Journal article
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.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
Actions
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- Files:
-
-
(Preview, Accepted manuscript, pdf, 2.3MB, Terms of use)
-
- Publisher copy:
- 10.1126/science.adi2048
Authors
Contributors
+ Aharonian, F
- Role:
- Contributor
+ Benkhali, FA
- Role:
- Contributor
+ Aschersleben, J
- Role:
- Contributor
+ Ashkar, H
- Role:
- Contributor
+ Backes, M
- Role:
- Contributor
+ Science and Technology Facilities Council
More from this funder
- Grant:
- ST/X001598/1
- ST/M00757X/1
- ST/S002618/1
- ST/V001477/1
- ST/S002952/1
- ST/L006499/1
- ST/V006355/1
- ST/W508019/1
- Publisher:
- American Association for the Advancement of Science
- Journal:
- Science More from this journal
- Volume:
- 383
- Issue:
- 6681
- Pages:
- 402-406
- Place of publication:
- United States
- Publication date:
- 2024-01-25
- Acceptance date:
- 2023-12-04
- DOI:
- EISSN:
-
1095-9203
- ISSN:
-
0036-8075
- Pmid:
-
38271522
- Language:
-
English
- Keywords:
- Pubs id:
-
1607326
- Local pid:
-
pubs:1607326
- Deposit date:
-
2024-01-28
Terms of use
- Copyright holder:
- Aharonian et al
- Copyright date:
- 2024
- Rights statement:
- © 2024 the authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original US government works.
- Notes:
- This is the accepted manuscript version of the article. The final version is available online from American Association for the Advancement of Science at: https://dx.doi.org/10.1126/science.adi2048
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