Standard
First characterization of the emission behavior of Mrk 421 from radio to very high-energy gamma rays with simultaneous X-ray polarization measurements. / Abe, S.; Abhir, J.; Acciari, V. A.; Agudo, I.; Aniello, T.; Ansoldi, S.; Antonelli, L. A.; Arbet-Engels, A.; Arcaro, C.; Artero, M.; Asano, K.; Babić, A.; Baquero, A.; Barres de Almeida, U.; Barrio, J. A.; Batković, I.; Baxter, J.; Becerra González, J.; Bednarek, W.; Bernardini, E.; Bernete, J.; Berti, A.; Besenrieder, J.; Bigongiari, C.; Biland, A.; Blanch, O.; Bonnoli, G.; Bošnjak, Ž.; Burelli, I.; Busetto, G.; Campoy-Ordaz, A.; Carosi, A.; Carosi, R.; Carretero-Castrillo, M.; Castro-Tirado, A. J.; Ceribella, G.; Cifuentes, A.; Cikota, S.; Colombo, E.; Contreras, J. L.; Cortina, J.; Covino, S.; D'Ammando, F.; D'Amico, G.; D'Elia, V.; Da Vela, P.; Dazzi, F.; De Angelis, A.; De Lotto, B.; de Menezes, R.; Del Popolo, A.; Delgado, J.; Delgado Mendez, C.; Di Pierro, F.; Di Venere, L.; Dominis Prester, D.; Donini, A.; Dorner, D.; Doro, M.; Elsaesser, D.; Emery, G.; Escudero, J.; Fariña, L.; Fattorini, A.; Foffano, L.; Font, L.; Fröse, S.; Fukami, S.; Fukazawa, Y.; García López, R. J.; Garczarczyk, M.; Gasparyan, S.; Gaug, M.; Giesbrecht Paiva, J. G.; Giglietto, N.; Giordano, F.; Gliwny, P.; Godinović, N.; Gradetzke, T.; Grau, R.; Green, D.; Green, J. G.; Günther, P.; Hadasch, D.; Hahn, A.; Hassan, T.; Heckmann, L.; Herrera, J.; Hrupec, D.; Hütten, M.; Imazawa, R.; Inada, T.; Ishio, K.; Jiménez Martínez, I.; Jormanainen, J.; Kerszberg, D.; Kluge, G. W.; Kobayashi, Y.; Kouch, P. M.; Kubo, H.; Kushida, J.; Láinez Lezáun, M.; Lamastra, A.; Leone, F.; Lindfors, E.; Linhoff, L.; Lombardi, S.; Longo, F.; López-Coto, R.; López-Moya, M.; López-Oramas, A.; Loporchio, S.; Lorini, A.; Machado de Oliveira Fraga, B.; Majumdar, P.; Makariev, M.; Maneva, G.; Mang, N.; Manganaro, M.; Mangano, S.; Mannheim, K.; Mariotti, M.; Martínez, M.; Martínez-Chicharro, M.; Mas-Aguilar, A.; Mazin, D.; Menchiari, S.; Mender, S.; Miceli, D.; Miener, T.; Miranda, J. M.; Mirzoyan, R.; Molero González, M.; Mondal, H. A.; Moralejo, A.; Morcuende, D.; Nakamori, T.; Nanci, C.; Nava, L.; Neustroev, V.; Nickel, L.; Nievas Rosillo, M.; Nigro, C.; Nikolić, L.; Nilsson, K.; Nishijima, K.; Njoh Ekoume, T.; Noda, K.; Nozaki, S.; Ohtani, Y.; Okumura, A.; Otero-Santos, J.; Paiano, S.; Palatiello, M.; Paneque, D.; Paoletti, R.; Paredes, J. M.; Pavlović, D.; Peresano, M.; Persic, M.; Pihet, M.; Pirola, G.; Podobnik, F.; Prada