J/ApJ/720/1118 i-band photometry of HAT-P-16 (Buchhave+, 2010)
HAT-P-16b: a 4 MJ planet transiting a bright star on an eccentric orbit.
Buchhave L.A., Bakos G.A., Hartman J.D., Torres G., Kovacs G., Latham D.W.,
Noyes R.W., Esquerdo G.A., Everett M., Howard A.W., Marcy G.W.,
Fischer D.A., Johnson J.A., Andersen J., Furesz G., Perumpilly G.,
Sasselov D.D., Stefanik R.P., Beky B., Lazar J., Papp I., Sari P.
<Astrophys. J., 720, 1118-1125 (2010)>
=2010ApJ...720.1118B 2010ApJ...720.1118B
ADC_Keywords: Photometry ; Stars, double and multiple ; Planets
Keywords: planetary systems - stars: individual (HAT-P-16, GSC 2792-01700) -
techniques: photometric - techniques: spectroscopic
Abstract:
We report the discovery of HAT-P-16b, a transiting extrasolar planet
orbiting the V=10.8mag F8 dwarf GSC 2792-01700, with a period
P=2.775960±0.000003 days, transit epoch Tc=2455027.59293±0.00031
(BJD10), and transit duration 0.1276±0.0013 days. The host star has
a mass of 1.22±0.04M☉, radius of 1.24±0.05R☉,
effective temperature 6158±80K, and metallicity [Fe/H]=+0.17±0.08.
The planetary companion has a mass of 4.193±0.094MJ and radius of
1.289±0.066RJ, yielding a mean density of 2.42±0.35g/cm3.
Comparing these observed characteristics with recent theoretical
models, we find that HAT-P-16b is consistent with a 1Gyr
H/He-dominated gas giant planet. HAT-P-16b resides in a sparsely
populated region of the mass-radius diagram and has a non-zero
eccentricity of e=0.036 with a significance of 10σ.
Description:
To confirm the transit signal and obtain high-precision light curves
for modeling the system, we conducted photometric follow-up
observations with the KeplerCam CCD on the FLWO 1.2m telescope. We
observed four transit events of HAT-P-16 on the nights of 2009
September 10 and 21, October 19 and 30.
Objects:
----------------------------------------------------------------
RA (2000) DE Designation(s) (Period)
----------------------------------------------------------------
00 38 17.56 +42 27 47.2 HAT-P-16 = TYC 2792-1700-1 (2.775960)
----------------------------------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table2.dat 40 1240 Follow-up photometry of HAT-P-16
--------------------------------------------------------------------------------
See also:
J/MNRAS/422/2024 : X-ray-age relation and exoplanet evaporation (Jackson+,
2012)
J/MNRAS/414/1278 : Eccentricities of transiting planets (Pont+, 2011)
J/MNRAS/411/L46 : Exoplanet magnetic fields (Vidotto+, 2011)
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 13 F13.5 d BJD Barycentric Julian Date
15- 22 F8.5 mag mag Observed magnitude (1)
24- 30 F7.5 mag e_mag The 1σ uncertainty in mag
32- 38 F7.5 mag omag Original magnitude (2)
40 A1 --- Filt [i] Observational filter (Sloan i band)
--------------------------------------------------------------------------------
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): These are raw magnitude values without application of the EPD and
TFA procedures.
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 28-Jun-2012