J/A+A/536/L9 Detections of transit variations in KOI 806 (Tingley+, 2011)
Detection of transit timing variations in excess of one hour in the Kepler
multi-planet candidate system KOI 806 with the GTC.
Tingley B., Palle E., Parviainen H., Deeg H.J., Zapatero Osorio M.R.,
Cabrera-Lavers A., Belmonte J.A., Montanes Rodriguez P., Murgas F.,
Ribas I.
<Astron. Astrophys. 536, L9 (2011)>
=2011A&A...536L...9T 2011A&A...536L...9T
ADC_Keywords: Stars, variable ; Photometry, CCD ; Photometry, SDSS ; Planets
Keywords: techniques: photometric - planetary systems -
star: individual: KOI 806 - star: individual: KIC 3832474
Abstract:
We report the detection of transit timing variations (TTVs) well in
excess of one hour in the Kepler multi-planet candidate system KOI
806. This system exhibits transits consistent with three separate
planets - a Super-Earth, a Jupiter, and a Saturn - lying very
nearly in a 1:2:5 resonance, respectively.
Description:
g' and z' photometric time series for the last ∼1.6hrs of the transit
of KOI 806.2 observed with the Gran Telescopio Canarias at
Observatorio del Roque de los Muchachos on the island of La Palma,
Spain. The observations occurred on JD 2455740, revealing a transit
timing variation of -103.5±6.9 minutes. The raw fits files were
bias and flat field corrected using IRAF and the differential
photometry determined using the VAPHOT/Vanaliz package (Deeg & Doyle
2001, 2001phot.work...85D).
Objects:
-------------------------------------------------
RA (2000) DE Designation(s)
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19 01 08.071 +38 56 50.21 KOI 806 = KIC 3832474
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
g_phot.dat 24 562 g' photometry
z_phot.dat 24 606 z' photometry
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See also:
V/133 : Kepler Input Catalog (Kepler Mission Team, 2009)
Byte-by-byte Description of file: g_phot.dat z_phot.dat
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Bytes Format Units Label Explanations
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1- 14 F14.6 d HJD Heliocentric Julian Date
16- 22 F7.4 mag Dmag Differential g' or z' magnitude
24 A1 --- Band [gz] Band of the magnitude
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Acknowledgements:
Brandon Tingley, btingley(at)iac.es
References:
Deeg & Doyle, 2001phot.work...85D
VAPHOT - A Package for Precision Differential Aperture Photometry
(End) Brandon Tingley [IAC, Spain], Patricia Vannier [CDS] 22-Nov-2011