Moroni, P. G.; Prandini, E.; Principe, G.; Priyadarshi, C.; Rhode, W.; Ribó, M.; Rico, J.; Righi, C.; Sahakyan, N.; Saito, T.; Satalecka, K.; Saturni, F. G.; Schleicher, B.; Schmidt, K.; Schmuckermaier, F.; Schubert, J. L.; Schweizer, T.; Sciaccaluga, A.; Sitarek, J.; Sliusar, V.; Sobczynska, D.; Stamerra, A.; Strišković, J.; Strom, D.; Strzys, M.; Suda, Y.; Suutarinen, S.; Tajima, H.; Takahashi, M.; Takeishi, R.; Tavecchio, F.; Temnikov, P.; Terauchi, K.; Terzić, T.; Teshima, M.; Tosti, L.; Truzzi, S.; Tutone, A.; Ubach, S.; van Scherpenberg, J.; Vazquez Acosta, M.; Ventura, S.; Viale, I.; Vigorito, C. F.; Vitale, V.; Vovk, I.; Walter, R.; Will, M.; Wunderlich, C.; Yamamoto, T.; Liodakis, I.; Jorstad, S. G.; Di Gesu, L.; Donnarumma, I.; Marscher, A. P.; Middei, R.; Perri, M.; Puccetti, S.; Verrecchia, F.; Leto, C.; De La Calle Pérez, I.; Jiménez-Bailón, E.; Blinov, D.; Bourbah, I. G.; Kiehlmann, S.; Kontopodis, E.; Mandarakas, N.; Skalidis, R.; Vervelaki, A.; Aceituno, F. J.; Agís-González, B.; Sota, A.; Sasada, M.; Kawabata, K. S.; Uemura, M.; Mizuno, T.; Akitaya, H.; Casadio, C.; Myserlis, I.; Sievers, A.; Lähteenmäki, A.; Syrjärinne, I.; Tornikoski, M.; Salomé, Q.; Gurwell, M.; Keating, G. K.; Rao, R.
In:
Astronomy and Astrophysics, Vol. 684, 01.04.2024, p. A127.
Research output: Contribution to journal › Article › peer-review
Harvard
Abe, S, Abhir, J, Acciari, VA, Agudo, I, Aniello, T, Ansoldi, S, Antonelli, LA, Arbet-Engels, A, Arcaro, C, Artero, M, Asano, K, Babić, A, Baquero, A, Barres de Almeida, U, Barrio, JA, Batković, I, Baxter, J, Becerra González, J, Bednarek, W, Bernardini, E, Bernete, J, Berti, A, Besenrieder, J, Bigongiari, C, Biland, A, Blanch, O, Bonnoli, G, Bošnjak, Ž, Burelli, I, Busetto, G, Campoy-Ordaz, A, Carosi, A, Carosi, R, Carretero-Castrillo, M, Castro-Tirado, AJ, Ceribella, G, Cifuentes, A, Cikota, S, Colombo, E, Contreras, JL, Cortina, J, Covino, S, D'Ammando, F, D'Amico, G, D'Elia, V, Da Vela, P, Dazzi, F, De Angelis, A, De Lotto, B, de Menezes, R, Del Popolo, A, Delgado, J, Delgado Mendez, C, Di Pierro, F, Di Venere, L, Dominis Prester, D, Donini, A, Dorner, D, Doro, M, Elsaesser, D, Emery, G, Escudero, J, Fariña, L, Fattorini, A, Foffano, L, Font, L, Fröse, S, Fukami, S, Fukazawa, Y, García López, RJ, Garczarczyk, M, Gasparyan, S, Gaug, M, Giesbrecht Paiva, JG, Giglietto, N, Giordano, F, Gliwny, P, Godinović, N, Gradetzke, T, Grau, R, Green, D, Green, JG, Günther, P, Hadasch, D, Hahn, A, Hassan, T, Heckmann, L, Herrera, J, Hrupec, D, Hütten, M, Imazawa, R, Inada, T, Ishio, K, Jiménez Martínez, I, Jormanainen, J, Kerszberg, D, Kluge, GW, Kobayashi, Y, Kouch, PM, Kubo, H, Kushida, J, Láinez