Hostname: page-component-8448b6f56d-mp689 Total loading time: 0 Render date: 2024-04-16T21:52:52.849Z Has data issue: false hasContentIssue false
  • English
  • Français

On the reprocessing of gamma-rays produced by jets

Published online by Cambridge University Press:  24 February 2011

M. Orellana ,
L. J. Pellizza  and
G. E. Romero
M. Orellana
Affiliation:
Facultad de Cs. Astronómicas y Geofísicas - Universidad Nacional de La Plata, Argentina Departamento de Física y Astronomía, Universidad de Valparaíso, Chile email: morellana@fcaglp.unlp.edu.ar
L. J. Pellizza
Affiliation:
Instituto de Astronomía y Física del Espacio, UBA - CONICET, Argentina email: pellizza@iafe.uba.ar
G. E. Romero
Affiliation:
Facultad de Cs. Astronómicas y Geofísicas - Universidad Nacional de La Plata, Argentina Instituto Argentino de Radioastronomía (IAR), CCT La Plata - CONICET, Argentina email: romero@iar.unlp.edu.ar
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Systems of two very different sizescales are known to produce very high-energy (VHE) radiation in their jets: AGNs and microquasars. The produced VHE photons (Eγ ~ 1 TeV) can be absorbed by the intense environmental soft photon fields, coming from the companion star (in high mass binaries) or from the accreting material (disk+corona in AGNs), as these are the dominant sources at energies around ~(mec2)2/Eγ. Energetic pairs are created by the photon-photon annihilation, and, depending on how efficient are the competing cooling channels, the absorption can lead to a reprocessing by Inverse Compton pair-cascade development. A self-consistent modeling of these systems as gamma-ray sources should then include, along with the emission and absorption processes, a thorough treatment of the pair cascades. We discuss here on this issue, focusing on our (preliminary) results of numerical simulations devoted to a study case similar to the high-mass microquasar candidate LS 5039.

Keywords

radiation mechanisms: nonthermalgamma rays: theory
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S275: Jets at all Scales , September 2010 , pp. 98 - 99
Copyright
Copyright © International Astronomical Union 2011

References

Aharonian, F. A. & Plyasheshnikov, A. V. 2003, Astropart. Phys. 19, 525CrossRefGoogle Scholar
Bednarek, W. 1997, A&A 322, 523Google Scholar
Bosch-Ramon, V., Romero, G. E., & Paredes, J. M. 2006, A&A 447, 26Google Scholar
Cerutti, B. et al. 2010, A&A, in press [arXiv:1006.2683]Google Scholar
Gabici, S. & Aharonian, F. A. 2007, Ap&SS 309, 465Google Scholar
Orellana, M., Bordas, P., Bosch-Ramon, V., Romero, G. E., & Paredes, J. M. 2007, A&A 476, 9Google Scholar
Protheroe, R. J. 1986, MNRAS 221, 769CrossRefGoogle Scholar
Pellizza, L. J., Orellana, M., & Romero, G. E. 2010, IJMPD, Vol. 19, 671–676CrossRefGoogle Scholar