Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Constraining the masses of planets in protoplanetary discs from the
  presence or absence of vortices -- Comparison with ALMA observations   A massive planet in a protoplanetary disc will open a gap in the disc
material. A steep gap edge can be hydrodynamically unstable, which results in
the formation of vortices that can act as tracers for the presence of planets
in observational results. However, in a viscous disc, the potential formation
of these vortices is dependent on the timescale over which the massive planet
accretes mass and with a sufficiently long timescale it is possible for no
vortices to form. Hence, there is a connection between the presence of vortices
and the growth timescale of the planet and it may therefore be possible to
exclude a planetary interpretation of observed structure from the absence of
vortices. We have investigated the effect of the planet growth timescale on
vortex formation for a range of planet masses and viscosities and have found an
approximate relation between the planet mass, viscosity and planet growth
timescale for which vortices are not formed within the disc. We then interpret
these results in the light of recent observations. We have also found that
planets do not need to be close to a Jupiter mass to form vortices in the disc
if these discs have low viscosity, as these can be caused by planets as small
as a few Neptune masses.

20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
23
The categories of this paper are: solv-int
26
The categories of this paper are: bayes-an
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math
7
The categories of this paper are: hep-th