J/A+A/528/A63 Velocitometry transit of KOI-428b (Santerne+, 2011)
SOPHIE velocimetry of Kepler transit candidates.
II. KOI-428b: a hot Jupiter transiting a subgiant F-star.
Santerne A., Diaz R.F., Boucht F., Deleuil M., Moutou C., Hebrard G.,
Eggenberger A., Ehrenreich D., Gry C., Udry S.
<Astron. Astrophys., 528, A63 (2011)>
=2011A&A...528A..63S 2011A&A...528A..63S
ADC_Keywords: Stars, double and multiple ; Planets ; Radial velocities
Keywords: techniques: spectroscopic - techniques: radial velocities -
techniques: photometry - planetary systems - star: individual KOI-428b
Abstract:
We report the discovery of a hot Jupiter transiting a subgiant star
with an orbital period of 6.87-days thanks to public photometric data
from the Kepler space mission and new radial velocity observations
obtained by the SOPHIE spectrograph. The planet KOI-428b with a radius
of 1.17±0.04RJup and a mass of 2.2±0.4MJup, orbits around a
F5IV star with R*=2.13±0.06R☉, M*=1.48±0.06M_☉ and
Teff=6510±100K. The star KOI-428 is the largest and the most evolved
star discovered so far with a transiting planet
Description:
The target KOI-428 was observed by Kepler during the first 33.5-day
segment of the science operations (Q1) from May, 13 to June, 15, 2009
with a temporal sampling of 29.4 min.
Objects:
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RA (2000) DE Designation(s)
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19 47 15.3 +47 31 36 KOI-428 = 2MASS J19471528+4731357
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 38 11 SOPHIE measurements of KOI-428
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 12 F12.4 d BJD Barycentric Julian Date of Observation
14- 18 F5.3 km/s BRV Barycentric radial velocity
20- 24 F5.3 km/s e_BRV Barycentric radial velocity uncertainty
26- 31 F6.3 km/s Span Bisector span
33- 36 F4.1 --- SNR Signal-to-noise ratio per pixel at 550nm
38 I1 --- Moon [0/1] 1 = measurements affected by scattered
Moon light and corrected
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Acknowledgements:
Alexandre Santerne, alexandre.santerne(at)oamp.fr
References:
Ehrenreich et al., Paper I 2011A&A...525A..85E 2011A&A...525A..85E
(End) Patricia Vannier [CDS] 10-Feb-2011