022 October and 2023 August. In 2022 October IXPE measured an average polarization degree $Π_{\rm X}=9.4\;\!\%\pm 1.6\;\!\%$ and an electric-vector position angle $ψ_{\rm X}=53^{\circ}\pm 5^{\circ}$. The polarized X-ray emission can be decomposed into a constant component, plus a rotating component, with rotation velocity $ω_{\rm EVPA}=(-117\;\!\pm\;\!12)$ ${\rm deg}\;\!{\rm d}^{-1}$. In 2023 August, during a period of pronounced activity of the source, IXPE measured an average $Π_{\rm X}=12.4\;\!\%\pm0.7\;\!\%$ and $ψ_X=20^{\circ}\pm2^{\circ}$, with evidence ($\sim$0.4$\;\!\%$ chance probability) for a rapidly rotating component with $ω_{\rm EVPA}=(1864\;\!\pm\;\!34)$ ${\rm deg}\;\!{\rm d}^{-1}$. These findings suggest the presence of a helical magnetic field in the jet of 1ES 1959+650 or stochastic processes governing the field in turbulent plasma. Our multiwavelength campaigns from radio to X-ray reveal variability in both polarization and flux from optical to X-rays. We interpret the results in terms of a relatively slowly varying component dominating the radio and optical emission, while rapidly variable polarized components dominate the X-ray and provide minor contribution at optical wavelengths. The radio and optical data indicate that on parsec scales the magnetic field is primarily orthogonal to the jet direction. On the contrary, X-ray measurements show a magnetic field almost aligned with the parsec jet direction. Confronting with other IXPE observations, we guess that the magnetic field of HBLs on sub-pc scale should be rather unstable, often changing its direction with respect to the VLBA jet.
title	X-ray Polarization of the High-Synchrotron-Peak BL Lacertae Object 1ES 1959+650 during Intermediate and High X-ray Flux States
topic	High Energy Astrophysical Phenomena
url	https://arxiv.org/abs/2503.21344