Query : 2012A&A...538A..97V

2012A&A...538A..97V - Astronomy and Astrophysics, volume 538A, 97-97 (2012/2-1)

An inhomogeneous lepto-hadronic model for the radiation of relativistic jets. Application to XTE J1118+480.


Abstract (from CDS):

Conceptually reconstructing the physical conditions in relativistic jets, given the observed electromagnetic spectrum, is a complex inverse problem. We aim to improve our understanding of the mechanisms operating in relativistic jets by modeling their broadband electromagnetic spectrum. We develop an inhomogeneous jet model where the injection of relativistic primary and secondary particles takes place in a spatially extended region. We calculate the contribution of all particles species to the jet emissivity by several radiative processes, and assess the effect of gamma-ray absorption in internal and external photon fields. A number of specific models with different parameters are computed to explore the possibilities of this scenario. We obtain a variety of spectral shapes depending on the model parameters, some of them predicting significant gamma-ray emission. The observed broadband spectrum of the low-mass microquasar XTE J1118+480 can be satisfactorily reproduced by the model. Our results indicate that outbursts similar to those displayed in the past by XTE J1118+480 might be detected with present-day gamma-ray instruments.

Abstract Copyright:

Journal keyword(s): gamma-rays: general - radiation mechanisms: non-thermal - X-rays: binaries - X-rays: individual: XTE J1118+480

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
1 V* KV UMa HXB 11 18 10.7922353051 +48 02 12.319175505     12.25     K5V-M1V 739 0
2 XSS J12270-4859 LXB 12 27 58.7475950389 -48 53 42.826034125           ~ 218 0
3 V* V821 Ara HXB 17 02 49.3810714542 -48 47 23.163091737 16.20 16.30 15.5     ~ 1844 0
4 HD 226868 HXB 19 58 21.6758193269 +35 12 05.782512305 9.38 9.72 8.91 8.42   O9.7Iabpvar 4022 0
5 V* V1521 Cyg HXB 20 32 25.78 +40 57 27.9           WN4/5-6/7 1820 2

    Equat.    Gal    SGal    Ecl

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