Lezáun, M, Lamastra, A, Leone, F, Lindfors, E, Linhoff, L, Lombardi, S, Longo, F, López-Coto, R, López-Moya, M, López-Oramas, A, Loporchio, S, Lorini, A, Machado de Oliveira Fraga, B, Majumdar, P, Makariev, M, Maneva, G, Mang, N, Manganaro, M, Mangano, S, Mannheim, K, Mariotti, M, Martínez, M, Martínez-Chicharro, M, Mas-Aguilar, A, Mazin, D, Menchiari, S, Mender, S, Miceli, D, Miener, T, Miranda, JM, Mirzoyan, R, Molero González, M, Mondal, HA, Moralejo, A, Morcuende, D, Nakamori, T, Nanci, C, Nava, L, Neustroev, V, Nickel, L, Nievas Rosillo, M, Nigro, C, Nikolić, L, Nilsson, K, Nishijima, K, Njoh Ekoume, T, Noda, K, Nozaki, S, Ohtani, Y, Okumura, A, Otero-Santos, J, Paiano, S, Palatiello, M, Paneque, D, Paoletti, R, Paredes, JM, Pavlović, D, Peresano, M, Persic, M, Pihet, M, Pirola, G, Podobnik, F, Prada Moroni, PG, Prandini, E, Principe, G, Priyadarshi, C, Rhode, W, Ribó, M, Rico, J, Righi, C, Sahakyan, N, Saito, T, Satalecka, K, Saturni, FG, Schleicher, B, Schmidt, K, Schmuckermaier, F, Schubert, JL, Schweizer, T, Sciaccaluga, A, Sitarek, J, Sliusar, V, Sobczynska, D, Stamerra, A, Strišković, J, Strom, D, Strzys, M, Suda, Y, Suutarinen, S, Tajima, H, Takahashi, M, Takeishi, R, Tavecchio, F, Temnikov, P, Terauchi, K, Terzić, T, Teshima, M, Tosti, L, Truzzi, S, Tutone, A, Ubach, S, van Scherpenberg, J, Vazquez Acosta, M, Ventura, S, Viale, I, Vigorito, CF, Vitale, V, Vovk, I, Walter, R, Will, M, Wunderlich, C, Yamamoto, T, Liodakis, I
, Jorstad, SG, Di Gesu, L, Donnarumma, I, Marscher, AP, Middei, R, Perri, M, Puccetti, S, Verrecchia, F, Leto, C, De La Calle Pérez, I, Jiménez-Bailón, E
, Blinov, D, Bourbah, IG, Kiehlmann, S, Kontopodis, E, Mandarakas, N, Skalidis, R, Vervelaki, A, Aceituno, FJ, Agís-González, B, Sota, A, Sasada, M, Kawabata, KS, Uemura, M, Mizuno, T, Akitaya, H, Casadio, C, Myserlis, I, Sievers, A, Lähteenmäki, A, Syrjärinne, I, Tornikoski, M, Salomé, Q, Gurwell, M, Keating, GK & Rao, R 2024, '
First characterization of the emission behavior of Mrk 421 from radio to very high-energy gamma rays with simultaneous X-ray polarization measurements',
Astronomy and Astrophysics, vol. 684, pp. A127.
https://doi.org/10.1051/0004-6361/202347988
APA
Abe, S., Abhir, J., Acciari, V. A., Agudo, I., Aniello, T., Ansoldi, S., Antonelli, L. A., Arbet-Engels, A., Arcaro, C., Artero, M., Asano, K., Babić, A., Baquero, A., Barres de Almeida, U., Barrio, J. A., Batković, I., Baxter, J., Becerra González, J., Bednarek, W., ... Rao, R. (2024).
First characterization of the emission behavior of Mrk 421 from radio to very high-energy gamma rays with simultaneous X-ray polarization measurements.
