J/ApJ/707/446 HAT-P-13 photometry follow-up (Bakos+, 2009)
HAT-P-13b,c: a transiting hot Jupiter with a massive outer companion on an
eccentric orbit.
Bakos G.A., Howard A.W., Noyes R.W., Hartman J., Torres G., Kovacs G.,
Fischer D.A., Latham D.W., Johnson J.A., Marcy G.W., Sasselov D.D.,
Stefanik R.P., Sipocz B., Kovacs G., Esquerdo G.A., Pal A., Lazar J.,
Papp I., Sari P.
<Astrophys. J., 707, 446-456 (2009)>
=2009ApJ...707..446B 2009ApJ...707..446B
ADC_Keywords: Planets ; Photometry ; Stars, double and multiple
Keywords: planetary systems - stars: individual (HAT-P-13, GSC 3416-00543) -
techniques: photometric - techniques: spectroscopic
Abstract:
We report on the discovery of a planetary system with a close-in
transiting hot Jupiter on a near circular orbit and a massive outer
planet on a highly eccentric orbit. The inner planet, HAT-P-13b,
transits the bright V=10.622 G4 dwarf star GSC 3416-00543 every
P=2.916260±0.000010 days, with transit epoch
Tc=2454779.92979±0.00038 (BJD) and duration 0.1345±0.0017 days.
The outer planet HAT-P-13c orbits the star every P2=428.5±3.0 days
with a nominal transit center (assuming zero impact parameter) of
T2c=2454870.4±1.8 (BJD) or time of periastron passage
T2,peri=2454890.05±0.48 (BJD). Transits of the outer planet have
not been observed, and may not be present. The host star has a mass of
1.22+0.05-0.10M☉, radius of 1.56±0.08R☉, effective
temperature of 5653±90K, and is rather metal-rich with
[Fe/H]=+0.41±0.08.
Description:
The transits of HAT-P-13b were detected with the HAT-5 telescope.
The region around GSC 3416-00543, a field internally labeled as 136,
was observed on a nightly basis between 2005 November 25 and
2006 May 20 whenever weather conditions permitted.
We obtained seven spectra spanning 37 days with the CfA digital
speedometer (DS), mounted on the FLWO 1.5m telescope. Using the High
Resolution Echelle Spectrometer (HIRES) instrument on the Keck I
telescope located on Mauna Kea, Hawaii, we obtained 30 exposures,
between 2008 March 22 and 2009 June 5.
We observed seven transit events of HAT-P-13 with the KeplerCam CCD on
the FLWO 1.2m telescope between 2008 April 24 and 2009 May 8. All
observations were carried out in the i band, and the typical exposure
time was 15s.
Objects:
------------------------------------------------------
RA (2000) DE Designation(s)
------------------------------------------------------
08 39 31.8 +47 21 07 HAT-P-13 = GSC 3416-00543
------------------------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table2.dat 41 3719 Photometry follow-up of HAT-P-13
--------------------------------------------------------------------------------
See also:
J/A+A/523/A84 : Transit light curves of HAT-P-13b (Szabo+, 2010)
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 13 F13.5 d BJD Baricentric Julian Date
15- 22 F8.5 mag imag Differential, EPD and TFA corrected, i-band
magnitude (1)
24- 30 F7.5 mag e_imag The 1σ error in imag
32- 39 F8.5 mag Omag Original, not TFA and EPD corrected, i-band
differential magnitude
41 A1 --- --- [i] Filter used in mag (i)
--------------------------------------------------------------------------------
Note (1): The out-of-transit level has been subtracted. These magnitudes
have been subjected to the EPD (external parameter decorrelation
technique; see Bakos et al. 2010ApJ...710.1724B 2010ApJ...710.1724B) and TFA (trend
filtering algorithm; see Kovacs et al. 2005MNRAS.356..557K 2005MNRAS.356..557K) procedures
(in "ELTG" mode), carried out simultaneously with the transit fit.
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 29-Dec-2011