Standard

X-Ray Polarization Observations of BL Lacertae. / Middei, Riccardo; Liodakis, Ioannis; Perri, Matteo; Puccetti, Simonetta; Cavazzuti, Elisabetta; Di Gesu, Laura; Ehlert, Steven R.; Madejski, Grzegorz; Marscher, Alan P.; Marshall, Herman L.; Muleri, Fabio; Negro, Michela; Jorstad, Svetlana G.; Agís-González, Beatriz; Agudo, Iván; Bonnoli, Giacomo; Bernardos, Maria I.; Casanova, Víctor; García-Comas, Maya; Husillos, César; Marchini, Alessandro; Sota, Alfredo; Kouch, Pouya M.; Lindfors, Elina; Borman, George A.; Kopatskaya, Evgenia N.; Larionova, Elena G.; Morozova, Daria A.; Savchenko, Sergey S.; Vasilyev, Andrey A.; Zhovtan, Alexey V.; Casadio, Carolina; Escudero, Juan; Myserlis, Ioannis; Hales, Antonio; Kameno, Seiji; Kneissl, Ruediger; Messias, Hugo; Nagai, Hiroshi; Blinov, Dmitry; Bourbah, Ioakeim G.; Kiehlmann, Sebastian; Kontopodis, Evangelos; Mandarakas, Nikos; Romanopoulos, Stylianos; Skalidis, Raphael; Vervelaki, Anna; Masiero, Joseph R.; Mawet, Dimitri; Millar-Blanchaer, Maxwell A.; Panopoulou, Georgia V.; Tinyanont, Samaporn; Berdyugin, Andrei V.; Kagitani, Masato; Kravtsov, Vadim; Sakanoi, Takeshi; Imazawa, Ryo; Sasada, Mahito; Fukazawa, Yasushi; Kawabata, Koji S.; Uemura, Makoto; Mizuno, Tsunefumi; Nakaoka, Tatsuya; Akitaya, Hiroshi; Gurwell, Mark; Rao, Ramprasad; Lalla, Niccoló Di; Cibrario, Nicoló; Donnarumma, Immacolata; Kim, Dawoon E.; Omodei, Nicola; Pacciani, Luigi; Poutanen, Juri; Tavecchio, Fabrizio; Antonelli, Lucio A.; Bachetti, Matteo; Baldini, Luca; Baumgartner, Wayne H.; Bellazzini, Ronaldo; Bianchi, Stefano; Bongiorno, Stephen D.; Bonino, Raffaella; Brez, Alessandro; Bucciantini, Niccoló; Capitanio, Fiamma; Castellano, Simone; Ciprini, Stefano; Costa, Enrico; De Rosa, Alessandra; Del Monte, Ettore; Marco, Alessandro Di; 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; Kitaguchi, Takao; Kolodziejczak, Jeffery J.; Krawczynski, Henric; Monaca, Fabio La; Latronico, Luca; Maldera, Simone; Manfreda, Alberto; Marin, Frédéric; Marinucci, Andrea; Massaro, Francesco; Matt, Giorgio; Mitsuishi, Ikuyuki; Ng, C.-Y.; O’Dell, Stephen L.; Oppedisano, Chiara; Papitto, Alessandro; Pavlov, George G.; Peirson, Abel L.; Pesce-Rollins, Melissa; Petrucci, Pierre-Olivier; Pilia, Maura; Possenti, Andrea; Ramsey, Brian D.; Rankin, John; Ratheesh, Ajay; Romani, Roger W.; Sgró, Carmelo; Slane, Patrick; Soffitta, Paolo; Spandre, Gloria; Tamagawa, Toru; Taverna, Roberto; Tawara, Yuzuru; Tennant, Allyn F.; Thomas, Nicholas E.; Tombesi, Francesco; Trois, Alessio; Tsygankov, Sergey; Turolla, Roberto; Vink, Jacco; Weisskopf, Martin C.; Wu, Kinwah; Xie, Fei; Zane, Silvia.

в: Astrophysical Journal Letters, Том 942, № 1, L10, 01.2023.

