J/AJ/163/158 BRV light curve of XO-3 (Worku+, 2022)
Revisiting the Full Sets of Orbital Parameters for the XO-3 System: No Evidence
for Temporal Variation of the Spin-Orbit Angle.
Worku K., Wang S., Burt J., Rice M., Wang X.-Y., Wang Y.-H., Vogt S.S.,
Butler R.P., Addison B., Holden B., Peng X.-Y., Wu Z.-Y., Zhou Xu,
Liu H.-G., Zhang H., Zhou J.-L., Laughlin G.
<Astron. J., 163, 158 (2022)>
=2022AJ....163..158W 2022AJ....163..158W
ADC_Keywords: Exoplanets; Stars, F-type; Photometry, VRI
Keywords: Exoplanets
Abstract:
We present 12 new transit light curves and 16 new out-of-transit
radial-velocity measurements for the XO-3 system. By modeling our
newly collected measurements together with archival photometric and
Doppler velocimetric data, we confirmed the unusual configuration of
the XO-3 system, which contains a massive planet
(MP=11.92-0.63+0.59MJ) on a relatively eccentric
(e=0.2853-0.0026+0.0027) and short-period (3.19152±0.00145day)
orbit around a massive star (M*=1.219-0.095+0.090M☉).
Furthermore, we find no strong evidence for a temporal change of
either vsini* (and by extension, the stellar spin vector of XO-3), or
the transit profile (and thus orbital angular momentum vector of
XO-3b). We conclude that the discrepancy in previous
Rossiter-McLaughlin measurements (70.0°±15.0°; Hebrard et
al. 2008; 37.3°±3.7°; Winn et al. 2009;
37.3°±3.0°; Hirano et al. 2011) may have stemmed from
systematic noise sources.
Description:
Our new photometric data set, composed of 12 light curves, was
collected using the Xinglong Schmidt and Xinglong 60cm telescopes
operated by the National Astronomical Observatories of China. These
observations span roughly 4yr, from 2014 March to 2017 December. Four
of these light curves were obtained using the Xinglong Schmidt
telescope, which utilizes a 4Kx4K CCD. This CCD has a field of view
(FOV) of 94x94' and a pixel scale of 1.38"/pixel.
Objects:
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RA (2000) DE Designation(s) (Period)
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04 21 52.70 +57 49 01.9 XO-3 = BD+57 793 (P=3.19152)
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 51 3977 Photometry of XO-3
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See also:
J/ApJS/159/141 : Spectroscopic properties of cool stars. I. (Valenti+, 2005)
J/ApJ/683/1076 : Transits of exoplanet XO-3b (Winn+, 2008)
J/MNRAS/396/1023 : Transiting planetary system WASP-5 (Southworth+, 2009)
J/ApJ/700/302 : Relative photometry of XO-3 (Winn+, 2009)
J/A+A/529/A75 : Limb-darkening coefficients (Claret+, 2011)
J/ApJ/757/161 : Spectroscopy of 56 exoplanet host stars (Torres+, 2012)
J/ApJ/785/126 : HIRES radial velocity measurements (Knutson+, 2014)
J/ApJ/805/175 : Keck and APF radial velocities of HD7924 (Fulton+, 2015)
J/ApJ/808/16 : The Cannon new approach to determine abundances (Ness+, 2015)
J/ApJS/225/32 : Extended abundance analysis of cool stars (Brewer+, 2016)
J/A+A/602/A107 : 231 transiting planets eccentricity and mass (Bonomo+, 2017)
J/AJ/154/122 : Radial velocities for the HD 3167 system (Christiansen+, 2017)
J/AJ/153/191 : Transiting planet GJ 1132 (Southworth+, 2017)
J/AJ/154/49 : Transiting Exoplanet Monitoring. II. HAT-P-33 (Wang+, 2017)
J/A+A/625/A16 : HD 2685 TESS photometry (Jones+, 2019)
J/AJ/157/82 : TEMP. V. Photometry HAT-P-9, HAT-P-32 & HAT-P-36 (Wang+, 2019)
J/ApJ/898/119 : Archival Keck HIRES spectra analyzed The Cannon (Rice+, 2020)
J/AJ/161/10 : Radial velocities for 4 host stars (Burt+, 2021)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 16 F16.8 d BJD [2456719/2458073] Barycentric Julian Date in TDB
18- 24 F7.5 --- Flux [0.97/1.02] Relative flux in Filter
26- 32 F7.5 --- e_Flux [0.0003/0.005] Uncertainty in Flux
34- 49 A16 --- Inst Instrument used; Xinglong 60cm or Schmidt
51- 51 A1 --- Filt Filter; B, R or V
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History:
From electronic version of the journal
(End) Prepared by [AAS], Coralie Fix [CDS], 10-May-2022