WASP-35b, WASP-48b, AND HAT-P-30b/WASP-51b: TWO NEW PLANETS AND AN INDEPENDENT DISCOVERY OF A HAT PLANET

Abstract

We report the detection of WASP-35b, a planet transiting a metal-poor ([Fe/H]\n= -0.15) star in the Southern hemisphere, WASP-48b, an inflated planet which\nmay have spun-up its slightly evolved host star of 1.75 R_sun in the Northern\nhemisphere, and the independent discovery of HAT-P-30b / WASP-51b, a new planet\nin the Northern hemisphere. Using WASP, RISE, FTS and TRAPPIST photometry, with\nCORALIE, SOPHIE and NOT spectroscopy, we determine that WASP-35b has a mass of\n0.72 +/- 0.06 M_J and radius of 1.32 +/- 0.03 R_J, and orbits with a period of\n3.16 days, WASP-48b has a mass of 0.98 +/- 0.09 M_J, radius of 1.67 +/- 0.08\nR_J and orbits in 2.14 days, while WASP-51b, with an orbital period of 2.81\ndays, is found to have a mass of 0.76 +/- 0.05 M_J and radius of 1.42 +/- 0.04\nR_J, agreeing with values of 0.71 +/- 0.03 M_J and 1.34 +/- 0.07 R_J reported\nfor HAT-P-30b.\n