WASP-35b, WASP-48b, and HAT-P-30b/WASP-51b: Two New Planets and an Independent Discovery of a Hat Planet

We report the detection of WASP-35b, a planet transiting a metal-poor ([Fe/H] = -0.15) star in the Southern hemisphere, WASP-48b, an inflated planet which may have spun-up its slightly evolved host star of 1.75 R _sun in the Northern hemisphere, and the independent discovery of HAT-P-30b/WASP-51b, a new planet in the Northern hemisphere. Using WASP, RISE, Faulkes Telescope South, and TRAPPIST photometry, with CORALIE, SOPHIE, and NOT spectroscopy, we determine that WASP-35b has a mass of 0.72 ± 0.06 M_J and radius of 1.32 ± 0.05R_J , and orbits with a period of 3.16 days, WASP-48b has a mass of 0.98 ± 0.09 M_J , radius of 1.67 ± 0.10 R_J , and orbits in 2.14 days, while HAT-P-30b/WASP-51b, with an orbital period of 2.81 days, is found to have a mass of 0.76 ± 0.05 M_J and radius of 1.42 ± 0.03 R_J , agreeing with values of 0.71 ± 0.03 M_J and 1.34 ± 0.07 R_J reported for HAT-P-30b.