WASP-104b and WASP-106b: two transiting hot Jupiters in 1.75-day and 9.3-day orbits

[en] We report the discovery from the WASP survey of two exoplanetary systems, each consisting of a Jupiter-sized planet transiting an 11th magnitude (V) main-sequence star. WASP-104b orbits its star in 1.75 d, whereas WASP-106b has the fourth-longest orbital period of any planet discovered by means of transits observed from the ground, orbiting every 9.29 d. Each planet is more massive than Jupiter (WASP-104b has a mass of 1.27±0.05 MJup, while WASP-106b has a mass of 1.93±0.08 MJup). Both planets are just slightly larger than Jupiter, with radii of 1.14±0.04 and 1.09±0.04 RJup for WASP-104 and WASP-106 respectively. No significant orbital eccentricity is detected in either system, and while this is not surprising in the case of the short-period WASP-104b, it is interesting in the case of WASP-106b, because many otherwise similar planets are known to have eccentric orbits.

Disciplines :

Space science, astronomy & astrophysics

Author, co-author :

Smith, A. M. S.

Anderson, D. R.

Armstrong, D. J.

Barros, S. C. C.

Bonomo, A. S.

Bouchy, F.

Brown, D. J. A.

Collier Cameron, A.

Delrez, Laetitia ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Origines Cosmologiques et Astrophysiques (OrCa)

Faedi, F.

More authors (22 more)

Language :

English

Title :

WASP-104b and WASP-106b: two transiting hot Jupiters in 1.75-day and 9.3-day orbits

Publication date :

October 2014

Journal title :

Astronomy and Astrophysics

ISSN :

0004-6361

eISSN :

1432-0746

Publisher :

EDP Sciences, Les Ulis, France

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 18 August 2014

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