2009A&A...498L...5M


C.D.S. - SIMBAD4 rel 1.7 - 2020.02.21CET11:09:17

2009A&A...498L...5M - Astronomy and Astrophysics, volume 498, L5-8 (2009/4-4)

Photometric and spectroscopic detection of the primary transit of the 111-day-period planet HD80606b.

MOUTOU C., HEBRARD G., BOUCHY F., EGGENBERGER A., BOISSE I., BONFILS X., GRAVALLON D., EHRENREICH D., FORVEILLE T., DELFOSSE X., DESORT M., LAGRANGE A.-M., LOVIS C., MAYOR M., PEPE F., PERRIER C., PONT F., QUELOZ D., SANTOS N.C., SEGRANSAN D., UDRY S. and VIDAL-MADJAR A.

Abstract (from CDS):

We report the detection of the primary transit of the extra-solar planet HD80606b, thanks to photometric and spectroscopic observations performed at the Observatoire de Haute-Provence, simultaneously with the CCD camera at the 120-cm telescope and the SOPHIE spectrograph on the 193-cm telescope. We observed the whole egress of the transit and partially its central part, in both datasets with the same timings. The ingress occurred before sunset so was not observed. The full duration of the transit was between 9.5 and 17.2h. The data allows the planetary radius to be measured (Rp=0.9±0.10RJup) and other parameters of the system to be refined. Radial velocity measurements show the detection of a prograde Rossiter-McLaughlin effect, and provide a hint of a spin-orbit misalignment. If confirmed, this misalignment would corroborate the hypothesis that HD80606b owes its unusual orbital configuration to Kozai migration. HD80606b is by far the transiting planet on the longest period detected today. Its unusually small radius reinforces the observed relationship between the planet radius and the incident flux received from the star and opens new questions for theory. Orbiting a bright star (V=9), it opens opportunities for numerous follow-up studies.

Abstract Copyright:

Journal keyword(s): stars: planetary systems - techniques: photometric - techniques: radial velocities - stars: individual: HD80606

VizieR on-line data: <Available at CDS (J/A+A/498/L5): rv.dat phot.dat>

Simbad objects: 8

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Number of rows : 8

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 HD 17156b Pl 02 49 44.4866941172 +71 45 11.632197644           ~ 156 1
2 HD 17156 PM* 02 49 44.4866941172 +71 45 11.632197644   8.78 8.16     G0 144 2
3 XO-3 * 04 21 52.7044170433 +57 49 01.892074012   10.27 9.85     F5V 129 2
4 HD 80606 PM* 09 22 37.5769478105 +50 36 13.434928660   9.78 9.00     G5 286 2
5 HD 80606b Pl 09 22 37.5769478105 +50 36 13.434928660           ~ 268 1
6 HD 80607 PM* 09 22 39.7367015092 +50 36 13.952617706   9.937 9.070     G5 80 2
7 HD 147506 * 16 20 36.3579144486 +41 02 53.109043943   9.15 8.69     F8V 137 2
8 HD 147506b Pl 16 20 36.3579144486 +41 02 53.109043943           ~ 208 1

    Equat.    Gal    SGal    Ecl

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2020.02.21-11:09:17

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