Will Simbol-X unravel the high energy emission of the LLAGN M81? .
Abstract
Accretion onto LLAGNs is still poorly understood. In this work we focus on the LINER galaxy M81, for which several different physical models (from standard accretion disks to advection dominated flows) have been invoked to explain its X-ray spectrum. The long (132 ks) XMM-Newton/pn observation of M81 has been analysed to test all the models proposed in literature. The same models are then used to perform simulations in order to evaluate Simbol-X capabilities in disentangling the three different physical scenarios of a standard accretion disk, a photoionized model and an ADAF model with a truncated disk, through the characterisation of the Fe K complex and the continuum features (e.g. reflection bump, etc). We find that Simbol-X will be able to distinguish between the three different solutions.
- Publication:
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Memorie della Societa Astronomica Italiana
- Pub Date:
- 2008
- Bibcode:
- 2008MmSAI..79..244D
- Keywords:
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- accretion;
- galaxies: active;
- galaxies: individual (M81);
- galaxies: X-rays