A magnetic reconnection-heated corona in AGN and its spectra

Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

We investigate a corona coupled with an underlying disk through magnetic and radiation fields. By studying the interaction between the corona and disk, we determine the fraction of accretion energy dissipated in the corona for a given black-hole mass and accretion rate. This allows us to calculate the emergent spectra through Monte Carlo simulations. The spectra are then determined as functions of black-hole mass and accretion rate. We find two types of solutions corresponding to hard spectrum and soft spectrum. In the hard-spectrum solution, the accretion energy is dominantly dissipated in the corona. The hard X-ray spectral indices are the same for different accretion rate, i.e., α ˜ 1.1. In the soft-spectrum solution, the accretion energy is mainly dissipated in the disk. The spectra are dominated by the disk radiation peaked in UV and soft X-rays. For low-luminosity systems (L ⩽ 0.2LEdd), there exists only the solution of hard spectra; while for high-luminosity systems (L ⩾ 0.8LEdd), there exist both solutions of hard and soft spectra. The hard spectra are close to the observed spectra in Seyfert galaxies and radio-quiet QSOs.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

A magnetic reconnection-heated corona in AGN and its spectra does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A magnetic reconnection-heated corona in AGN and its spectra, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A magnetic reconnection-heated corona in AGN and its spectra will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1281334

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.