Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Predicting the incidence of planets and debris discs as a function of
  stellar mass   The mass of solids in a young circumstellar disc may be the key factor in its
efficiency in building planetesimals and planetary cores, and dust observed
around young T Tauri and Herbig Ae stars can be used as a proxy for this
initial solid content. The dust-mass distributions are taken from recent
millimetre-wavelength data and fitted using survival analysis to take into
account upper limits, and threshold disc-masses for building planets and belts
of comets are estimated. Amongst A-stars, 20% gas giant and 55% debris disc
systems are predicted, in good agreement with observations. For M-stars, the
predicted and observed planet-frequencies agree at ~2-3%, and this low
incidence is explained by a lack of massive discs. However, debris is predicted
around approx. 14% of M-stars, while only ~2% such systems have so far been
found. This suggests that deeper searches such as with Herschel and SCUBA-2 may
find a cold disc population previously missed around these low-luminosity
stars. Also, an estimate of the efficiency of building millimetre-detected dust
into planetary cores suggests that about a third of M-stars could host an
Earth-mass planet -- but as the dust is spread over large disc areas, such
planets may orbit far from the star.

27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
19
The categories of this paper are: eess
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
2
The categories of this paper are: math
4
The categories of this paper are: cond-mat
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th