Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spectral Tests of Models for Accretion Disks Around Black Holes   A critical review is presented of the current status of our understanding of
the the spectral output of thermally-radiating accretion disks around black
holes, with special attention to those around supermassive black holes in
active galactic nuclei. Uncertainties in disk physics (e.g. the nature of the
inter-ring stresses, the distribution of dissipation with altitude) contribute
to uncertainties in the output. So, too, do inadequacies in calculations (e.g.
incomplete treatment of non-LTE effects, neglect of transitions in elements
heavier than He, difficulty of coupling Comptonization to genuine transfer).
Existing models do not yet adequately explain the absence of Lyman edge
features, or the observed flux in the EUV.

2
The categories of this paper are: math
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
19
The categories of this paper are: eess