Gamma-ray emission from massive stars interacting with AGN jets
Dense populations of stars surround the nuclear regions of galaxies. In active galactic nuclei, these stars can interact with the relativistic jets launched by the supermasive black hole. In this work, we study the interaction of early-type stars with relativistic jets in active galactic nuclei. A b...
| Main Authors: | , , |
|---|---|
| Format: | Journal article |
| Published: |
Oxford University Press
2013
|
| _version_ | 1826264624387850240 |
|---|---|
| author | Araudo, A Bosch-Ramon, V Romero, G |
| author_facet | Araudo, A Bosch-Ramon, V Romero, G |
| author_sort | Araudo, A |
| collection | OXFORD |
| description | Dense populations of stars surround the nuclear regions of galaxies. In active galactic nuclei, these stars can interact with the relativistic jets launched by the supermasive black hole. In this work, we study the interaction of early-type stars with relativistic jets in active galactic nuclei. A bow-shaped double-shock structure is formed as a consequence of the interaction of the jet and the stellar wind of each early-type star. Particles can be accelerated up to relativistic energies in these shocks and emit high-energy radiation. We compute, considering different stellar densities of the galactic core, the gamma-ray emission produced by non-thermal radiative processes. This radiation may be significant in some cases, and its detection might yield valuable information on the properties of the stellar population in the galaxy nucleus, as well as on the relativistic jet. This emission is expected to be particularly relevant for nearby non-blazar sources. |
| first_indexed | 2024-03-06T20:10:49Z |
| format | Journal article |
| id | oxford-uuid:2a81a77d-97cb-4b2c-947b-f0c1608e16fe |
| institution | University of Oxford |
| last_indexed | 2024-03-06T20:10:49Z |
| publishDate | 2013 |
| publisher | Oxford University Press |
| record_format | dspace |
| spelling | oxford-uuid:2a81a77d-97cb-4b2c-947b-f0c1608e16fe2022-03-26T12:25:26ZGamma-ray emission from massive stars interacting with AGN jetsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2a81a77d-97cb-4b2c-947b-f0c1608e16feSymplectic Elements at OxfordOxford University Press2013Araudo, ABosch-Ramon, VRomero, GDense populations of stars surround the nuclear regions of galaxies. In active galactic nuclei, these stars can interact with the relativistic jets launched by the supermasive black hole. In this work, we study the interaction of early-type stars with relativistic jets in active galactic nuclei. A bow-shaped double-shock structure is formed as a consequence of the interaction of the jet and the stellar wind of each early-type star. Particles can be accelerated up to relativistic energies in these shocks and emit high-energy radiation. We compute, considering different stellar densities of the galactic core, the gamma-ray emission produced by non-thermal radiative processes. This radiation may be significant in some cases, and its detection might yield valuable information on the properties of the stellar population in the galaxy nucleus, as well as on the relativistic jet. This emission is expected to be particularly relevant for nearby non-blazar sources. |
| spellingShingle | Araudo, A Bosch-Ramon, V Romero, G Gamma-ray emission from massive stars interacting with AGN jets |
| title | Gamma-ray emission from massive stars interacting with AGN jets |
| title_full | Gamma-ray emission from massive stars interacting with AGN jets |
| title_fullStr | Gamma-ray emission from massive stars interacting with AGN jets |
| title_full_unstemmed | Gamma-ray emission from massive stars interacting with AGN jets |
| title_short | Gamma-ray emission from massive stars interacting with AGN jets |
| title_sort | gamma ray emission from massive stars interacting with agn jets |
| work_keys_str_mv | AT araudoa gammarayemissionfrommassivestarsinteractingwithagnjets AT boschramonv gammarayemissionfrommassivestarsinteractingwithagnjets AT romerog gammarayemissionfrommassivestarsinteractingwithagnjets |