the disc. We compare the dynamical structure of the disc in two different solutions (with and without resistivity parameter). We show that only the radial infall velocity and the surface density could changed by resistivity parameter obviously. Increasing the effect of wind increases the disc’s temperature and luminosity of the disc. The effect of magnetic field is similar to the effect of wind in the disc’s temperature and luminosity of the disc, but the influence of resistivity on the observational properties is not evident.'
author:
- Maryam Ghasemnezhad
- Shahram Abbassi
title: The influence of outflow and global magnetic field on the structure and spectrum of resistive CDAFs
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INTRODUCTION
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Black hole accretion discs provide the most powerful energy production mechanism in the universe. It is well accepted that many astrophysical objects are powered by black hole accretion. The standard geometrically thin, optically thick accretion disc model can be successfully explain many observational features of X-ray binaries, but it is unable to explain observations of low-luminosity X-ray binaries and AGNs accretion discs. A particular example of such low luminous sources is our galactic center, Sagittarius, with host a $2\times 10^6$ solar mass black hole with luminosity well below the 