We report the discovery of four transiting giant planets around K dwarfs .
The planets HATS-47b , HATS-48Ab , HATS-49b , and HATS-72b have masses of 0.369 _ { -0.021 } ^ { +0.031 } M _ { J } , 0.243 _ { -0.030 } ^ { +0.022 } M _ { J } , 0.353 _ { -0.027 } ^ { +0.038 } M _ { J } and 0.1254 \pm 0.0039 M _ { J } , respectively , and radii of 1.117 \pm 0.014 R _ { J } , 0.800 \pm 0.015 R _ { J } , 0.765 \pm 0.013 R _ { J } , and 0.7224 \pm 0.0032 R _ { J } , respectively .
The planets orbit close to their host stars with orbital periods of 3.9228 d , 3.1317 d , 4.1480 d and 7.3279 d , respectively .
The hosts are main sequence K dwarfs with masses of 0.674 _ { -0.012 } ^ { +0.016 } M _ { \sun } , 0.7279 \pm 0.0066 M _ { \sun } , 0.7133 \pm 0.0075 M _ { \sun } , and 0.7311 \pm 0.0028 , and with V -band magnitudes of V = 14.829 \pm 0.010 , 14.35 \pm 0.11 , 14.998 \pm 0.040 and 12.469 \pm 0.010 .
The Super-Neptune HATS-72b ( a.k.a .
WASP-191b and TOI 294.01 ) was independently identified as a transiting planet candidate by the HATSouth , WASP and TESS surveys , and we present a combined analysis of all of the data gathered by each of these projects ( and their follow-up programs ) .
An exceptionally precise mass is measured for HATS-72b thanks to high-precision radial velocity ( RV ) measurements obtained with VLT/ESPRESSO , FEROS , HARPS and Magellan/PFS .
We also incorporate TESS observations of the warm Saturn-hosting systems HATS-47 ( a.k.a .
TOI 1073.01 ) , HATS-48A and HATS-49 .
HATS-47 was independently identified as a candidate by the TESS team , while the other two systems were not previously identified from the TESS data .
The RV orbital variations are measured for these systems using Magellan/PFS .
HATS-48A has a resolved 5 \farcs 4 neighbor in Gaia DR2 , which is a common-proper-motion binary star companion to HATS-48A with a mass of 0.22 M _ { \sun } and a current projected physical separation of \sim 1,400 au .