J/ApJ/734/109 Follow-up photometry of HAT-P-27 (Beky+, 2011)
HAT-P-27b: a hot Jupiter transiting a G star on a 3 day orbit.
Beky B., Bakos G.A., Hartman J., Torres G., Latham D.W., Jordan A.,
Arriagada P., Bayliss D., Kiss L.L., Kovacs G., Quinn S.N., Marcy G.W.,
Howard A.W., Fischer D.A., Johnson J.A., Esquerdo G.A., Noyes R.W.,
Buchhave L.A., Sasselov D.D., Stefanik R.P., Perumpilly G., Lazar J.,
Papp I., Sari P.
<Astrophys. J., 734, 109 (2011)>
=2011ApJ...734..109B 2011ApJ...734..109B
ADC_Keywords: Photometry, SDSS ; Planets ; Stars, double and multiple ;
Stars, G-type
Keywords: planetary systems - stars: individual (HAT-P-27, GSC 0333-00351) -
techniques: photometric - techniques: spectroscopic
Abstract:
We report the discovery of HAT-P-27b, an exoplanet transiting the
moderately bright G8 dwarf star GSC 0333-00351 (V=12.214). The orbital
period is 3.039586±0.000012 days, the reference epoch of transit is
2455186.01879±0.00054 (BJD), and the transit duration is
0.0705±0.0019 days. The host star with its effective temperature
5300±90K is somewhat cooler than the Sun and is more metal-rich with
a metallicity of +0.29±0.10. Its mass is 0.94±0.04M☉ and
radius is 0.90+0.05-0.04R☉. For the planetary companion we
determine a mass of 0.660±0.033MJ and radius of
1.038+0.077-0.058RJ. For the 30 known transiting exoplanets
between 0.3MJ and 0.8MJ, a negative correlation between host star
metallicity and planetary radius and an additional dependence of
planetary radius on equilibrium temperature are confirmed at a high
level of statistical significance.
Description:
A high-precision photometric follow-up of a complete transit was
carried out: the transit of HAT-P-27 was observed on the night of 2010
March 2 with the KeplerCam CCD camera on the FLWO 1.2m telescope. We
acquired 165 science frames in Sloan i band.
Objects:
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RA (2000) DE Designation(s) (Period)
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14 51 04.19 +05 56 50.5 HAT-P-27 = GSC 00333-00351 (P=3.03958)
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 39 165 High-precision differential photometry of HAT-P-27
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See also:
J/MNRAS/422/2024 : X-ray-age relation & exoplanet evaporation (Jackson+, 2012)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 11 F11.5 d BJD Barycentric Julian Date (UTC); (BJD-2400000)
13- 20 F8.5 mag mag Corrected magnitude in Filt (1)
22- 28 F7.5 mag e_mag The 1σ uncertainty in mag
30- 37 F8.5 mag Omag Original, raw magnitude in Filt (2)
39 A1 --- Filt [i] Filter used in the observation (i filter)
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Note (1): The out-of-transit level has been subtracted. These magnitudes have
been obtained by the EPD and TFA procedures, carried out
simultaneously with the transit fit.
Note (2): Raw magnitude values without application of the EPD and TFA
procedures.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 27-Nov-2012