Query : 2002A&A...385.1089M

2002A&A...385.1089M - Astronomy and Astrophysics, volume 385, 1089-1094 (2002/4-3)

Theoretical thermal X-ray spectra of relativistic MHD jets.


Abstract (from CDS):

Highly relativistic jets are most probably driven by strong magnetic fields and launched from the accretion disk surrounding a central black hole. Applying the jet flow parameters (velocity, density, temperature) calculated from the magnetohydrodynamic (MHD) equations, we derive the thermal X-ray luminosity along the inner jet flow in the energy range 0.2-10.1keV. Here, we concentrate on the case of Galactic microquasars emitting highly relativistic jets. For a 5M central object and a jet mass flow rate of {dot}(M)j=10–8M/yr we obtain a jet X-ray luminosity LX≃1033erg/s. Emission lines of Fe XXV and Fe XXVI are clearly visible. Relativistic effects such as Doppler shift and boosting were considered for different inclinations of the jet axis. Due to the chosen geometry of the MHD jet the inner X-ray emitting part is not yet collimated. Therefore, depending on the viewing angle, the Doppler boosting does not play a major role in the total spectra.

Abstract Copyright:

Journal keyword(s): MHD - radiation mechanisms: thermal - X-rays: binaries - ISM: jets and outflows

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
1 V* KV UMa HXB 11 18 10.7930420496 +48 02 12.314730120     12.25     K5V-M1V 802 0
2 AX J1748.0-2829 LXB 17 48 05.060 -28 28 25.80     13.60     ~ 183 0
3 SS 433 HXB 19 11 49.5647697480 +04 58 57.827127648   16.3 13.0     A7Ib: 2088 4
4 Granat 1915+105 HXB 19 15 11.55576 +10 56 44.9052           ~ 2559 0

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