Результаты исследований: Научные публикации в периодических изданияхстатьяРецензирование

Harvard

Middei, R, Liodakis, I, Perri, M, Puccetti, S, Cavazzuti, E, Di Gesu, L, Ehlert, SR, Madejski, G, Marscher, AP, Marshall, HL, Muleri, F, Negro, M, Jorstad, SG, Agís-González, B, Agudo, I, Bonnoli, G, Bernardos, MI, Casanova, V, García-Comas, M, Husillos, C, Marchini, A, Sota, A, Kouch, PM, Lindfors, E, Borman, GA, Kopatskaya, EN, Larionova, EG, Morozova, DA, Savchenko, SS, Vasilyev, AA, Zhovtan, AV, Casadio, C, Escudero, J, Myserlis, I, Hales, A, Kameno, S, Kneissl, R, Messias, H, Nagai, H, Blinov, D, Bourbah, IG, Kiehlmann, S, Kontopodis, E, Mandarakas, N, Romanopoulos, S, Skalidis, R, Vervelaki, A, Masiero, JR, Mawet, D, Millar-Blanchaer, MA, Panopoulou, GV, Tinyanont, S, Berdyugin, AV, Kagitani, M, Kravtsov, V, Sakanoi, T, Imazawa, R, Sasada, M, Fukazawa, Y, Kawabata, KS, Uemura, M, Mizuno, T, Nakaoka, T, Akitaya, H, Gurwell, M, Rao, R, Lalla, ND, Cibrario, N, Donnarumma, I, Kim, DE, Omodei, N, Pacciani, L, Poutanen, J, Tavecchio, F, Antonelli, LA, Bachetti, M, Baldini, L, Baumgartner, WH, Bellazzini, R, Bianchi, S, Bongiorno, SD, Bonino, R, Brez, A, Bucciantini, N, Capitanio, F, Castellano, S, Ciprini, S, Costa, E, De Rosa, A, Del Monte, E, Marco, AD, Doroshenko, V, Dovčiak, M, Enoto, T, Evangelista, Y, Fabiani, S, Ferrazzoli, R, Garcia, JA, Gunji, S, Hayashida, K, Heyl, J, Iwakiri, W, Karas, V, Kitaguchi, T, Kolodziejczak, JJ, Krawczynski, H, Monaca, FL, Latronico, L, Maldera, S, Manfreda, A, Marin, F, Marinucci, A, Massaro, F, Matt, G, Mitsuishi, I, Ng, C-Y, O’Dell, SL, Oppedisano, C, Papitto, A, Pavlov, GG, Peirson, AL, Pesce-Rollins, M, Petrucci, P-O, Pilia, M, Possenti, A, Ramsey, BD, Rankin, J, Ratheesh, A, Romani, RW, Sgró, C, Slane, P, Soffitta, P, Spandre, G, Tamagawa, T, Taverna, R, Tawara, Y, Tennant, AF, Thomas, NE, Tombesi, F, Trois, A, Tsygankov, S, Turolla, R, Vink, J, Weisskopf, MC, Wu, K, Xie, F & Zane, S 2023, 'X-Ray Polarization Observations of BL Lacertae', Astrophysical Journal Letters, Том. 942, № 1, L10. https://doi.org/10.3847/2041-8213/aca281

APA

Middei, R., Liodakis, I., Perri, M., Puccetti, S., Cavazzuti, E., Di Gesu, L., Ehlert, S. R., Madejski, G., Marscher, A. P., Marshall, H. L., Muleri, F., Negro, M., Jorstad, S. G., Agís-González, B., Agudo, I., Bonnoli, G., Bernardos, M. I., Casanova, V., García-Comas, M., ... Zane, S. (2023). X-Ray Polarization Observations of BL Lacertae. Astrophysical Journal Letters, 942(1), [L10]. https://doi.org/10.3847/2041-8213/aca281

Vancouver

Middei R, Liodakis I, Perri M, Puccetti S, Cavazzuti E, Di Gesu L и пр. X-Ray Polarization Observations of BL Lacertae. Astrophysical Journal Letters. 2023 Янв.;942(1). L10. https://doi.org/10.3847/2041-8213/aca281

