Standard
A Two-Week IXPE Monitoring Campaign on Mrk 421. / 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; José Aceituno, Francisco; 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.
Результаты исследований: Иные виды публикаций › иная › научная
Harvard
Maksym, WP, Liodakis, I, Saade, ML, Kim, DE, Middei, R, Di Gesu, L, Kiehlmann, S, Matzeu, G, Agudo, I, Marscher, AP, Ehlert, SR
, Jorstad, SG, Kaaret, P, Marshall, HL, Pacciani, L, Perri, M, Puccetti, S, Kouch, PM, Lindfors, E, José Aceituno, F, Bonnoli, G, Casanova, V, Escudero, J, Agís-González, B, Husillos, C, Morcuende, D, Otero-Santos, J, Sota, A, Piirola, V, Imazawa, R, Sasada, M, Fukazawa, Y, Kawabata, KS, Uemura, M, Mizuno, T, Nakaoka, T, Akitaya, H, McCall, C, Jermak, HE, Steele, IA, Borman, GA
, Grishina, TS, Hagen-Thorn, VA, Kopatskaya, EN, Larionova, EG, Morozova, DA, Savchenko, SS, Shishkina, EV, Troitskiy, IS, Troitskaya, YV, Vasilyev, AA, Zhovtan, AV, Myserlis, I, Gurwell, M, Keating, G, Rao, R, Pauley, C, Angelakis, E, Kraus, A, Berdyugin, AV, Kagitani, M
, Kravtsov, V, Poutanen, J, Sakanoi, T, Kang, S, Lee, S-S, Kim, S-H, Cheong, WY, Jeong, H-W, Song, C, Blinov, D, Shablovinskaya, E, Antonelli, LA, Bachetti, M, Baldini, L, Baumgartner, WH, Bellazzini, R, Bianchi, S, Bongiorno, SD, Bonino, R, Brez, A, Bucciantini, N, Capitanio, F, Castellano, S, Cavazzuti, E, Chen, C-T, Ciprini, S, Costa, E, De Rosa, A, Del Monte, E, Di Lalla, N, Di Marco, A, Donnarumma, I, Doroshenko, V, Dovčiak, M, Enoto, T, Evangelista, Y, Fabiani, S, Ferrazzoli, R, Garcia, JA, Gunji, S, Hayashida, K, Heyl, J, Iwakiri, W, Karas, V, Kislat, F, Kitaguchi, T, Kolodziejczak, JJ, Krawczynski, H, La Monaca, F, Latronico, L, Maldera, S, Manfreda, A, Marin, F, Marinucci, A, Massaro, F, Matt, G, Mitsuishi, I, Muleri, F, Negro, M, Ng, C-Y, O'Dell, SL, Omodei, N, Oppedisano, C, Papitto, A, Pavlov, GG, Peirson, AL, Pesce-Rollins, M, Petrucci, P-O, Pilia, M, Possenti, A, Ramsey, BD, Rankin, J, Ratheesh, A, Roberts, OJ, Romani, RW, Sgró, C, Slane, P, Soffitta, P, Spandre, G, Swartz, DA, Tamagawa, T, Tavecchio, F, Taverna, R, Tawara, Y, Tennant, AF, Thomas, NE, Tombesi, F, Trois, A, Tsygankov, SS, Turolla, R, Vink, J, Weisskopf, MC, Wu, K, Xie, F & Zane, S 2024,
A Two-Week IXPE Monitoring Campaign on Mrk 421..
https://doi.org/10.48550/arXiv.2410.19983APA
Maksym, W. P., Liodakis, I., Saade, M. L., Kim, D. E., Middei, R., Di Gesu, L., Kiehlmann, S., Matzeu, G., Agudo, I., Marscher, A. P., Ehlert, S. R.
, Jorstad, S. G., Kaaret, P., Marshall, H. L., Pacciani, L., Perri, M., Puccetti, S., Kouch, P. M., Lindfors, E., ... Zane, S. (2024, Окт. 23).
A Two-Week IXPE Monitoring Campaign on Mrk 421. Рукопись передана для публикации.
https://doi.org/10.48550/arXiv.2410.19983Vancouver
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 ; José Aceituno, Francisco ; 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. /
A Two-Week IXPE Monitoring Campaign on Mrk 421. 2024.