Astronomy and Astrophysics,
684, A127.
https://doi.org/10.1051/0004-6361/202347988
Vancouver
Author
Abe, S. ; Abhir, J. ; Acciari, V. A. ; Agudo, I. ; Aniello, T. ; Ansoldi, S. ; Antonelli, L. A. ; Arbet-Engels, A. ; Arcaro, C. ; Artero, M. ; Asano, K. ; Babić, A. ; Baquero, A. ; Barres de Almeida, U. ; Barrio, J. A. ; Batković, I. ; Baxter, J. ; Becerra González, J. ; Bednarek, W. ; Bernardini, E. ; Bernete, J. ; Berti, A. ; Besenrieder, J. ; Bigongiari, C. ; Biland, A. ; Blanch, O. ; Bonnoli, G. ; Bošnjak, Ž. ; Burelli, I. ; Busetto, G. ; Campoy-Ordaz, A. ; Carosi, A. ; Carosi, R. ; Carretero-Castrillo, M. ; Castro-Tirado, A. J. ; Ceribella, G. ; Cifuentes, A. ; Cikota, S. ; Colombo, E. ; Contreras, J. L. ; Cortina, J. ; Covino, S. ; D'Ammando, F. ; D'Amico, G. ; D'Elia, V. ; Da Vela, P. ; Dazzi, F. ; De Angelis, A. ; De Lotto, B. ; de Menezes, R. ; Del Popolo, A. ; Delgado, J. ; Delgado Mendez, C. ; Di Pierro, F. ; Di Venere, L. ; Dominis Prester, D. ; Donini, A. ; Dorner, D. ; Doro, M. ; Elsaesser, D. ; Emery, G. ; Escudero, J. ; Fariña, L. ; Fattorini, A. ; Foffano, L. ; Font, L. ; Fröse, S. ; Fukami, S. ; Fukazawa, Y. ; García López, R. J. ; Garczarczyk, M. ; Gasparyan, S. ; Gaug, M. ; Giesbrecht Paiva, J. G. ; Giglietto, N. ; Giordano, F. ; Gliwny, P. ; Godinović, N. ; Gradetzke, T. ; Grau, R. ; Green, D. ; Green, J. G. ; Günther, P. ; Hadasch, D. ; Hahn, A. ; Hassan, T. ; Heckmann, L. ; Herrera, J. ; Hrupec, D. ; Hütten, M. ; Imazawa, R. ; Inada, T. ; Ishio, K. ; Jiménez Martínez, I. ; Jormanainen, J. ; Kerszberg, D. ; Kluge, G. W. ; Kobayashi, Y. ; Kouch, P. M. ; Kubo, H. ; Kushida, J. ; Láinez Lezáun, M. ; Lamastra, A. ; Leone, F. ; Lindfors, E. ; Linhoff, L. ; Lombardi, S. ; Longo, F. ; López-Coto, R. ; López-Moya, M. ; López-Oramas, A. ; Loporchio, S. ; Lorini, A. ; Machado de Oliveira Fraga, B. ; Majumdar, P. ; Makariev, M. ; Maneva, G. ; Mang, N. ; Manganaro, M. ; Mangano, S. ; Mannheim, K. ; Mariotti, M. ; Martínez, M. ; Martínez-Chicharro, M. ; Mas-Aguilar, A. ; Mazin, D. ; Menchiari, S. ; Mender, S. ; Miceli, D. ; Miener, T. ; Miranda, J. M. ; Mirzoyan, R. ; Molero González, M. ; Mondal, H. A. ; Moralejo, A. ; Morcuende, D. ; Nakamori, T. ; Nanci, C. ; Nava, L. ; Neustroev, V. ; Nickel, L. ; Nievas Rosillo, M. ; Nigro, C. ; Nikolić, L. ; Nilsson, K. ; Nishijima, K. ; Njoh Ekoume, T. ; Noda, K. ; Nozaki, S. ; Ohtani, Y. ; Okumura, A. ; Otero-Santos, J. ; Paiano, S. ; Palatiello, M. ; Paneque, D. ; Paoletti, R. ; Paredes, J. M. ; Pavlović, D. ; Peresano, M. ; Persic, M. ; Pihet, M. ; Pirola, G. ; Podobnik, F. ; Prada Moroni, P. G. ; Prandini, E. ; Principe, G. ; Priyadarshi, C. ; Rhode, W. ; Ribó, M. ; Rico, J. ; Righi, C. ; Sahakyan, N. ; Saito, T. ; Satalecka, K. ; Saturni, F. G. ; Schleicher, B. ; Schmidt, K. ; Schmuckermaier, F. ; Schubert, J. L. ; Schweizer, T. ; Sciaccaluga, A. ; Sitarek, J. ; Sliusar, V. ; Sobczynska, D. ; Stamerra, A. ; Strišković, J. ; Strom, D. ; Strzys, M. ; Suda, Y. ; Suutarinen, S. ; Tajima, H. ; Takahashi, M. ; Takeishi, R. ; Tavecchio, F. ; Temnikov, P. ; Terauchi, K. ; Terzić, T. ; Teshima, M. ; Tosti, L. ; Truzzi, S. ; Tutone, A. ; Ubach, S. ; van Scherpenberg, J. ; Vazquez Acosta, M. ; Ventura, S. ; Viale, I. ; Vigorito, C. F. ; Vitale, V. ; Vovk, I. ; Walter, R. ; Will, M. ; Wunderlich, C. ; Yamamoto, T. ; Liodakis, I.
