2009A&A...502..395W

Query : 2009A&A...502..395W

2009A&A...502..395W - Astronomy and Astrophysics, volume 502, 395-400 (2009/7-4)

The sub-Jupiter mass transiting exoplanet WASP-11b.

WEST R.G., COLLIER CAMERON A., HEBB L., JOSHI Y.C., POLLACCO D., SIMPSON E., SKILLEN I., STEMPELS H.C., WHEATLEY P.J., WILSON D., ANDERSON D., BENTLEY S., BOUCHY F., CHRISTIAN D., ENOCH B., GIBSON N., HEBRARD G., HELLIER C., LOEILLET B., MAYOR M., MAXTED P., McDONALD I., MOUTOU C., PONT F., QUELOZ D., SMITH A.M.S., SMALLEY B., STREET R.A. and UDRY S.

Abstract (from CDS):

We report the discovery of a sub-Jupiter mass exoplanet transiting a magnitude V=11.6 host star 1SWASP J030928.54+304024.7. A simultaneous fit to the transit photometry and radial-velocity measurements yield a planet mass Mp=0.53±0.07MJ, radius Rp=0.91+0.06–0.03RJ and an orbital period of 3.722465+0.000006–0.000008days. The host star is an early to mid-K dwarf, with a spectral analysis yielding an effective temperature of 4800±100K and logg=4.45±0.2. It is amongst the smallest, least massive and lowest luminosity stars known to harbour a transiting exoplanet. WASP-11b is the third least strongly irradiated transiting exoplanet discovered to date, experiencing an incident flux Fp=1.9x108erg/s/cm2 and having an equilibrium temperature Teql=960±70K.

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Journal keyword(s): stars: individual: WASP-11 - planetary systems - techniques: photometric - techniques: radial velocities - techniques: spectroscopic

Simbad objects: 8

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Number of rows : 8
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 WASP-1 V* 00 20 40.0745768856 +31 59 23.954809596   12.06 11.31     F7V 121 1
2 HD 17156b Pl 02 49 44.4871034544 +71 45 11.629235988           ~ 184 1
3 WASP-11b Pl 03 09 28.5433589520 +30 40 24.862993356           ~ 75 1
4 WASP-11 ** 03 09 28.5433589520 +30 40 24.862993356   12.58 11.57 11.42   K3V 84 1
5 Ross 905b Pl 11 42 11.0933350978 +26 42 23.650782778           ~ 811 1
6 BD+28 2507b Pl 16 02 11.8462322592 +28 10 10.420201452           ~ 184 1
7 BD+35 3293 V* 18 34 31.6252443960 +35 39 41.491899468   11.07 10.63 10.52   F7V 128 1
8 HD 189733b Pl 20 00 43.7129433648 +22 42 39.073143456           ~ 1440 1

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