A Two-Week $IXPE$ Monitoring Campaign on Mrk 421

Document detail

ID

oai:arXiv.org:2410.19983

Topic

Astrophysics - High Energy Astroph...

Author

Maksym, W. Peter Liodakis, Ioannis Saade, M. Lynne Kim, Dawoon E. Middei, Riccardo Di Gesu, Laura Kiehlmann, Sebastian Matzeu, Gabriele Agudo, Iván Marscher, Alan P. Ehlert, Steven R. Jorstad, Svetlana G. Kaaret, Philip Marshall, Herman L. Pacciani, Luigi Perri, Matteo Puccetti, Simonetta Kouch, Pouya M. Lindfors, Elina Aceituno, Francisco José Bonnoli, Giacomo Casanova, Víctor Escudero, Juan Agís-González, Beatriz Husillos, César Morcuende, Daniel Otero-Santos, Jorge Sota, Alfredo Piirola, Vilppu Imazawa, Ryo Sasada, Mahito Fukazawa, Yasushi Kawabata, Koji S. Uemura, Makoto Mizuno, Tsunefumi Nakaoka, Tatsuya Akitaya, Hiroshi McCall, Callum Jermak, Helen E. Steele, Iain A. Borman, George A. Grishina, Tatiana S. Hagen-Thorn, Vladimir A. Kopatskaya, Evgenia N. Larionova, Elena G. Morozova, Daria A. Savchenko, Sergey S. Shishkina, Ekaterina V. Troitskiy, Ivan S. Troitskaya, Yulia V. Vasilyev, Andrey A. Zhovtan, Alexey V. Myserlis, Ioannis Gurwell, Mark Keating, Garrett Rao, Ramprasad Pauley, Colt Angelakis, Emmanouil Kraus, Alexander Berdyugin, Andrei V. Kagitani, Masato Kravtsov, Vadim Poutanen, Juri Sakanoi, Takeshi Kang, Sincheol Lee, Sang-Sung Kim, Sang-Hyun Cheong, Whee Yeon Jeong, Hyeon-Woo Song, Chanwoo Blinov, Dmitry Shablovinskaya, Elena Antonelli, Lucio Angelo 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 Chen, Chien-Ting Ciprini, Stefano Costa, Enrico De Rosa, Alessandra Del Monte, Ettore Di Lalla, Niccoló Di Marco, Alessandro Donnarumma, Immacolata Doroshenko, Victor Dovčiak, Michal Enoto, Teruaki Evangelista, Yuri Fabiani, Sergio Ferrazzoli, Riccardo Garcia, Javier A. Gunji, Shuichi Hayashida, Kiyoshi Heyl, Jeremy Iwakiri, Wataru Karas, Vladimir Kislat, Fabian Kitaguchi, Takao Kolodziejczak, Jeffery J. Krawczynski, Henric La Monaca, Fabio Latronico, Luca Maldera, Simone Manfreda, Alberto Marin, Frédéric Marinucci, Andrea Massaro, Francesco Matt, Giorgio Mitsuishi, Ikuyuki Muleri, Fabio Negro, Michela Ng, C. -Y. O'Dell, Stephen L. 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 Tavecchio, Fabrizio Taverna, Roberto Tawara, Yuzuru Tennant, Allyn F. Thomas, Nicholas E. Tombesi, Francesco Trois, Alessio Tsygankov, Sergey S. Turolla, Roberto Vink, Jacco Weisskopf, Martin C. Wu, Kinwah Xie, Fei Zane, Silvia

Year

2024

listing date

10/30/2024

Keywords

x-ray polarization

Metrics

Abstract

X-ray polarization is a unique new probe of the particle acceleration in astrophysical jets made possible through the Imaging X-ray Polarimetry Explorer.

Here we report on the first dense X-ray polarization monitoring campaign on the blazar Mrk 421.

Our observations were accompanied by an even denser radio and optical polarization campaign.

We find significant short-timescale variability in both X-ray polarization degree and angle, including a $\sim90^\circ$ angle rotation about the jet axis.

We attribute this to random variations of the magnetic field, consistent with the presence of turbulence but also unlikely to be explained by turbulence alone.