; Jorstad, S. G. ; Di Gesu, L. ; Donnarumma, I. ; Marscher, A. P. ; Middei, R. ; Perri, M. ; Puccetti, S. ; Verrecchia, F. ; Leto, C. ; De La Calle Pérez, I. ; Jiménez-Bailón, E.
; Blinov, D. ; Bourbah, I. G. ; Kiehlmann, S. ; Kontopodis, E. ; Mandarakas, N. ; Skalidis, R. ; Vervelaki, A. ; Aceituno, F. J. ; Agís-González, B. ; Sota, A. ; Sasada, M. ; Kawabata, K. S. ; Uemura, M. ; Mizuno, T. ; Akitaya, H. ; Casadio, C. ; Myserlis, I. ; Sievers, A. ; Lähteenmäki, A. ; Syrjärinne, I. ; Tornikoski, M. ; Salomé, Q. ; Gurwell, M. ; Keating, G. K. ; Rao, R. /
First characterization of the emission behavior of Mrk 421 from radio to very high-energy gamma rays with simultaneous X-ray polarization measurements. In:
Astronomy and Astrophysics. 2024 ; Vol. 684. pp. A127.
BibTeX
@article{8c8dad312bdd4a55bfc6b68c64c95152,
title = "First characterization of the emission behavior of Mrk 421 from radio to very high-energy gamma rays with simultaneous X-ray polarization measurements",
abstract = " Aims: We have performed the first broadband study of Mrk 421 from radio to TeV gamma rays with simultaneous measurements of the X-ray polarization from IXPE. Methods: The data were collected as part of an extensive multiwavelength campaign carried out between May and June 2022 using MAGIC, Fermi-LAT, NuSTAR, XMM-Newton, Swift, and several optical and radio telescopes to complement IXPE data. Results: During the IXPE exposures, the measured 0.2-1 TeV flux was close to the quiescent state and ranged from 25% to 50% of the Crab Nebula without intra-night variability. Throughout the campaign, the very high-energy (VHE) and X-ray emission are positively correlated at a 4σ significance level. The IXPE measurements reveal an X-ray polarization degree that is a factor of 2-5 higher than in the optical/radio bands; that implies an energy-stratified jet in which the VHE photons are emitted co-spatially with the X-rays, in the vicinity of a shock front. The June 2022 observations exhibit a rotation of the X-ray polarization angle. Despite no simultaneous VHE coverage being available during a large fraction of the swing, the Swift-XRT monitoring reveals an X-ray flux increase with a clear spectral hardening. This suggests that flares in high synchrotron peaked blazars can be accompanied by a polarization angle rotation, as observed in some flat spectrum radio quasars. Finally, during the polarization angle rotation, NuSTAR data reveal two contiguous spectral hysteresis loops in opposite directions (clockwise and counterclockwise), implying important changes in the particle acceleration efficiency on approximately hour timescales. All data shown in Figs. 1, 2, 5, 7, and 8 are available at the CDS via anonymous ftp to cdsarc.cds.unistra.fr (ftp://130.79.128.5) or via https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/684/A127",
