J/A+A/516/A95 Photometry and spectroscopy of HD 80606b (Hebrard+, 2010)
Observation of the full 12-hour-long transit of the exoplanet HD80606b.
Warm-Spitzer photometry and SOPHIE spectroscopy.
Hebrard G., Desert J.-M., Diaz R.F., Boisse I., Bouchy F.,
Lecavelier des Etangs A., Moutou C., Ehrenreich D., Arnold L., Bonfils X.,
Delfosse X., Desort M., Eggenberger A., Forveille T., Gregorio J.,
Lagrange A.-M., Lovis C., Pepe F., Perrier C., Pont F., Queloz D.,
Santerne A., Santos N.C., Segransan D., Sing D.K., Udry S., Vidal-Madjar A.
<Astron. Astrophys. 516, A95 (2010)>
=2010A&A...516A..95H 2010A&A...516A..95H
ADC_Keywords: Stars, variable ; Planets ; Radial velocities ; Photometry
Keywords: techniques: radial velocities - techniques: photometry -
stars: individual: HD80606
Abstract:
We present new observations of a transit of the 111.4-day-period
exoplanet HD80606b. Due to this long orbital period and to the
orientation of the eccentric orbit (e=0.9), the HD80606b's
transits last for about 12 hours. This makes practically impossible
the observation of a full transit from a given ground-based
observatory. Using the Spitzer Space Telescope and its IRAC camera on
the post-cryogenic mission, we performed a 19-hour-long photometric
observation of HD80606 that covers the full transit of 13-14 January
2010 as well as off-transit references immediately before and after
the event. We complement this photometric data by new spectroscopic
observations that we simultaneously performed with SOPHIE at
Haute-Provence Observatory. This provides radial velocity measurements
of the first half of the transit that was previously uncovered with
spectroscopy.
Description:
We obtained Spitzer Director's Discretionary Time (DDT program #540)
to observe the January 2010 transit of HD80606b.
The first half of the January 2010 transit of HD80606b was visible
from Europe so we managed to observe it with the SOPHIE spectrograph
at the 1.93-m telescope of Haute- Provence Observatory in South of
France.
Objects:
---------------------------------------------
RA (2000) DE Designation(s)
---------------------------------------------
09 22 37.6 +50 36 13 HD80606 = HIP 45982
---------------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
spitzer.dat 35 31767 Spitzer/IRAC photometry of HD80606 (as plotted
in Fig. 2, middle panel of the paper)
sophie.dat 33 105 OHP/SOPHIE radial velocity measurements of
HD80606 and uncertainties (as plotted in
Figs. 3 and 7 of the paper)
--------------------------------------------------------------------------------
See also:
J/A+A/498/L5 : Photometry and spectroscopy of HD 80606b (Moutou+, 2009)
J/A+A/375/L27 : HD 80606b, a planet on an extremely elongated orbit (Naef 2001)
Byte-by-byte Description of file: spitzer.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 16 F16.8 d HJD Heliocentric Julian date
22- 35 E14.9 --- Flux Normalized photometry binned per 5 frames
--------------------------------------------------------------------------------
Byte-by-byte Description of file: sophie.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 13 F13.5 d BJD Baricentric Julian date
19- 25 F7.5 km/s RV Radial velocity
27- 33 F7.5 km/s e_RV rms uncertainty on RV
--------------------------------------------------------------------------------
Acknowledgements:
Guillaume Hebrard, hebrard(at)iap.fr
(End) Patricia Vannier [CDS] 19-Apr-2010