BibTeX
@misc{40d86eb99e7440439d4f351938411ed8,
title = "A Two-Week IXPE Monitoring Campaign on Mrk 421",
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.",
keywords = "Astrophysics - High Energy Astrophysical Phenomena",
author = "Maksym, {W. Peter} and Ioannis Liodakis and Saade, {M. Lynne} and Kim, {Dawoon E.} and Riccardo Middei and {Di Gesu}, Laura and Sebastian Kiehlmann and Gabriele Matzeu and Iv{\'a}n Agudo and Marscher, {Alan P.} and Ehlert, {Steven R.} and Jorstad, {Svetlana G.} and Philip Kaaret and Marshall, {Herman L.} and Luigi Pacciani and Matteo Perri and Simonetta Puccetti and Kouch, {Pouya M.} and Elina Lindfors and {Jos{\'e} Aceituno}, Francisco and Giacomo Bonnoli and V{\'i}ctor Casanova and Juan Escudero and Beatriz Ag{\'i}s-Gonz{\'a}lez and C{\'e}sar Husillos and Daniel Morcuende and Jorge Otero-Santos and Alfredo Sota and Vilppu Piirola and Ryo Imazawa and Mahito Sasada and Yasushi Fukazawa and Kawabata, {Koji S.} and Makoto Uemura and Tsunefumi Mizuno and Tatsuya Nakaoka and Hiroshi Akitaya and Callum McCall and Jermak, {Helen E.} and Steele, {Iain A.} and Borman, {George A.} and Grishina, {Tatiana S.} and Hagen-Thorn, {Vladimir A.} and Kopatskaya, {Evgenia N.} and Larionova, {Elena G.} and Morozova, {Daria A.} and Savchenko, {Sergey S.} and Shishkina, {Ekaterina V.} and Troitskiy, {Ivan S.} and Troitskaya, {Yulia V.} and Vasilyev, {Andrey A.} and Zhovtan, {Alexey V.} and Ioannis Myserlis and Mark Gurwell and Garrett Keating and Ramprasad Rao and Colt Pauley and Emmanouil Angelakis and Alexander Kraus and Berdyugin, {Andrei V.} and Masato Kagitani and Vadim Kravtsov and Juri Poutanen and Takeshi Sakanoi and Sincheol Kang and Sang-Sung Lee and Sang-Hyun Kim and Cheong, {Whee Yeon} and Hyeon-Woo Jeong and Chanwoo Song and Dmitry Blinov and Elena Shablovinskaya and Antonelli, {Lucio Angelo} and Matteo Bachetti and Luca Baldini and Baumgartner, {Wayne H.} and Ronaldo Bellazzini and Stefano Bianchi and Bongiorno, {Stephen D.} and Raffaella Bonino and Alessandro Brez and Niccol{\'o} Bucciantini and Fiamma Capitanio and Simone Castellano and Elisabetta Cavazzuti and Chien-Ting Chen and Stefano Ciprini and Enrico Costa and {De Rosa}, Alessandra and {Del Monte}, Ettore and {Di Lalla}, Niccol{\'o} and {Di Marco}, Alessandro and Immacolata Donnarumma and Victor Doroshenko and Michal Dov{\v c}iak and Teruaki Enoto and Yuri Evangelista and Sergio Fabiani and Riccardo Ferrazzoli and Garcia, {Javier A.} and Shuichi Gunji and Kiyoshi Hayashida and Jeremy Heyl and Wataru Iwakiri and Vladimir Karas and Fabian Kislat and Takao Kitaguchi and Kolodziejczak, {Jeffery J.} and Henric Krawczynski and {La Monaca}, Fabio and Luca Latronico and Simone Maldera and Alberto Manfreda and Fr{\'e}d{\'e}ric Marin and Andrea Marinucci and Francesco Massaro and Giorgio Matt and Ikuyuki Mitsuishi and Fabio Muleri and Michela Negro and Ng, {C. -Y.} and O'Dell, {Stephen L.} and Nicola Omodei and Chiara Oppedisano and Alessandro Papitto and Pavlov, {George G.} and Peirson, {Abel Lawrence} and Melissa Pesce-Rollins and Pierre-Olivier Petrucci and Maura Pilia and Andrea Possenti and Ramsey, {Brian D.} and John Rankin and Ajay Ratheesh and Roberts, {Oliver J.} and Romani, {Roger W.} and Carmelo Sgr{\'o} and Patrick Slane and Paolo Soffitta and Gloria Spandre and Swartz, {Douglas A.} and Toru Tamagawa and Fabrizio Tavecchio and Roberto Taverna and Yuzuru Tawara and Tennant, {Allyn F.} and Thomas, {Nicholas E.} and Francesco Tombesi and Alessio Trois and Tsygankov, {Sergey S.} and Roberto Turolla and Jacco Vink and Weisskopf, {Martin C.} and Kinwah Wu and Fei Xie and Silvia Zane",
year = "2024",
month = oct,
day = "23",
doi = "10.48550/arXiv.2410.19983",
language = "English",
type = "Other",
}
RIS
TY - GEN
T1 - A Two-Week IXPE Monitoring Campaign on Mrk 421
AU - Maksym, W. Peter
AU - Liodakis, Ioannis
AU - Saade, M. Lynne
AU - Kim, Dawoon E.
AU - Middei, Riccardo
AU - Di Gesu, Laura
AU - Kiehlmann, Sebastian
AU - Matzeu, Gabriele
AU - Agudo, Iván
AU - Marscher, Alan P.
AU - Ehlert, Steven R.
AU - Jorstad, Svetlana G.
AU - Kaaret, Philip
AU - Marshall, Herman L.
AU - Pacciani, Luigi
AU - Perri, Matteo
AU - Puccetti, Simonetta
AU - Kouch, Pouya M.
