Acceleration and transport of relativistic electrons in the jets of the microquasar SS 433

HESS Collaboration; F. Aharonian; F. Ait Benkhali; J. Aschersleben; H. Ashkar; M. Backes; V. Barbosa Martins; R. Batzofin; Y. Becherini; D. Berge; K. Bernlöhr; B. Bi; M. Böttcher; C. Boisson; J. Bolmont; M. de Bony de Lavergne; J. Borowska; M. Bouyahiaoui; M. Breuhaus; R. Brose; F. Brun; B. Bruno; T. Bulik; C. Burger-Scheidlin; S. Caroff; S. Casanova; R. Cecil; J. Celic; M. Cerruti; T. Chand; S. Chandra; J. Chibueze; O. Chibueze; G. Cotter; S. Dai; J. Damascene Mbarubucyeye; A. Djannati-Ataï; A. Dmytriiev; V. Doroshenko; K. Egberts; S. Einecke; J. -P. Ernenwein; M. Filipovic; G. Fontaine; M. Füßling; S. Funk; S. Gabici; S. Ghafourizadeh; H. Sol; M. Vecchi

doi:10.1126/science.adi2048

Acceleration and transport of relativistic electrons in the jets of the microquasar SS 433

HESS Collaboration, F. Aharonian, F. Ait Benkhali, J. Aschersleben, H. Ashkar, M. Backes, V. Barbosa Martins, R. Batzofin, Y. Becherini, D. Berge, K. Bernlöhr, B. Bi, M. Böttcher, C. Boisson, J. Bolmont, M. de Bony de Lavergne, J. Borowska, M. Bouyahiaoui, M. Breuhaus, R. BroseF. Brun, B. Bruno, T. Bulik, C. Burger-Scheidlin, S. Caroff, S. Casanova, R. Cecil, J. Celic, M. Cerruti, T. Chand, S. Chandra, J. Chibueze, O. Chibueze, G. Cotter, S. Dai, J. Damascene Mbarubucyeye, A. Djannati-Ataï, A. Dmytriiev, V. Doroshenko, K. Egberts, S. Einecke, J. -P. Ernenwein, M. Filipovic, G. Fontaine, M. Füßling, S. Funk, S. Gabici, S. Ghafourizadeh, H. Sol, M. Vecchi

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SS 433 is a microquasar, a stellar binary system that launches collimated relativistic jets. We observed SS 433 in gamma rays using the High Energy Stereoscopic System (H.E.S.S.) and found an energy-dependent shift in the apparent position of the gamma-ray emission from the parsec-scale jets. These observations trace the energetic electron population and indicate that inverse Compton scattering is the emission mechanism of the gamma rays. Our modeling of the energy-dependent gamma-ray morphology constrains the location of particle acceleration and requires an abrupt deceleration of the jet flow. We infer the presence of shocks on either side of the binary system, at distances of 25 to 30 parsecs, and that self-collimation of the precessing jets forms the shocks, which then efficiently accelerate electrons.

Originele taal-2	English
Pagina's (van-tot)	402-406
Aantal pagina's	5
Tijdschrift	Science
Volume	383
DOI's	https://doi.org/10.1126/science.adi2048
Status	Published - 26-jan.-2024

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Acceleration and transport of relativistic electrons in the jets of the microquasar SS 433
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HESS Collaboration, Aharonian, F., Ait Benkhali, F., Aschersleben, J., Ashkar, H., Backes, M., Barbosa Martins, V., Batzofin, R., Becherini, Y., Berge, D., Bernlöhr, K., Bi, B., Böttcher, M., Boisson, C., Bolmont, J., de Lavergne, M. D. B., Borowska, J., Bouyahiaoui, M., Breuhaus, M., ... Vecchi, M. (2024). Acceleration and transport of relativistic electrons in the jets of the microquasar SS 433. Science, 383, 402-406. https://doi.org/10.1126/science.adi2048

@article{9df1168e313f48e7b8bbac6a1981feed,

title = "Acceleration and transport of relativistic electrons in the jets of the microquasar SS 433",

abstract = "SS 433 is a microquasar, a stellar binary system that launches collimated relativistic jets. We observed SS 433 in gamma rays using the High Energy Stereoscopic System (H.E.S.S.) and found an energy-dependent shift in the apparent position of the gamma-ray emission from the parsec-scale jets. These observations trace the energetic electron population and indicate that inverse Compton scattering is the emission mechanism of the gamma rays. Our modeling of the energy-dependent gamma-ray morphology constrains the location of particle acceleration and requires an abrupt deceleration of the jet flow. We infer the presence of shocks on either side of the binary system, at distances of 25 to 30 parsecs, and that self-collimation of the precessing jets forms the shocks, which then efficiently accelerate electrons.",

keywords = "Astrophysics - High Energy Astrophysical Phenomena",

author = "\{HESS Collaboration\} and F. Aharonian and \{Ait Benkhali\}, F. and J. Aschersleben and H. Ashkar and M. Backes and \{Barbosa Martins\}, V. and R. Batzofin and Y. Becherini and D. Berge and K. Bernl{\"o}hr and B. Bi and M. B{\"o}ttcher and C. Boisson and J. Bolmont and \{de Lavergne\}, \{M. de Bony\} and J. Borowska and M. Bouyahiaoui and M. Breuhaus and R. Brose and F. Brun and B. Bruno and T. Bulik and C. Burger-Scheidlin and S. Caroff and S. Casanova and R. Cecil and J. Celic and M. Cerruti and T. Chand and S. Chandra and J. Chibueze and O. Chibueze and G. Cotter and S. Dai and Mbarubucyeye, \{J. Damascene\} and A. Djannati-Ata{\"i} and A. Dmytriiev and V. Doroshenko and K. Egberts and S. Einecke and Ernenwein, \{J. -P.\} and M. Filipovic and G. Fontaine and M. F{\"u}{\ss}ling and S. Funk and S. Gabici and S. Ghafourizadeh and H. Sol and M. Vecchi",

