Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Physics Input from Multiwavelength Observations of AGN   The current status of leptonic jet models for blazars is reviewed.
Differences between the quasar and BL-Lac subclasses of blazars may be
understood in terms of the dominance of different radiation mechanisms in the
gamma-ray regime. Spectral variability patterns of different blazar subclasses
appear to be significantly different and require different intrinsic mechanisms
causing gamma-ray flares. As examples, recent results of long-term
multiwavelength monitoring of PKS 0528+134, 3C 279, and Mrk 501 are interpreted
in the framework of leptonic jet models. Short-term variability patterns give
important additional clues about the source geometry and the relevant radiation
mechanisms in blazars. Challenges for future observational efforts are
discussed.

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The categories of this paper are: eess
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The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
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The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
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The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
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The categories of this paper are: quant-ph
3
The categories of this paper are: physics