Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An ablating super-Earth in an eccentric binary from the Dispersed Matter
  Planet Project   Earth mass exoplanets are difficult to detect. The Dispersed Matter Planet
Project (DMPP) identifies stars which are likely to host the most detectable
low mass exoplanets. The star DMPP-3 (HD 42936) shows signs of circumstellar
absorption, indicative of mass loss from ablating planets. Here we report the
radial velocity (RV) discovery of a highly eccentric 507 d binary companion and
a hot super-Earth planet in a 6.67 d orbit around the primary star. DMPP-3A is
a solar type star while DMPP-3B is just massive enough to fuse hydrogen. The
binary, with semi-major axis 1.22 $\pm$ 0.02 AU, is considerably tighter than
others known to host planets orbiting only one of the component stars. The
configuration of the DMPP-3 planetary system is rare and indicates dynamical
interactions, though the evolutionary history is not entirely clear. DMPP-3Ab
is possibly the residual core of a giant planet precursor, consistent with the
inferred circumstellar gas shroud.

34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn