J/ApJ/745/80 HAT-P-25 differential photometry (Quinn+, 2012)
HAT-P-25b: a Hot-Jupiter transiting a moderately faint G star.
Quinn S.N., Bakos G.A., Hartman J., Torres G., Kovacs G., Latham D.W.,
Noyes R.W., Fischer D.A., Johnson J.A., Marcy G.W., Howard A.W.,
Szentgyorgyi A., Furesz G., Buchhave L.A., Beky B., Sasselov D.D.,
Stefanik R.P., Perumpilly G., Everett M., Lazar J., Papp I., Sari P.
<Astrophys. J., 745, 80 (2012)>
=2012ApJ...745...80Q 2012ApJ...745...80Q
ADC_Keywords: Stars, double and multiple ; Photometry ; Planets
Keywords: planetary systems - stars: individual (HAT-P-25, GSC 1788-01237) -
techniques: photometric - techniques: spectroscopic
Abstract:
We report the discovery of HAT-P-25b, a transiting extrasolar planet
orbiting the V=13.19 G5 dwarf star GSC 1788-01237, with a period
P=3.652836±0.000019days, transit epoch Tc=2455176.85173±0.00047
(BJD - barycentric Julian dates throughout the paper are calculated
from Coordinated Universal Time, UTC), and transit duration
0.1174±0.0017 days. The host star has a mass of 1.01±0.03M☉,
radius of 0.96+0.05-0.04R☉, effective temperature
5500±80K, and metallicity [Fe/H]=+0.31±0.08. The planetary
companion has a mass of 0.567±0.022 MJ and radius of
1.190+0.081-0.056RJ yielding a mean density of 0.42±0.07g/cm3.
Description:
We conducted photometric follow-up observations with the KeplerCam CCD
camera on the FLWO 1.2m telescope. We observed two transit events of
HAT-P-25 on the nights of 2009 October 31 and 2010 January 1 (Figure
3). On 2009 October 31, 124 frames were acquired with a cadence of
133s (120s of exposure time) in the Sloan i band, while on 2010
January 1, 190 frames were acquired with a cadence of 109s (80s of
exposure time) in the Sloan i band.
Objects:
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RA (2000) DE Designation(s) (Period)
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03 13 44.50 +25 11 50.7 HAT-P-25 = GSC 01788-01237 (P=3.652836)
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 39 314 High-precision differential photometry of HAT-P-25
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See also:
J/MNRAS/422/2024 : X-ray-age relation & exoplanet evaporation (Jackson+, 2012)
J/ApJ/742/116 : Photometry of four massive transiting exoplanets (Bakos+, 2011)
J/ApJ/742/59 : HAT-P-32 and HAT-P-33 follow-up (Hartman+, 2011)
J/AJ/142/95 : HAT-P-31 differential photometry (Kipping+, 2011)
J/ApJ/735/24 : HAT-P-30 follow-up photometry (Johnson+, 2011)
J/ApJ/734/109 : Follow-up photometry of HAT-P-27 (Beky+, 2011)
J/ApJ/733/116 : HAT-P-28 and HAT-P-29 photometry (Buchhave+, 2011)
J/ApJ/728/138 : Follow-up photometry of HAT-P-26 (Hartman+, 2011)
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 (BJD-2400000)
13- 20 F8.5 mag mag [-0.009/0.027] Processed magnitude in Filt (1)
22- 28 F7.5 mag e_mag [0.001/0.003] The 1σ error in mag
30- 37 F8.5 mag Omag [11.49/11.60] Original magnitude in Filt (2)
39 A1 --- Filt [i] Filter used in the observation (i)
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Note (1): The out-of-transit level has been subtracted. These magnitudes have
been subjected to 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] 30-Jul-2013