year = "2024",

month = jan,

day = "26",

doi = "10.1126/science.adi2048",

language = "English",

volume = "383",

pages = "402--406",

journal = "Science",

issn = "0036-8075",

publisher = "AMER ASSOC ADVANCEMENT SCIENCE",

}

HESS Collaboration, Aharonian, F, Ait Benkhali, F, Aschersleben, J, Ashkar, H, Backes, M, Barbosa Martins, V, Batzofin, R, Becherini, Y, Berge, D, Bernlöhr, K, Bi, B, Böttcher, M, Boisson, C, Bolmont, J, de Lavergne, MDB, Borowska, J, Bouyahiaoui, M, Breuhaus, M, Brose, R, Brun, F, Bruno, B, Bulik, T, Burger-Scheidlin, C, Caroff, S, Casanova, S, Cecil, R, Celic, J, Cerruti, M, Chand, T, Chandra, S, Chibueze, J, Chibueze, O, Cotter, G, Dai, S, Mbarubucyeye, JD, Djannati-Ataï, A, Dmytriiev, A, Doroshenko, V, Egberts, K, Einecke, S, Ernenwein, J-P, Filipovic, M, Fontaine, G, Füßling, M, Funk, S, Gabici, S, Ghafourizadeh, S, Sol, H & Vecchi, M 2024, 'Acceleration and transport of relativistic electrons in the jets of the microquasar SS 433', Science, vol. 383, blz. 402-406. https://doi.org/10.1126/science.adi2048

TY - JOUR

T1 - Acceleration and transport of relativistic electrons in the jets of the microquasar SS 433

AU - HESS Collaboration

AU - Aharonian, F.

AU - Ait Benkhali, F.

AU - Aschersleben, J.

AU - Ashkar, H.

AU - Backes, M.

AU - Barbosa Martins, V.

AU - Batzofin, R.

AU - Becherini, Y.

AU - Berge, D.

AU - Bernlöhr, K.

AU - Bi, B.

AU - Böttcher, M.

AU - Boisson, C.

AU - Bolmont, J.

AU - de Lavergne, M. de Bony

AU - Borowska, J.

AU - Bouyahiaoui, M.

AU - Breuhaus, M.

AU - Brose, R.

AU - Brun, F.

AU - Bruno, B.

AU - Bulik, T.

AU - Burger-Scheidlin, C.

AU - Caroff, S.

AU - Casanova, S.

AU - Cecil, R.

AU - Celic, J.

AU - Cerruti, M.

AU - Chand, T.

AU - Chandra, S.

AU - Chibueze, J.

AU - Chibueze, O.

AU - Cotter, G.

AU - Dai, S.

AU - Mbarubucyeye, J. Damascene

AU - Djannati-Ataï, A.

AU - Dmytriiev, A.

AU - Doroshenko, V.

AU - Egberts, K.

AU - Einecke, S.

AU - Ernenwein, J. -P.

AU - Filipovic, M.

AU - Fontaine, G.

AU - Füßling, M.

AU - Funk, S.

AU - Gabici, S.

AU - Ghafourizadeh, S.

AU - Sol, H.

AU - Vecchi, M.

PY - 2024/1/26

Y1 - 2024/1/26

N2 - SS 433 is a microquasar, a stellar binary system that launches collimated relativistic jets. We observed SS 433 in gamma rays using the High Energy Stereoscopic System (H.E.S.S.) and found an energy-dependent shift in the apparent position of the gamma-ray emission from the parsec-scale jets. These observations trace the energetic electron population and indicate that inverse Compton scattering is the emission mechanism of the gamma rays. Our modeling of the energy-dependent gamma-ray morphology constrains the location of particle acceleration and requires an abrupt deceleration of the jet flow. We infer the presence of shocks on either side of the binary system, at distances of 25 to 30 parsecs, and that self-collimation of the precessing jets forms the shocks, which then efficiently accelerate electrons.

AB - SS 433 is a microquasar, a stellar binary system that launches collimated relativistic jets. We observed SS 433 in gamma rays using the High Energy Stereoscopic System (H.E.S.S.) and found an energy-dependent shift in the apparent position of the gamma-ray emission from the parsec-scale jets. These observations trace the energetic electron population and indicate that inverse Compton scattering is the emission mechanism of the gamma rays. Our modeling of the energy-dependent gamma-ray morphology constrains the location of particle acceleration and requires an abrupt deceleration of the jet flow. We infer the presence of shocks on either side of the binary system, at distances of 25 to 30 parsecs, and that self-collimation of the precessing jets forms the shocks, which then efficiently accelerate electrons.

KW - Astrophysics - High Energy Astrophysical Phenomena

U2 - 10.1126/science.adi2048

DO - 10.1126/science.adi2048

M3 - Article

SN - 0036-8075

VL - 383

SP - 402

EP - 406

JO - Science

JF - Science

ER -

Acceleration and transport of relativistic electrons in the jets of the microquasar SS 433

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