2011A&A...526A.130S

Query : 2011A&A...526A.130S

2011A&A...526A.130S - Astronomy and Astrophysics, volume 526A, 130-130 (2011/2-1)

WASP-34b: a near-grazing transiting sub-Jupiter-mass exoplanet in a hierarchical triple system.

SMALLEY B., ANDERSON D.R., COLLIER CAMERON A., HELLIER C., LENDL M., MAXTED P.F.L., QUELOZ D., TRIAUD A.H.M.J., WEST R.G., BENTLEY S.J., ENOCH B., GILLON M., LISTER T.A., PEPE F., POLLACCO D., SEGRANSAN D., SMITH A.M.S., SOUTHWORTH J., UDRY S., WHEATLEY P.J., WOOD P.L. and BENTO J.

Abstract (from CDS):

We report the discovery of WASP-34b, a sub-Jupiter-mass exoplanet transiting its 10.4-magnitude solar-type host star (1SWASPJ110135.89-235138.4; TYC 6636-540-1) every 4.3177 days in a slightly eccentric orbit (e=0.038±0.012). We find a planetary mass of 0.59±0.01MJup and radius of 1.22+0.11–0.08RJup. There is a linear trend in the radial velocities of 55±4m/s/y indicating the presence of a long-period third body in the system with a mass γ0.45MJup at a distance of γ1.2AU from the host star. This third-body is either a low-mass star, a white dwarf, or another planet. The transit depth ((RP/R*)2=0.0126) and high impact parameter (b=0.90) suggest that this could be the first known transiting exoplanet expected to undergo grazing transits, but with a confidence of only ∼80%.

Abstract Copyright: ∼

Journal keyword(s): planets and satellites: general - stars: individual: WASP-34 - techniques: photometric - techniques: spectroscopic - techniques: radial velocities

VizieR on-line data: <Available at CDS (J/A+A/526/A130): table1.dat euler1.dat euler2.dat>

Simbad objects: 10

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Number of rows : 10
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 HAT-P-25b Pl 03 13 44.4981245184 +25 11 50.689343148           ~ 39 1
2 WASP-22b Pl 03 31 16.3267124400 -23 49 10.840600632           ~ 48 1
3 HAT-P-24b Pl 07 15 18.0193656720 +14 15 45.408025008           ~ 43 1
4 CD-23 9677 EB* 11 01 35.8978277184 -23 51 38.386984896   11.05 10.28 10.21 9.66 ~ 61 1
5 CD-23 9677b Pl 11 01 35.8978277184 -23 51 38.386984896           ~ 48 1
6 WASP-25b Pl 13 01 26.3760406392 -27 31 19.922387484           ~ 46 1
7 CD-27 10695b Pl 15 59 50.9491505016 -28 03 42.312819096           ~ 261 1
8 BD+38 2917b Pl 17 20 27.8781604680 +38 14 31.908984936           ~ 82 1
9 Kepler-1b Pl 19 07 14.0375836512 +49 18 59.091482160           ~ 330 2
10 * 51 Peg PM* 22 57 27.9804852576 +20 46 07.797040104 6.39 6.16 5.46 4.97 4.61 G2IV 1160 1

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