Author

Middei, Riccardo ; Liodakis, Ioannis ; Perri, Matteo ; Puccetti, Simonetta ; Cavazzuti, Elisabetta ; Di Gesu, Laura ; Ehlert, Steven R. ; Madejski, Grzegorz ; Marscher, Alan P. ; Marshall, Herman L. ; Muleri, Fabio ; Negro, Michela ; Jorstad, Svetlana G. ; Agís-González, Beatriz ; Agudo, Iván ; Bonnoli, Giacomo ; Bernardos, Maria I. ; Casanova, Víctor ; García-Comas, Maya ; Husillos, César ; Marchini, Alessandro ; Sota, Alfredo ; Kouch, Pouya M. ; Lindfors, Elina ; Borman, George A. ; Kopatskaya, Evgenia N. ; Larionova, Elena G. ; Morozova, Daria A. ; Savchenko, Sergey S. ; Vasilyev, Andrey A. ; Zhovtan, Alexey V. ; Casadio, Carolina ; Escudero, Juan ; Myserlis, Ioannis ; Hales, Antonio ; Kameno, Seiji ; Kneissl, Ruediger ; Messias, Hugo ; Nagai, Hiroshi ; Blinov, Dmitry ; Bourbah, Ioakeim G. ; Kiehlmann, Sebastian ; Kontopodis, Evangelos ; Mandarakas, Nikos ; Romanopoulos, Stylianos ; Skalidis, Raphael ; Vervelaki, Anna ; Masiero, Joseph R. ; Mawet, Dimitri ; Millar-Blanchaer, Maxwell A. ; Panopoulou, Georgia V. ; Tinyanont, Samaporn ; Berdyugin, Andrei V. ; Kagitani, Masato ; Kravtsov, Vadim ; Sakanoi, Takeshi ; Imazawa, Ryo ; Sasada, Mahito ; Fukazawa, Yasushi ; Kawabata, Koji S. ; Uemura, Makoto ; Mizuno, Tsunefumi ; Nakaoka, Tatsuya ; Akitaya, Hiroshi ; Gurwell, Mark ; Rao, Ramprasad ; Lalla, Niccoló Di ; Cibrario, Nicoló ; Donnarumma, Immacolata ; Kim, Dawoon E. ; Omodei, Nicola ; Pacciani, Luigi ; Poutanen, Juri ; Tavecchio, Fabrizio ; Antonelli, Lucio A. ; Bachetti, Matteo ; Baldini, Luca ; Baumgartner, Wayne H. ; Bellazzini, Ronaldo ; Bianchi, Stefano ; Bongiorno, Stephen D. ; Bonino, Raffaella ; Brez, Alessandro ; Bucciantini, Niccoló ; Capitanio, Fiamma ; Castellano, Simone ; Ciprini, Stefano ; Costa, Enrico ; De Rosa, Alessandra ; Del Monte, Ettore ; Marco, Alessandro Di ; 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 ; Kitaguchi, Takao ; Kolodziejczak, Jeffery J. ; Krawczynski, Henric ; Monaca, Fabio La ; Latronico, Luca ; Maldera, Simone ; Manfreda, Alberto ; Marin, Frédéric ; Marinucci, Andrea ; Massaro, Francesco ; Matt, Giorgio ; Mitsuishi, Ikuyuki ; Ng, C.-Y. ; O’Dell, Stephen L. ; Oppedisano, Chiara ; Papitto, Alessandro ; Pavlov, George G. ; Peirson, Abel L. ; Pesce-Rollins, Melissa ; Petrucci, Pierre-Olivier ; Pilia, Maura ; Possenti, Andrea ; Ramsey, Brian D. ; Rankin, John ; Ratheesh, Ajay ; Romani, Roger W. ; Sgró, Carmelo ; Slane, Patrick ; Soffitta, Paolo ; Spandre, Gloria ; Tamagawa, Toru ; Taverna, Roberto ; Tawara, Yuzuru ; Tennant, Allyn F. ; Thomas, Nicholas E. ; Tombesi, Francesco ; Trois, Alessio ; Tsygankov, Sergey ; Turolla, Roberto ; Vink, Jacco ; Weisskopf, Martin C. ; Wu, Kinwah ; Xie, Fei ; Zane, Silvia. / X-Ray Polarization Observations of BL Lacertae. в: Astrophysical Journal Letters. 2023 ; Том 942, № 1.

