WASP-35b, WASP-48b, and HAT-P-30b/WASP-51b: two new planets and an independent discovery of a HAT planet

Enoch, B.; Anderson, D. R.; Barros, S. C. C.; Brown, D. J. A.; Cameron, A. Collier; Faedi, F.; Gillon, M.; Hébrard, G.; Lister, T. A.; Queloz, D.; Santerne, A.; Smalley, B.; Street, R. A.; Triaud, A. H. M. J.; West, R. G.; Bouchy, F.; Bento, J.; Butters, O.; Fossati, L.; Haswell, C.A.; Hellier, C.; Holmes, S.; Jehen, E.; Lendl, M.; Maxted, P. F. L.; McCormac, J.; Miller, G. R. M.; Moulds, V.; Moutou, C.; Norton, A. J.; Parley, N.; Pepe, F.; Pollacco, D.; Segransan, D.; Simpson, E.; Skillen, I.; Smith, A. M. S.; Udry, S. and Wheatley, P. J. (2011). WASP-35b, WASP-48b, and HAT-P-30b/WASP-51b: two new planets and an independent discovery of a HAT planet. Astronomical Journal, 142(3), article no. 86.

DOI: https://doi.org/10.1088/0004-6256/142/3/86

Abstract

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 RJ reported for HAT-P-30b.

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