J/ApJ/764/8 APOSTLE r'-band transit lightcurves of TrES-3b (Kundurthy+, 2013)
APOSTLE: 11 transit observations of TrES-3b.
Kundurthy P., Becker A.C., Agol E., Barnes R., Williams B.
<Astrophys. J., 764, 8 (2013)>
=2013ApJ...764....8K 2013ApJ...764....8K
ADC_Keywords: Stars, double and multiple ; Planets ; Photometry, RI
Keywords: eclipses; planetary systems;
planets and satellites: fundamental parameters;
planets and satellites: individual: TrES-3b
Abstract:
The Apache Point Survey of Transit Lightcurves of Exoplanets (APOSTLE)
observed 11 transits of TrES-3b over two years in order to constrain
system parameters and look for transit timing and depth variations. We
describe an updated analysis protocol for APOSTLE data, including the
reduction pipeline, transit model, and Markov Chain Monte Carlo
analyzer. Our estimates of the system parameters for TrES-3b are
consistent with previous estimates to within the 2σ confidence
level. We improved the errors (by 10%-30%) on system parameters such
as the orbital inclination (iorb), impact parameter (b), and stellar
density (ρ{sstarf}) compared to previous measurements. The
near-grazing nature of the system, and incomplete sampling of some
transits, limited our ability to place reliable uncertainties on
individual transit depths and hence we do not report strong evidence
for variability. Our analysis of the transit timing data shows no
evidence for transit timing variations and our timing measurements are
able to rule out super-Earth and gas giant companions in low-order
mean motion resonance with TrES-3b.
Description:
TrES-3 was observed by Apache Point Survey of Transit Lightcurves of
Exoplanets (APOSTLE) over a time span of two years between the summer
of 2009 and the fall of 2011. All observations of TrES-3 were carried
out using AGILE a high-speed frame-transfer photometer, on the ARC
3.5m telescope at Apache Point, New Mexico. The filter used for the
observations was the r' band similar to the SDSS r filter (with
central wavelength, λ0=626nm).
Objects:
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RA (ICRS) DE Designation(s) (Period)
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17 52 07.02 +37 32 46.2 TrES-3b = NAME TrES-3b (P=1.306186)
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 49 2589 APOSTLE lightcurve data for TrES-3
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See also:
J/AJ/145/68 : Five new transit light curves of TrES-3 (Jiang+, 2013)
J/ApJ/757/161 : Spectroscopy of 56 exoplanet host stars (Torres+, 2012)
J/ApJS/197/8 : Kepler's cand. mult. transiting planets (Lissauer+, 2011)
J/A+A/529/A75 : Limb-darkening coefficients (Claret+, 2011)
J/ApJ/736/19 : Kepler planetary candidates. II. (Borucki+, 2011)
J/ApJ/731/123 : APOSTLE light curve of GJ 1214b (Kundurthy+, 2011)
J/ApJ/716/1336 : Stability analysis of single-planet (Kopparapu+, 2010)
J/MNRAS/408/1494 : Planetary transits of TrES-2 and TrES-3 (Colon+, 2010)
J/ApJ/691/1145 : Spectrophotometry of TrES-3 and TrES-4 (Sozzetti+, 2009)
J/AJ/136/267 : Six occultations of the exoplanet TrES-3 (Winn+, 2008)
http://exoplanet.eu/ : The extrasolar planets encyclopaedia home page
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Seq [1/11] Transit number
4- 13 F10.7 d T-T0 [-0.12/0.11] Time - Mid transit time; BJD (1)
15- 25 F11.9 --- NFlux [0.9731/1.008] Normalized flux ratio
27- 37 F11.9 --- e_NFlux [0.0006/0.004] Error in NFlux
39- 49 F11.9 --- Model [0.97/1] Transit model data
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Note (1): To get time stamps, add mid transit times from table with TMCMC
fits from the section on Transit Timing Variations
(P=1.306186483±0.000000070d, T0=2454185.9109932±0.0000502 BJD)
---------------------------------
Epoch TMCMC σ
BJD-2400000
---------------------------------
597 54965.7046437 0.0001079
620 54995.7465390 0.0001326
836 55277.8821699 0.0002456
878 55332.7425269 0.0001033
891 55349.7228375 0.0003216
992 55481.6479691 0.0001589
1117 55644.9210892 0.0000699
1143 55678.8828740 0.0001637
1156 55695.8623990 0.0003861
1185 55733.7414753 0.0001397
1234 55797.7456860 0.0001699
---------------------------------
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 22-Oct-2014