J/MNRAS/408/1494 Planetary transits of TrES-2 and TrES-3 (Colon+, 2010)
Characterizing transiting extrasolar planets with narrow-band photometry and
GTC/OSIRIS.
Colon K. D., Ford E. B., Lee B., Mahadevan S., Blake C. H.
<Mon. Not. R. Astron. Soc. 408, 1494 (2010)>
=2010MNRAS.408.1494C 2010MNRAS.408.1494C
ADC_Keywords: Stars, variable ; Planets ; Photometry, CCD
Keywords: techniques: photometric - stars: individual: TrES-2 -
stars: individual: TrES-3 - planetary systems
Abstract:
We present the first extrasolar planet observations from the 10.4-m
Gran Telescopio Canarias (GTC). We used the Optical System for Imaging
and low Resolution Integrated Spectroscopy (OSIRIS) tunable filter
imager on the GTC to acquire high-precision, narrow-band photometry of
the transits of the giant exoplanets, TrES-2b and TrES-3b. We obtained
near-simultaneous observations in two near-infrared wavelengths (790.2
and 794.4nm). We provide normalized flux ratios for each target, where
the flux ratio is defined as the target flux divided by the total
combined flux from several non-variable reference stars. The flux
ratios have been normalized against the baseline (out-of-transit) flux
ratio for each target.
We provide normalized flux ratios for each target, where the flux
ratio is defined as the target flux divided by the total combined
flux from several non-variable reference stars. The flux ratios have
been normalized against the baseline (out-of-transit) flux ratio for
each target.
Description:
The photometric data presented in this paper were obtained on 2009
June 25 (for TrES-2) and 2009 August 10 (for TrES-3) with the 10.4-m
Gran Telescopio Canarias (GTC), located at the Observatorio del Roque
de los Muchachos, on the island of La Palma. We observed the targets
with the OSIRIS tunable filter imager, which has two 2048x4096 pixel
CCDs that provide a field of view of approximately 7.8x7.8arcmin2.
We obtained near-simultaneous observations in two near-infrared,
narrow passbands (790.2 and 794.4nm).
Objects:
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RA (2000) DE Designation(s) (files)
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19 07 14.0 +49 18 59 TrES-2 = NAME TrES-2b (tres2)
17 52 07.0 +37 32 46 TrES-3 = NAME TrES-3b (tres3)
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tres2.dat 34 106 Relative Photometry of TrES-2
tres3.dat 34 71 Relative Photometry of TrES-3
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See also:
J/AJ/136/267 : Six occultations of the exoplanet TrES-3 (Winn+, 2008)
J/A+A/500/L45 : Transits of the TrES-2 exoplanet (Mislis+, 2009)
J/ApJ/664/1185 : Three transits of the exoplanet TrES-2 (Holman+, 2007)
J/A+A/508/1011 : Planetary transit of TrES-1 and TrES-2 (Rabus+, 2009)
J/A+A/510/A107 : TrES-2b multi-band transit observations (Mislis+, 2010)
Byte-by-byte Description of file: tres2.dat tres3.dat
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Bytes Format Units Label Explanations
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1- 5 F5.1 nm lambda [790/795] Observed Wavelength
7- 18 F12.4 d HJD Heliocentric Julian Date
20- 26 F7.5 --- Frel Relative Flux Ratio
28- 34 F7.5 --- e_Frel Uncertainty in Relative Flux Ratio
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Acknowledgements:
Knicole D. Colon, knicole(at)astro.ufl.edu
(End) Knicole D. Colon [Univ. of Florida], Patricia Vannier [CDS] 04-Nov-2010