keywords = "radiation mechanisms: non-thermal, galaxies: active, BL Lacertae objects: individual: mrk421, gamma rays: general, X-rays: galaxies, Astrophysics - High Energy Astrophysical Phenomena, BL Lacertae objects: individual: Mrk 421, X-rays: galaxies, galaxies: active, gamma rays: general, radiation mechanisms: non-thermal",
author = "S. Abe and J. Abhir and Acciari, {V. A.} and I. Agudo and T. Aniello and S. Ansoldi and Antonelli, {L. A.} and A. Arbet-Engels and C. Arcaro and M. Artero and K. Asano and A. Babi{\'c} and A. Baquero and {Barres de Almeida}, U. and Barrio, {J. A.} and I. Batkovi{\'c} and J. Baxter and {Becerra Gonz{\'a}lez}, J. and W. Bednarek and E. Bernardini and J. Bernete and A. Berti and J. Besenrieder and C. Bigongiari and A. Biland and O. Blanch and G. Bonnoli and {\v Z}. Bo{\v s}njak and I. Burelli and G. Busetto and A. Campoy-Ordaz and A. Carosi and R. Carosi and M. Carretero-Castrillo and Castro-Tirado, {A. J.} and G. Ceribella and A. Cifuentes and S. Cikota and E. Colombo and Contreras, {J. L.} and J. Cortina and S. Covino and F. D'Ammando and G. D'Amico and V. D'Elia and {Da Vela}, P. and F. Dazzi and {De Angelis}, A. and {De Lotto}, B. and {de Menezes}, R. and {Del Popolo}, A. and J. Delgado and {Delgado Mendez}, C. and {Di Pierro}, F. and {Di Venere}, L. and {Dominis Prester}, D. and A. Donini and D. Dorner and M. Doro and D. Elsaesser and G. Emery and J. Escudero and L. Fari{\~n}a and A. Fattorini and L. Foffano and L. Font and S. Fr{\"o}se and S. Fukami and Y. Fukazawa and {Garc{\'i}a L{\'o}pez}, {R. J.} and M. Garczarczyk and S. Gasparyan and M. Gaug and {Giesbrecht Paiva}, {J. G.} and N. Giglietto and F. Giordano and P. Gliwny and N. Godinovi{\'c} and T. Gradetzke and R. Grau and D. Green and Green, {J. G.} and P. G{\"u}nther and D. Hadasch and A. Hahn and T. Hassan and L. Heckmann and J. Herrera and D. Hrupec and M. H{\"u}tten and R. Imazawa and T. Inada and K. Ishio and {Jim{\'e}nez Mart{\'i}nez}, I. and J. Jormanainen and D. Kerszberg and Kluge, {G. W.} and Y. Kobayashi and Kouch, {P. M.} and H. Kubo and J. Kushida and {L{\'a}inez Lez{\'a}un}, M. and A. Lamastra and F. Leone and E. Lindfors and L. Linhoff and S. Lombardi and F. Longo and R. L{\'o}pez-Coto and M. L{\'o}pez-Moya and A. L{\'o}pez-Oramas and S. Loporchio and A. Lorini and {Machado de Oliveira Fraga}, B. and P. Majumdar and M. Makariev and G. Maneva and N. Mang and M. Manganaro and S. Mangano and K. Mannheim and M. Mariotti and M. Mart{\'i}nez and M. Mart{\'i}nez-Chicharro and A. Mas-Aguilar and D. Mazin and S. Menchiari and S. Mender and D. Miceli and T. Miener and Miranda, {J. M.} and R. Mirzoyan and {Molero Gonz{\'a}lez}, M. and Mondal, {H. A.