Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Evaluating the jet/accretion coupling of Aql X-1: probing the
  contribution of accretion flow spectral components   The coupling between radio and X-ray luminosity is an important diagnostic
tool to study the connection between the accretion inflow and jet outflow for
low-mass X-ray binaries (LMXBs). When comparing NS- and BH-LMXBs, we find that
the radio/X-ray correlation for individual NS-LMXBs is scattered, whereas for
individual BH-LMXBs a more consistent correlation is generally found.
Furthermore, we observe jet quenching for both types of LMXBs, but it is
unclear what exactly causes this, and if jets in NS-LMXBs quench as strongly as
those in BH-LMXBs. While additional soft X-ray spectral components can be
present for NS-LMXBs due to the presence of the neutron star's surface,
disentangling the individual X-ray spectral components has thus far not been
considered when studying the radio/X-ray coupling. Here we present eleven
epochs of Swift/XRT observations matched with quasi-simultaneous archival radio
observations of the 2009 November outburst of Aql X-1. We decompose the thermal
and Comptonised spectral components in the Swift/XRT spectra, with the aim of
studying whether the presence of additional thermal emission affects the
coupling of the radio/X-ray luminosity. We find that there is no evidence of a
significant thermal contribution in Swift/XRT spectra that could cause scatter
in the radio/X-ray coupling. However, a noteworthy finding is that the X-ray
observation with the strongest statistically significant thermal component
occurs around the same epoch as a bright radio detection. Follow-up research
using more sensitive X-ray observations combined with densely sampled
near-simultaneous radio observations is required to explore the radio/X-ray
coupling for NS-LMXBs in more detail.

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The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
2
The categories of this paper are: math
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
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The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys