J/A+A/502/391 WASP-13b photometry and radial velocities (Skillen+, 2009)
The 0.5 MJ transiting exoplanet WASP-13b.
Skillen I., Pollacco D., Collier Cameron A., Hebb L., Simpson E.,
Bouchy F., Christian D.J., Gibson N.P., Hebrard G., Joshi Y.C.,
Loeillet B., Smalley B., Stempels H.C., Street R.A., Udry S., West R.G.,
Anderson D.R., Barros S.C.C., Enoch B., Haswell C.A., Hellier C., Horne K.,
Irwin J., Keenan F.P., Lister T.A., Maxted P., Mayor M., Moutou C.,
Norton A.J., Parley N., Queloz D., Ryans R., Todd I., Wheatley P.J.,
Wilson D.M.
<Astron. Astrophys. 502, 391 (2009)>
=2009A&A...502..391S 2009A&A...502..391S
ADC_Keywords: Binaries, eclipsing ; Planets ; Radial velocities ; Photometry
Keywords: binaries: eclipsing - planetary systems - techniques: photometric -
techniques: radial velocities - techniques: spectroscopic -
stars: individual: WASP-13 -
Abstract:
We report the discovery of WASP-13b, a low-mass
Mp=0.46+0.06-0.05 MJ transiting exoplanet with an orbital
period of 4.35298±0.00004days. The transit has a depth of 9mmag, and
although our follow-up photometry does not allow us to constrain the
impact parameter well (0<b<0.46), with radius in the range
Rp∼1.06-1.21RJ the location of WASP-13b in the mass-radius plane
is nevertheless consistent with H/He-dominated, irradiated, low core
mass and core-free theoretical models. The G1V host star is similar to
the Sun in mass M*=1.03+0.11-0.09M☉ and metallicity
([M/H]=0.0±0.2, but is possibly older (8.5+5.5-4.9Gyr).
Description:
WASP-13 was monitored with the SuperWASP-N Camera (La Palma) from 2006
November 27 to 2007 April 1.
Objects:
-----------------------------------------
RA (2000) DE Designation(s)
-----------------------------------------
09 20 24.7 +33 52 57 WASP13 = WASP-13
-----------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
jgtphot.dat 34 1027 JGT differential photometry of WASP13
swphot.dat 75 3329 SuperWASP differential photometry of WASP13
ophrv.dat 34 11 SOPHIE radial velocities of WASP13
--------------------------------------------------------------------------------
See also:
May/10 : Discovery and characterization of WASP-6b (Gillon+, 2009)
Byte-by-byte Description of file: jgtphot.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 14 F14.6 d HJD Heliocentric Julian date
17- 24 F8.5 mag Dmag Differential magnitude
28- 34 F7.5 mag e_Dmag rms uncertainty on Dmag
--------------------------------------------------------------------------------
Byte-by-byte Description of file: swphot.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 20 F20.12 d HJD Heliocentric Julian date
27- 50 E24.17 mag Dmag Differential magnitude
53- 75 E23.17 mag e_Dmag ?=10. rms uncertainty on Dmag
--------------------------------------------------------------------------------
Byte-by-byte Description of file: ophrv.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 13 F13.5 d BJD Barycentric Julian date
18- 23 F6.4 km/s RV Radial velocity
29- 34 F6.4 km/s e_RV rms uncertainty on RV
--------------------------------------------------------------------------------
Acknowledgements:
Ian Skillen, wji(at)ing.iac.es
(End) Patricia Vannier [CDS] 18-May-2009