At the same time, the degree of lower-energy polarization is significantly lower and shows no more than mild variability.

Our campaign provides further evidence for a scenario in which energy-stratified shock-acceleration of relativistic electrons, combined with a turbulent magnetic field, is responsible for optical to X-ray synchrotron emission in blazar jets.

;Comment: 23 pages, including 8 pages of appendices.

12 figures, 3 tables.

Submitted to ApJ

Maksym, W. Peter,Liodakis, Ioannis,Saade, M. Lynne,Kim, Dawoon E.,Middei, Riccardo,Di Gesu, Laura,Kiehlmann, Sebastian,Matzeu, Gabriele,Agudo, Iván,Marscher, Alan P.,Ehlert, Steven R.,Jorstad, Svetlana G.,Kaaret, Philip,Marshall, Herman L.,Pacciani, Luigi,Perri, Matteo,Puccetti, Simonetta,Kouch, Pouya M.,Lindfors, Elina,Aceituno, Francisco José,Bonnoli, Giacomo,Casanova, Víctor,Escudero, Juan,Agís-González, Beatriz,Husillos, César,Morcuende, Daniel,Otero-Santos, Jorge,Sota, Alfredo,Piirola, Vilppu,Imazawa, Ryo,Sasada, Mahito,Fukazawa, Yasushi,Kawabata, Koji S.,Uemura, Makoto,Mizuno, Tsunefumi,Nakaoka, Tatsuya,Akitaya, Hiroshi,McCall, Callum,Jermak, Helen E.,Steele, Iain A.,Borman, George A.,Grishina, Tatiana S.,Hagen-Thorn, Vladimir A.,Kopatskaya, Evgenia N.,Larionova, Elena G.,Morozova, Daria A.,Savchenko, Sergey S.,Shishkina, Ekaterina V.,Troitskiy, Ivan S.,Troitskaya, Yulia V.,Vasilyev, Andrey A.,Zhovtan, Alexey V.,Myserlis, Ioannis,Gurwell, Mark,Keating, Garrett,Rao, Ramprasad,Pauley, Colt,Angelakis, Emmanouil,Kraus, Alexander,Berdyugin, Andrei V.,Kagitani, Masato,Kravtsov, Vadim,Poutanen, Juri,Sakanoi, Takeshi,Kang, Sincheol,Lee, Sang-Sung,Kim, Sang-Hyun,Cheong, Whee Yeon,Jeong, Hyeon-Woo,Song, Chanwoo,Blinov, Dmitry,Shablovinskaya, Elena,Antonelli, Lucio Angelo,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,Chen, Chien-Ting,Ciprini, Stefano,Costa, Enrico,De Rosa, Alessandra,Del Monte, Ettore,Di Lalla, Niccoló,Di Marco, Alessandro,Donnarumma, Immacolata,Doroshenko, Victor,Dovčiak, Michal,Enoto, Teruaki,Evangelista, Yuri,Fabiani, Sergio,Ferrazzoli, Riccardo,Garcia, Javier A.,Gunji, Shuichi,Hayashida, Kiyoshi,Heyl, Jeremy,Iwakiri, Wataru,Karas, Vladimir,Kislat, Fabian,Kitaguchi, Takao,Kolodziejczak, Jeffery J.,Krawczynski, Henric,La Monaca, Fabio,Latronico, Luca,Maldera, Simone,Manfreda, Alberto,Marin, Frédéric,Marinucci, Andrea,Massaro, Francesco,Matt, Giorgio,Mitsuishi, Ikuyuki,Muleri, Fabio,Negro, Michela,Ng, C. -Y.,O'Dell, Stephen L.,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,Tavecchio, Fabrizio,Taverna, Roberto,Tawara, Yuzuru,Tennant, Allyn F.,Thomas, Nicholas E.,Tombesi, Francesco,Trois, Alessio,Tsygankov, Sergey S.,Turolla, Roberto,Vink, Jacco,Weisskopf, Martin C.,Wu, Kinwah,Xie, Fei,Zane, Silvia, 2024, A Two-Week $IXPE$ Monitoring Campaign on Mrk 421