BibTeX

@article{d259c2b8938d4bf58ba494bc20440315,
title = "X-Ray Polarization Observations of BL Lacertae",
abstract = "Blazars are a class of jet-dominated active galactic nuclei with a typical double-humped spectral energy distribution. It is of common consensus that the synchrotron emission is responsible for the low frequency peak, while the origin of the high frequency hump is still debated. The analysis of X-rays and their polarization can provide a valuable tool to understand the physical mechanisms responsible for the origin of high-energy emission of blazars. We report the first observations of BL Lacertae (BL Lac) performed with the Imaging X-ray Polarimetry Explorer, from which an upper limit to the polarization degree Π X < 12.6% was found in the 2–8 keV band. We contemporaneously measured the polarization in radio, infrared, and optical wavelengths. Our multiwavelength polarization analysis disfavors a significant contribution of proton-synchrotron radiation to the X-ray emission at these epochs. Instead, it supports a leptonic origin for the X-ray emission in BL Lac.",
author = "Riccardo Middei and Ioannis Liodakis and Matteo Perri and Simonetta Puccetti and Elisabetta Cavazzuti and {Di Gesu}, Laura and Ehlert, {Steven R.} and Grzegorz Madejski and Marscher, {Alan P.} and Marshall, {Herman L.} and Fabio Muleri and Michela Negro and Jorstad, {Svetlana G.} and Beatriz Ag{\'i}s-Gonz{\'a}lez and Iv{\'a}n Agudo and Giacomo Bonnoli and Bernardos, {Maria I.} and V{\'i}ctor Casanova and Maya Garc{\'i}a-Comas and C{\'e}sar Husillos and Alessandro Marchini and Alfredo Sota and Kouch, {Pouya M.} and Elina Lindfors and Borman, {George A.} and Kopatskaya, {Evgenia N.} and Larionova, {Elena G.} and Morozova, {Daria A.} and Savchenko, {Sergey S.} and Vasilyev, {Andrey A.} and Zhovtan, {Alexey V.} and Carolina Casadio and Juan Escudero and Ioannis Myserlis and Antonio Hales and Seiji Kameno and Ruediger Kneissl and Hugo Messias and Hiroshi Nagai and Dmitry Blinov and Bourbah, {Ioakeim G.} and Sebastian Kiehlmann and Evangelos Kontopodis and Nikos Mandarakas and Stylianos Romanopoulos and Raphael Skalidis and Anna Vervelaki and Masiero, {Joseph R.} and Dimitri Mawet and Millar-Blanchaer, {Maxwell A.} and Panopoulou, {Georgia V.} and Samaporn Tinyanont and Berdyugin, {Andrei V.} and Masato Kagitani and Vadim Kravtsov and Takeshi Sakanoi 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 Mark Gurwell and Ramprasad Rao and Lalla, {Niccol{\'o} Di} and Nicol{\'o} Cibrario and Immacolata Donnarumma and Kim, {Dawoon E.} and Nicola Omodei and Luigi Pacciani and Juri Poutanen and Fabrizio Tavecchio and Antonelli, {Lucio A.} 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 Stefano Ciprini and Enrico Costa and {De Rosa}, Alessandra and {Del Monte}, Ettore and Marco, {Alessandro Di} 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 Takao Kitaguchi and Kolodziejczak, {Jeffery J.} and Henric Krawczynski and Monaca, {Fabio La} 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 C.-Y. Ng and O{\textquoteright}Dell, {Stephen L.} and Chiara Oppedisano and Alessandro Papitto and Pavlov, {George G.} and Peirson, {Abel L.} 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 Romani, {Roger W.} and Carmelo Sgr{\'o} and Patrick Slane and Paolo Soffitta and Gloria Spandre and Toru Tamagawa and Roberto Taverna and Yuzuru Tawara and Tennant, {Allyn F.} and Thomas, {Nicholas E.} and Francesco Tombesi and Alessio Trois and Sergey Tsygankov and Roberto Turolla and Jacco Vink and Weisskopf, {Martin C.} and Kinwah Wu and Fei Xie and Silvia Zane",
year = "2023",
month = jan,
doi = "10.3847/2041-8213/aca281",
language = "English",
volume = "942",
journal = "Astrophysical Journal Letters",
issn = "2041-8205",
publisher = "IOP Publishing Ltd.",
number = "1",

}

RIS

TY - JOUR

T1 - X-Ray Polarization Observations of BL Lacertae

AU - Middei, Riccardo

AU - Liodakis, Ioannis

AU - Perri, Matteo

AU - Puccetti, Simonetta

AU - Cavazzuti, Elisabetta

AU - Di Gesu, Laura

AU - Ehlert, Steven R.

AU - Madejski, Grzegorz

AU - Marscher, Alan P.

AU - Marshall, Herman L.

AU - Muleri, Fabio

AU - Negro, Michela

AU - Jorstad, Svetlana G.

AU - Agís-González, Beatriz

AU - Agudo, Iván

AU - Bonnoli, Giacomo

AU - Bernardos, Maria I.

AU - Casanova, Víctor

AU - García-Comas, Maya

AU - Husillos, César

AU - Marchini, Alessandro

AU - Sota, Alfredo

AU - Kouch, Pouya M.

AU - Lindfors, Elina

AU - Borman, George A.

AU - Kopatskaya, Evgenia N.

AU - Larionova, Elena G.

AU - Morozova, Daria A.

AU - Savchenko, Sergey S.

AU - Vasilyev, Andrey A.

AU - Zhovtan, Alexey V.

