Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Searching for a pair of accreting supermassive black holes in J1425+3231   In hierarchical structure formation scenarios, merging galaxies are expected
to be seen in different phases of their coalescence. Simulations suggest that
simultaneous activity of the supermassive black holes (SMBHs) in the centres of
the merging galaxies may be expected at kpc-scale separations. Currently, there
are no direct observational methods which allow the selection of a large number
of such dual active galactic nuclei (AGN) candidates. SDSS J142507.32+323137.4
was reported as a promising candidate source based on its optical spectrum.
Here we report on our sensitive e-MERLIN observations performed at $1.6$ and at
$5$ GHz, which show that the optical spectrum of the source can be more
straightforwardly explained with jet-cloud interactions instead of the dual AGN
scenario.

27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th