} and A. Moralejo and D. Morcuende and T. Nakamori and C. Nanci and L. Nava and V. Neustroev and L. Nickel and {Nievas Rosillo}, M. and C. Nigro and L. Nikoli{\'c} and K. Nilsson and K. Nishijima and {Njoh Ekoume}, T. and K. Noda and S. Nozaki and Y. Ohtani and A. Okumura and J. Otero-Santos and S. Paiano and M. Palatiello and D. Paneque and R. Paoletti and Paredes, {J. M.} and D. Pavlovi{\'c} and M. Peresano and M. Persic and M. Pihet and G. Pirola and F. Podobnik and {Prada Moroni}, {P. G.} and E. Prandini and G. Principe and C. Priyadarshi and W. Rhode and M. Rib{\'o} and J. Rico and C. Righi and N. Sahakyan and T. Saito and K. Satalecka and Saturni, {F. G.} and B. Schleicher and K. Schmidt and F. Schmuckermaier and Schubert, {J. L.} and T. Schweizer and A. Sciaccaluga and J. Sitarek and V. Sliusar and D. Sobczynska and A. Stamerra and J. Stri{\v s}kovi{\'c} and D. Strom and M. Strzys and Y. Suda and S. Suutarinen and H. Tajima and M. Takahashi and R. Takeishi and F. Tavecchio and P. Temnikov and K. Terauchi and T. Terzi{\'c} and M. Teshima and L. Tosti and S. Truzzi and A. Tutone and S. Ubach and {van Scherpenberg}, J. and {Vazquez Acosta}, M. and S. Ventura and I. Viale and Vigorito, {C. F.} and V. Vitale and I. Vovk and R. Walter and M. Will and C. Wunderlich and T. Yamamoto and I. Liodakis and Jorstad, {S. G.} and {Di Gesu}, L. and I. Donnarumma and Marscher, {A. P.} and R. Middei and M. Perri and S. Puccetti and F. Verrecchia and C. Leto and {De La Calle P{\'e}rez}, I. and E. Jim{\'e}nez-Bail{\'o}n and D. Blinov and Bourbah, {I. G.} and S. Kiehlmann and E. Kontopodis and N. Mandarakas and R. Skalidis and A. Vervelaki and Aceituno, {F. J.} and B. Ag{\'i}s-Gonz{\'a}lez and A. Sota and M. Sasada and Kawabata, {K. S.} and M. Uemura and T. Mizuno and H. Akitaya and C. Casadio and I. Myserlis and A. Sievers and A. L{\"a}hteenm{\"a}ki and I. Syrj{\"a}rinne and M. Tornikoski and Q. Salom{\'e} and M. Gurwell and Keating, {G. K.} and R. Rao",
year = "2024",
month = apr,
day = "1",
doi = "10.1051/0004-6361/202347988",
language = "русский",
volume = "684",
pages = "A127",
journal = "ASTRONOMY & ASTROPHYSICS",
issn = "0004-6361",
publisher = "EDP Sciences",
}
RIS
TY - JOUR
T1 - First characterization of the emission behavior of Mrk 421 from radio to very high-energy gamma rays with simultaneous X-ray polarization measurements
AU - Abe, S.
AU - Abhir, J.
AU - Acciari, V. A.
AU - Agudo, I.
AU - Aniello, T.
AU - Ansoldi, S.
AU - Antonelli, L. A.
AU - Arbet-Engels, A.
AU - Arcaro, C.
AU - Artero, M.
AU - Asano, K.
AU - Babić, A.
AU - Baquero, A.
AU - Barres de Almeida, U.
AU - Barrio, J. A.
AU - Batković, I.
AU - Baxter, J.
AU - Becerra González, J.
AU - Bednarek, W.
AU - Bernardini, E.
AU - Bernete, J.
AU - Berti, A.
AU - Besenrieder, J.
AU - Bigongiari, C.
AU - Biland, A.
AU - Blanch, O.
AU - Bonnoli, G.
AU - Bošnjak, Ž.
AU - Burelli, I.
AU - Busetto, G.
AU - Campoy-Ordaz, A.
AU - Carosi, A.
AU - Carosi, R.
