Academic Journal
Modelling the multi-wavelength emission of flat-spectrum radio quasar 3C 279
| العنوان: | Modelling the multi-wavelength emission of flat-spectrum radio quasar 3C 279 |
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| المؤلفون: | Zheng, Y. G., Yang CY(杨初源) |
| بيانات النشر: | OXFORD UNIV PRESS |
| سنة النشر: | 2016 |
| المجموعة: | Yunnan Observatories: YNAO OpenIR (Chinese Academy of Sciences, CAS) / 中国科学院云南天文台机构知识库 |
| مصطلحات موضوعية: | Galaxies: Jets, Quasars: Individual: 3c 279, Radiation Mechanisms: Non-thermal, Gamma-rays: Galaxies, 天文学, 天文学::天体物理学, 天文学::天体物理学::高能天体物理学, 天文学::星系与宇宙学, 理学, 理学::天文学, Astronomy & Astrophysics, ACTIVE GALACTIC NUCLEI, PARSEC-SCALE JETS, INVERSE-COMPTON EMISSION, ENERGY GAMMA-RADIATION, BL LACERTAE OBJECTS, RELATIVISTIC JETS, BLAZAR JETS, PARTICLE-ACCELERATION, INTERNAL SHOCKS, RAY EMISSION, Science & Technology, Physical Sciences |
| الوصف: | We employ a length-dependent conical jet model for the jet structure and emission properties of flat-spectrum radio quasar 3C 279 in the steady state. In the model, ultra-relativistic leptons are injected at the base of the jet and propagate along the jet structure. Non-thermal photons are produced by both synchrotron emission and inverse Compton scattering off synchrotron photons and external soft photons at each segment of the jet. We derive the total energy spectra contribution through integrating every segment. We apply the model to the quasi-simultaneous multi-wavelength observed data of two quiescent epochs. Using the observed radio data of the source, we determine the length of the jet L similar to 100 pc and the magnetic field B-0 similar to 0.1-1 G at the base of the jet. Assuming a steady geometry of the jet structure and suitable physical parameters, we reproduce the multi-wavelength spectra during two quiescent observed epochs. Our results show that the initial gamma-ray emission site is similar to 0.5 pc from the black hole. |
| نوع الوثيقة: | article in journal/newspaper report |
| اللغة: | English |
| Relation: | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY; http://ir.ynao.ac.cn/handle/114a53/9578; http://mnras.oxfordjournals.org/content/457/4/3535 |
| DOI: | 10.1093/mnras/stw078 |
| الاتاحة: | http://ir.ynao.ac.cn/handle/114a53/9578 http://mnras.oxfordjournals.org/content/457/4/3535 https://doi.org/10.1093/mnras/stw078 |
| رقم الانضمام: | edsbas.236C98F0 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1093/mnras/stw078 |
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