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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
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)
(End) Patricia Vannier [CDS] 19-Apr-2010
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