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PY - 2024/4/1
Y1 - 2024/4/1
N2 - Aims: We have performed the first broadband study of Mrk 421 from radio to TeV gamma rays with simultaneous measurements of the X-ray polarization from IXPE. Methods: The data were collected as part of an extensive multiwavelength campaign carried out between May and June 2022 using MAGIC, Fermi-LAT, NuSTAR, XMM-Newton, Swift, and several optical and radio telescopes to complement IXPE data. Results: During the IXPE exposures, the measured 0.2-1 TeV flux was close to the quiescent state and ranged from 25% to 50% of the Crab Nebula without intra-night variability. Throughout the campaign, the very high-energy (VHE) and X-ray emission are positively correlated at a 4σ significance level. The IXPE measurements reveal an X-ray polarization degree that is a factor of 2-5 higher than in the optical/radio bands; that implies an energy-stratified jet in which the VHE photons are emitted co-spatially with the X-rays, in the vicinity of a shock front. The June 2022 observations exhibit a rotation of the X-ray polarization angle. Despite no simultaneous VHE coverage being available during a large fraction of the swing, the Swift-XRT monitoring reveals an X-ray flux increase with a clear spectral hardening. This suggests that flares in high synchrotron peaked blazars can be accompanied by a polarization angle rotation, as observed in some flat spectrum radio quasars. Finally, during the polarization angle rotation, NuSTAR data reveal two contiguous spectral hysteresis loops in opposite directions (clockwise and counterclockwise), implying important changes in the particle acceleration efficiency on approximately hour timescales. All data shown in Figs. 1, 2, 5, 7, and 8 are available at the CDS via anonymous ftp to cdsarc.cds.unistra.fr (ftp://130.79.128.5) or via https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/684/A127
AB - Aims: We have performed the first broadband study of Mrk 421 from radio to TeV gamma rays with simultaneous measurements of the X-ray polarization from IXPE. Methods: The data were collected as part of an extensive multiwavelength campaign carried out between May and June 2022 using MAGIC, Fermi-LAT, NuSTAR, XMM-Newton, Swift, and several optical and radio telescopes to complement IXPE data. Results: During the IXPE exposures, the measured 0.2-1 TeV flux was close to the quiescent state and ranged from 25% to 50% of the Crab Nebula without intra-night variability. Throughout the campaign, the very high-energy (VHE) and X-ray emission are positively correlated at a 4σ significance level. The IXPE measurements reveal an X-ray polarization degree that is a factor of 2-5 higher than in the optical/radio bands; that implies an energy-stratified jet in which the VHE photons are emitted co-spatially with the X-rays, in the vicinity of a shock front. The June 2022 observations exhibit a rotation of the X-ray polarization angle. Despite no simultaneous VHE coverage being available during a large fraction of the swing, the Swift-XRT monitoring reveals an X-ray flux increase with a clear spectral hardening. This suggests that flares in high synchrotron peaked blazars can be accompanied by a polarization angle rotation, as observed in some flat spectrum radio quasars. Finally, during the polarization angle rotation, NuSTAR data reveal two contiguous spectral hysteresis loops in opposite directions (clockwise and counterclockwise), implying important changes in the particle acceleration efficiency on approximately hour timescales. All data shown in Figs. 1, 2, 5, 7, and 8 are available at the CDS via anonymous ftp to cdsarc.cds.unistra.fr (ftp://130.79.128.5) or via https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/684/A127
KW - radiation mechanisms: non-thermal
KW - galaxies: active
KW - BL Lacertae objects: individual: mrk421
KW - gamma rays: general
KW - X-rays: galaxies
KW - Astrophysics - High Energy Astrophysical Phenomena
KW - BL Lacertae objects: individual: Mrk 421
KW - X-rays: galaxies
KW - galaxies: active
KW - gamma rays: general
KW - radiation mechanisms: non-thermal
UR - https://www.mendeley.com/catalogue/071610b4-a080-3b9a-807b-fd581e171f67/
U2 - 10.1051/0004-6361/202347988
DO - 10.1051/0004-6361/202347988
M3 - статья
VL - 684
SP - A127
JO - ASTRONOMY & ASTROPHYSICS
JF - ASTRONOMY & ASTROPHYSICS
SN - 0004-6361
ER -