AU - Lindfors, Elina
AU - José Aceituno, Francisco
AU - Bonnoli, Giacomo
AU - Casanova, Víctor
AU - Escudero, Juan
AU - Agís-González, Beatriz
AU - Husillos, César
AU - Morcuende, Daniel
AU - Otero-Santos, Jorge
AU - Sota, Alfredo
AU - Piirola, Vilppu
AU - Imazawa, Ryo
AU - Sasada, Mahito
AU - Fukazawa, Yasushi
AU - Kawabata, Koji S.
AU - Uemura, Makoto
AU - Mizuno, Tsunefumi
AU - Nakaoka, Tatsuya
AU - Akitaya, Hiroshi
AU - McCall, Callum
AU - Jermak, Helen E.
AU - Steele, Iain A.
AU - Borman, George A.
AU - Grishina, Tatiana S.
AU - Hagen-Thorn, Vladimir A.
AU - Kopatskaya, Evgenia N.
AU - Larionova, Elena G.
AU - Morozova, Daria A.
AU - Savchenko, Sergey S.
AU - Shishkina, Ekaterina V.
AU - Troitskiy, Ivan S.
AU - Troitskaya, Yulia V.
AU - Vasilyev, Andrey A.
AU - Zhovtan, Alexey V.
AU - Myserlis, Ioannis
AU - Gurwell, Mark
AU - Keating, Garrett
AU - Rao, Ramprasad
AU - Pauley, Colt
AU - Angelakis, Emmanouil
AU - Kraus, Alexander
AU - Berdyugin, Andrei V.
AU - Kagitani, Masato
AU - Kravtsov, Vadim
AU - Poutanen, Juri
AU - Sakanoi, Takeshi
AU - Kang, Sincheol
AU - Lee, Sang-Sung
AU - Kim, Sang-Hyun
AU - Cheong, Whee Yeon
AU - Jeong, Hyeon-Woo
AU - Song, Chanwoo
AU - Blinov, Dmitry
AU - Shablovinskaya, Elena
AU - Antonelli, Lucio Angelo
AU - Bachetti, Matteo
AU - Baldini, Luca
AU - Baumgartner, Wayne H.
AU - Bellazzini, Ronaldo
AU - Bianchi, Stefano
AU - Bongiorno, Stephen D.
AU - Bonino, Raffaella
AU - Brez, Alessandro
AU - Bucciantini, Niccoló
AU - Capitanio, Fiamma
AU - Castellano, Simone
AU - Cavazzuti, Elisabetta
AU - Chen, Chien-Ting
AU - Ciprini, Stefano
AU - Costa, Enrico
AU - De Rosa, Alessandra
AU - Del Monte, Ettore
AU - Di Lalla, Niccoló
AU - Di Marco, Alessandro
AU - Donnarumma, Immacolata
AU - Doroshenko, Victor
AU - Dovčiak, Michal
AU - Enoto, Teruaki
AU - Evangelista, Yuri
AU - Fabiani, Sergio
AU - Ferrazzoli, Riccardo
AU - Garcia, Javier A.
AU - Gunji, Shuichi
AU - Hayashida, Kiyoshi
AU - Heyl, Jeremy
AU - Iwakiri, Wataru
AU - Karas, Vladimir
AU - Kislat, Fabian
AU - Kitaguchi, Takao
AU - Kolodziejczak, Jeffery J.
AU - Krawczynski, Henric
AU - La Monaca, Fabio
AU - Latronico, Luca
AU - Maldera, Simone
AU - Manfreda, Alberto
AU - Marin, Frédéric
AU - Marinucci, Andrea
AU - Massaro, Francesco
AU - Matt, Giorgio
AU - Mitsuishi, Ikuyuki
AU - Muleri, Fabio
AU - Negro, Michela
AU - Ng, C. -Y.
AU - O'Dell, Stephen L.
AU - Omodei, Nicola
AU - Oppedisano, Chiara
AU - Papitto, Alessandro
AU - Pavlov, George G.
AU - Peirson, Abel Lawrence
AU - Pesce-Rollins, Melissa
AU - Petrucci, Pierre-Olivier
AU - Pilia, Maura
AU - Possenti, Andrea
AU - Ramsey, Brian D.
AU - Rankin, John
AU - Ratheesh, Ajay
AU - Roberts, Oliver J.
AU - Romani, Roger W.
AU - Sgró, Carmelo
AU - Slane, Patrick
AU - Soffitta, Paolo
AU - Spandre, Gloria
AU - Swartz, Douglas A.
AU - Tamagawa, Toru
AU - Tavecchio, Fabrizio
AU - Taverna, Roberto
AU - Tawara, Yuzuru
AU - Tennant, Allyn F.
AU - Thomas, Nicholas E.
AU - Tombesi, Francesco
AU - Trois, Alessio
AU - Tsygankov, Sergey S.
AU - Turolla, Roberto
AU - Vink, Jacco
AU - Weisskopf, Martin C.
AU - Wu, Kinwah
AU - Xie, Fei
AU - Zane, Silvia
PY - 2024/10/23
Y1 - 2024/10/23
N2 - 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.
AB - 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.
KW - Astrophysics - High Energy Astrophysical Phenomena
U2 - 10.48550/arXiv.2410.19983
DO - 10.48550/arXiv.2410.19983
M3 - Other contribution
ER -
