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J/AJ/137/4911       Six transits of the exoplanet XO-2b      (Fernandez+, 2009)

The transit light curve project. XII. Six transits of the exoplanet XO-2b. Fernandez J.M., Holman M.J., Winn J.N., Torres G., Shporer A., Mazeh T., Esquerdo G.A., Everett M.E. <Astron. J., 137, 4911-4916 (2009)> =2009AJ....137.4911F
ADC_Keywords: Stars, variable ; Planets ; Photometry Keywords: planetary systems - stars: individual (XO-2, GSC 03413-00005) Abstract: We present photometry of six transits of the exoplanet XO-2b. By combining the light-curve analysis with theoretical isochrones to determine the stellar properties, we find the planetary radius to be 0.996+0.031-0.018RJup and the planetary mass to be 0.565±0.054MJup. These results are consistent with those reported previously, and are also consistent with theoretical models for gas giant planets. The midtransit times are accurate to within 1 minute and are consistent with a constant period. However, the period we derive differs by 2.5{sigma } from the previously published period. More data are needed to tell whether the period is actually variable (as it would be in the presence of an additional body) or if the timing errors have been underestimated. Description: We observed four complete transits, and one partial transit, with the 1.2m (48 inch) telescope at the Fred L. Whipple Observatory (FLWO) on Mount Hopkins in Arizona, on 2008 Jan 1, Jan 14, Feb 12, Feb 25 and Mar 04. We observed one complete transit with the Centurion 0.46m (18inch) telescope, at the Wise Observatory in Israel on 2008 Mar 06. Objects: --------------------------------------------- RA (2000) DE Designation(s) --------------------------------------------- 07 48 06.5 +50 13 33 XO-2 = TYC 3413-5-1 --------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 34 2630 Transit light curve
See also: J/ApJ/652/1715 : Four transits of the exoplanet XO-1b (Holman+, 2006) J/AJ/133/11 : Photometry of OGLE-TR 111 (Winn+, 2007) J/ApJ/657/1098 : Transit of TrES-1 (Winn+, 2007) J/ApJ/655/1103 : Five transits of the exoplanet OGLE-TR-10b (Holman+, 2007) J/AJ/133/1828 : Transit light curves of HD 189733 (Winn+, 2007) J/ApJ/664/1185 : Three transits of the exoplanet TrES-2 (Holman+, 2007) J/AJ/134/1707 : Six transit of exoplanet HAT-P-1b (Winn+, 2007) J/AJ/136/267 : Six occultations of the exoplanet TrES-3 (Winn+, 2008) J/ApJ/683/1076 : Transits of exoplanet XO-3b (Winn+, 2008) J/ApJ/693/794 : Transit of exoplanet HD 17156b (Winn+, 2009) J/AJ/137/3826 : Two transits of the giant planet WASP-4b (Winn+, 2009) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 10 A10 "YYYY/MM/DD" Obs.Date Observation date (1) 12 A1 --- Filt [zn] Filter (SDSS z or n for 'no filter') 14- 26 F13.5 d HJD Heliocentric Julian Date 28- 34 F7.5 --- Rflux Relative flux
Note (1): Additional observational details for each individual date as follows: 2008/01/01 = 1.2m FLWO, KeplerCam, Sloan z 2008/01/14 = 1.2m FLWO, KeplerCam, Sloan z 2008/02/12 = 1.2m FLWO, KeplerCam, Sloan z 2008/02/25 = 1.2m FLWO, KeplerCam, Sloan z 2008/03/04 = 1.2m FLWO, KeplerCam, Sloan z 2008/03/06 = 0.46m Wise, SBIG ST-10 XME, no filter
History: From electronic version of the journal References: Holman et al., Paper I 2006ApJ...652.1715H, Cat. J/ApJ/652/1715 Winn et al., Paper II 2007AJ....133...11W, Cat. J/AJ/133/11 Winn et al., Paper III 2007ApJ...657.1098W, Cat. J/ApJ/657/1098 Holman et al., Paper IV 2007ApJ...655.1103H, Cat. J/ApJ/655/1103 Winn et al., Paper V 2007AJ....133.1828W, Cat. J/AJ/133/1828 Holman et al. Paper VI 2007ApJ...664.1185H, Cat. J/ApJ/664/1185 Winn et al., Paper VII 2007AJ....134.1707W, Cat. J/AJ/134/1707 Winn et al., Paper VIII 2008AJ....136..267W, Cat. J/AJ/136/267 Winn et al., Paper IX 2008ApJ...683.1076W, Cat. J/ApJ/683/1076 Winn et al., Paper X 2009ApJ...693..794W, Cat. J/ApJ/693/794 Winn et al., Paper XI 2009AJ....137.3826W, Cat. J/AJ/137/3826 Fernandez et al., Paper XII 2009AJ....137.4911F, Cat. J/AJ/137/4911
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 09-Aug-2009
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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