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J/A+A/522/A29       OGLE2-TR-L9 g'r'i'z' light curves            (Lendl+, 2010)

New parameters and transit timing studies for OGLE2-TR-L9 b. Lendl M., Afonso C., Koppenhoefer J., Nikolov N., Henning T., Swain M., Greiner J. <Astron. Astrophys. 522, A29 (2010)> =2010A&A...522A..29L
ADC_Keywords: Stars, double and multiple ; Planets ; Photometry, SDSS Keywords: techniques: photometric ; planetary systems ; planets and satellites: individual: OGLE2-TR-L9 b Abstract: Repeated observations of exoplanet transits allow us to refine the planetary parameters and probe them for any time dependent variations. In particular deviations of the period from a strictly linear ephemeris, transit timing variations (TTVs), can indicate the presence of additional bodies in the planetary system. Aims: Our goal was to reexamine the largely unstudied OGLE2-TR-L9 system with high cadence, multi-color photometry in order to refine the planetary parameters and probe the system for TTVs. From our analysis we find that the semi-major axis and the inclination differ from the previously published values. With the newly observed transits, we were able to refine the ephemeris to 2454492.80008(±0.00014) +2.48553417(±6.4)x10-7E. The newly derived parameters are a=0.0418(±0.0015)AU, rp=1.67(±0.05) Rj, and inc=82.47°(±0.12), differing significantly in a and inc from the previously published values. Within our data, we find indications for TTVs. Description: We observed five full transits of OGLE2-TR-L9 with the GROND instrument at the ESO/MPG 2.2m telescope at La Silla Observatory. GROND is a multichannel imager that allowed us to gather simultaneous light curves in the g', r', i', and z' filters. Objects: --------------------------------------------------------------- RA (2000) DE Designation(s) --------------------------------------------------------------- 11 07 55.2 -61 08 47 OGLE2-TR-L9 = 2MASS J11075518-6108465 --------------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file tableg.dat 34 922 g' data tablei.dat 34 921 i' data tabler.dat 34 917 r' data tablez.dat 34 922 z' data
Byte-by-byte Description of file: table*.dat
Bytes Format Units Label Explanations
1- 14 F14.6 d HJD Heliocentric Julian Date 18- 24 F7.4 mag mag SDSS g', i', r' or z' differential magnitude 28- 34 F7.4 mag e_mag rms uncertainty on mag
Acknowledgements: Monika Lendl, Monika.Lendl(at)unige.ch
(End) Patricia Vannier [CDS] 20-Oct-2010
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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