WASP-52b, WASP-58b, WASP-59b, and WASP-60b: Four new transiting close-in giant planets

被引：107

作者：

Hebrard, G. ^{[1
,2
]}

Cameron, A. Collier ^{[3
]}

Brown, D. J. A. ^{[3
]}

Diaz, R. F. ^{[1
,2
,4
]}

Faedi, F. ^{[13
]}

Smalley, B. ^{[5
]}

Anderson, D. R. ^{[5
]}

Armstrong, D. ^{[13
]}

Barros, S. C. C. ^{[4
]}

Bento, J. ^{[12
]}

Bouchy, F. ^{[1
,2
]}

Doyle, A. P. ^{[5
]}

Enoch, B. ^{[3
]}

Chew, Y. Gomez Maqueo ^{[13
,14
]}

Hebrard, E. M. ^{[2
]}

Hellier, C. ^{[5
]}

Lendl, M. ^{[6
]}

Lister, T. A. ^{[11
]}

Maxted, P. F. L. ^{[5
]}

McCormac, J. ^{[8
]}

Moutou, C. ^{[4
]}

Pollacco, D. ^{[13
]}

Queloz, D. ^{[6
]}

Santerne, A. ^{[2
,4
]}

Skillen, I. ^{[8
]}

Southworth, J. ^{[5
]}

Tregloan-Reed, J. ^{[5
]}

Triaud, A. H. M. J. ^{[6
]}

Udry, S. ^{[6
]}

Vanhuysse, M. ^{[10
]}

Watson, C. A. ^{[7
]}

West, R. G. ^{[9
]}

Wheatley, P. J. ^{[13
]}

机构：

[1] Univ Paris 06, Inst Astrophys Paris, CNRS, UMR 7095, F-75014 Paris, France

[2] Observ Haute Provence, CNRS, OAMP, F-04870 St Michel lObservatoire, France

[3] Univ St Andrews, Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland

[4] Univ Aix Marseille 1, CNRS, Lab Astrophys Marseille, UMR 6110, F-13388 Marseille 13, France

[5] Keele Univ, Astrophys Grp, Keele ST5 5BG, Staffs, England

[6] Univ Geneva, Observ Geneve, CH-1290 Sauverny, Switzerland

[7] Queens Univ Belfast, Sch Math & Phys, Astrophys Res Ctr, Belfast BT7 1NN, Antrim, North Ireland

[8] Isaac Newton Grp Telescopes, Santa Cruz De Palma 38700, Spain

[9] Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England

[10] OverSky, F-33127 St Jean Dillac, France

[11] Las Cumbres Observ, Goleta, CA 93117 USA

[12] Open Univ, Milton Keynes MK7 6AA, Bucks, England

[13] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England

[14] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA

来源：

ASTRONOMY & ASTROPHYSICS | 2013年 / 549卷

关键词：

planetary systems; techniques: polarimetric; techniques: radial velocities; CORALIE SURVEY; HOT JUPITERS; LIGHT CURVES; STELLAR; STARS; EXOPLANET; ISOCHRONES; PARAMETERS; EVOLUTION; MODELS;

D O I：

10.1051/0004-6361/201220363

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the discovery of four new transiting hot Jupiters, detected mainly from SuperWASP-North and SOPHIE observations. These new planets, WASP-52b, WASP-58b, WASP-59b, and WASP-60b, have orbital periods ranging from 1.7 to 7.9 days, masses between 0.46 and 0.94 M-Jup, and radii between 0.73 and 1.49 R-Jup. Their G1 to K5 dwarf host stars have V magnitudes in the range 11.7-13.0. The depths of the transits are between 0.6 and 2.7%, depending on the target. With their large radii, WASP-52b and WASP-58b are new cases of low-density, inflated planets, whereas WASP-59b is likely to have a large, dense core. WASP-60 shows shallow transits. In the case of WASP-52 we also detected the Rossiter-McLaughlin anomaly via time-resolved spectroscopy of a transit. We measured the sky-projected obliquity lambda = 24 degrees(+17)(-9), indicating that WASP-52b orbits in the same direction as its host star is rotating and that this prograde orbit is slightly misaligned with the stellar equator. These four new planetary systems increase our statistics on hot Jupiters and provide new targets for follow-up studies.

引用

页数：11

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