AU - Casadio, Carolina

AU - Escudero, Juan

AU - Myserlis, Ioannis

AU - Hales, Antonio

AU - Kameno, Seiji

AU - Kneissl, Ruediger

AU - Messias, Hugo

AU - Nagai, Hiroshi

AU - Blinov, Dmitry

AU - Bourbah, Ioakeim G.

AU - Kiehlmann, Sebastian

AU - Kontopodis, Evangelos

AU - Mandarakas, Nikos

AU - Romanopoulos, Stylianos

AU - Skalidis, Raphael

AU - Vervelaki, Anna

AU - Masiero, Joseph R.

AU - Mawet, Dimitri

AU - Millar-Blanchaer, Maxwell A.

AU - Panopoulou, Georgia V.

AU - Tinyanont, Samaporn

AU - Berdyugin, Andrei V.

AU - Kagitani, Masato

AU - Kravtsov, Vadim

AU - Sakanoi, Takeshi

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 - Gurwell, Mark

AU - Rao, Ramprasad

AU - Lalla, Niccoló Di

AU - Cibrario, Nicoló

AU - Donnarumma, Immacolata

AU - Kim, Dawoon E.

AU - Omodei, Nicola

AU - Pacciani, Luigi

AU - Poutanen, Juri

AU - Tavecchio, Fabrizio

AU - Antonelli, Lucio A.

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 - Ciprini, Stefano

AU - Costa, Enrico

AU - De Rosa, Alessandra

AU - Del Monte, Ettore

AU - Marco, Alessandro Di

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 - Kitaguchi, Takao

AU - Kolodziejczak, Jeffery J.

AU - Krawczynski, Henric

AU - Monaca, Fabio La

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 - Ng, C.-Y.

AU - O’Dell, Stephen L.

AU - Oppedisano, Chiara

AU - Papitto, Alessandro

AU - Pavlov, George G.

AU - Peirson, Abel L.

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 - Romani, Roger W.

AU - Sgró, Carmelo

AU - Slane, Patrick

AU - Soffitta, Paolo

AU - Spandre, Gloria

AU - Tamagawa, Toru

AU - Taverna, Roberto

AU - Tawara, Yuzuru

AU - Tennant, Allyn F.

AU - Thomas, Nicholas E.

AU - Tombesi, Francesco

AU - Trois, Alessio

AU - Tsygankov, Sergey

AU - Turolla, Roberto

AU - Vink, Jacco

AU - Weisskopf, Martin C.

AU - Wu, Kinwah

AU - Xie, Fei

AU - Zane, Silvia

PY - 2023/1

Y1 - 2023/1

N2 - Blazars are a class of jet-dominated active galactic nuclei with a typical double-humped spectral energy distribution. It is of common consensus that the synchrotron emission is responsible for the low frequency peak, while the origin of the high frequency hump is still debated. The analysis of X-rays and their polarization can provide a valuable tool to understand the physical mechanisms responsible for the origin of high-energy emission of blazars. We report the first observations of BL Lacertae (BL Lac) performed with the Imaging X-ray Polarimetry Explorer, from which an upper limit to the polarization degree Π X < 12.6% was found in the 2–8 keV band. We contemporaneously measured the polarization in radio, infrared, and optical wavelengths. Our multiwavelength polarization analysis disfavors a significant contribution of proton-synchrotron radiation to the X-ray emission at these epochs. Instead, it supports a leptonic origin for the X-ray emission in BL Lac.

AB - Blazars are a class of jet-dominated active galactic nuclei with a typical double-humped spectral energy distribution. It is of common consensus that the synchrotron emission is responsible for the low frequency peak, while the origin of the high frequency hump is still debated. The analysis of X-rays and their polarization can provide a valuable tool to understand the physical mechanisms responsible for the origin of high-energy emission of blazars. We report the first observations of BL Lacertae (BL Lac) performed with the Imaging X-ray Polarimetry Explorer, from which an upper limit to the polarization degree Π X < 12.6% was found in the 2–8 keV band. We contemporaneously measured the polarization in radio, infrared, and optical wavelengths. Our multiwavelength polarization analysis disfavors a significant contribution of proton-synchrotron radiation to the X-ray emission at these epochs. Instead, it supports a leptonic origin for the X-ray emission in BL Lac.

UR - https://www.mendeley.com/catalogue/0a1aff94-822b-3b8e-9183-a89f85bdca5f/

U2 - 10.3847/2041-8213/aca281

DO - 10.3847/2041-8213/aca281

M3 - Article

VL - 942

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

SN - 2041-8205

IS - 1

M1 - L10

ER -

ID: 103181318