Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Radio and gamma-ray loud narrow-line Seyfert 1 galaxies in the spotlight   Narrow-line Seyfert 1 (NLS1) galaxies provide us with unique insights into
the drivers of AGN activity under extreme conditions. Given their low black
hole (BH) masses and near-Eddington accretion rates, they represent a class of
galaxies with rapidly growing supermassive BHs in the local universe. Here, we
present the results from our multi-frequency radio monitoring of a sample of
{\gamma}-ray loud NLS1 galaxies ({\gamma}NLS1s), including systems discovered
only recently, and featuring both the nearest and the most distant
{\gamma}NLS1s known to date. We also present high-resolution radio imaging of
1H 0323+342, which is remarkable for its spiral or ring-like host. Finally, we
present new radio data of the candidate {\gamma}-emitting NLS1 galaxy RX
J2314.9+2243, characterized by a very steep radio spectrum, unlike other
{\gamma}NLS1s.

22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
3
The categories of this paper are: physics