Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: HAT-P-32b and HAT-P-33b: Two Highly Inflated Hot Jupiters Transiting
  High-Jitter Stars   We report the discovery of two exoplanets transiting high-jitter stars.
HAT-P-32b orbits the bright V=11.289 star GSC 3281-00800, with a period P =
2.150008 d. The stellar and planetary masses and radii depend on the
eccentricity of the system, which is poorly constrained due to the high
velocity jitter (~80m/s). Assuming a circular orbit, the star has a mass of
1.16+-0.04 M_sun, and radius of 1.22+-0.02 R_sun, while the planet has a mass
of 0.860+-0.164 MJ, and a radius of 1.789+-0.025 RJ. When the eccentricity is
allowed to vary, the best-fit model results in a planet which is close to
filling its Roche Lobe. Including the constraint that the planet cannot exceed
its Roche Lobe results in the following best-fit parameters: e = 0.163+-0.061,
Mp = 0.94+-0.17 MJ, Rp = 2.04+-0.10 RJ, Ms = 1.18+0.04-0.07 M_sun and Rs =
1.39+-0.07 R_sun. The second planet, HAT-P-33b, orbits the bright V=11.188 star
GSC 2461-00988, with a period P = 3.474474 d. As for HAT-P-32, the stellar and
planetary masses and radii of HAT-P-33 depend on the eccentricity, which is
poorly constrained due to the high jitter (~50m/s). In this case spectral line
bisector spans are significantly anti-correlated with the radial velocity
residuals, and we use this correlation to reduce the residual rms to ~35m/s. We
find the star has a mass of either 1.38+-0.04 M_sun or 1.40+-0.10 M_sun, and a
radius of either 1.64+-0.03 R_sun or 1.78+-0.28 R_sun, while the planet has a
mass of either 0.762+-0.101 MJ or 0.763+-0.117 MJ, and a radius of either
1.686+-0.045 RJ or 1.827+-0.290 RJ, for an assumed circular orbit or for the
best-fit eccentric orbit respectively. Due to the large bisector span
variations exhibited by both stars we rely on detailed modeling of the
photometric light curves to rule out blend scenarios. Both planets are among
the largest radii transiting planets discovered to date.

14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
19
The categories of this paper are: eess
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int