2010A&A...518A..25G

Query : 2010A&A...518A..25G

2010A&A...518A..25G - Astronomy and Astrophysics, volume 518, A25-25 (2010/7-2)

The Spitzer search for the transits of HARPS low-mass planets. I. No transit for the super-Earth HD 40307b.

GILLON M., DEMING D., DEMORY B.-O., LOVIS C., SEAGER S., MAYOR M., PEPE F., QUELOZ D., SEGRANSAN D., UDRY S., DELMELLE S. and MAGAIN P.

Abstract (from CDS):

We used Spitzer and its IRAC camera to search for the transit of the super-Earth HD 40307b. The hypothesis that the planet transits could not be firmly discarded from our first photometric monitoring of a transit window because of the uncertainty coming from the modeling of the photometric baseline. To obtain a firm result, two more transit windows were observed and a global Bayesian analysis of the three IRAC time series and the HARPS radial velocities was performed. Unfortunately, the hypothesis that the planet transited during the observed phase window is firmly rejected, while the probability that the planet does transit but that the eclipse was missed by our observations is nearly negligible (0.26%).

Abstract Copyright: ∼

Journal keyword(s): binaries: eclipsing - planetary systems - stars: individual: HD 40307 - techniques: photometric

VizieR on-line data: <Available at CDS (J/A+A/518/A25): irac1.dat irac2.dat irac3.dat>

Simbad objects: 10

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Number of rows : 10
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 HD 40307 PM* 05 54 04.2405000288 -60 01 24.493007640 8.814 8.097 7.147 6.597 6.119 K2.5V 262 1
2 HD 40307b Pl 05 54 04.2405000288 -60 01 24.493007640           ~ 53 1
3 HD 40307d Pl 05 54 04.2405000288 -60 01 24.493007640           ~ 38 1
4 HD 40307c Pl 05 54 04.2405000288 -60 01 24.493007640           ~ 37 1
5 CoRoT-7b Pl 06 43 49.4690164104 -01 03 46.826642700           ~ 402 1
6 Ross 905b Pl 11 42 11.0933350978 +26 42 23.650782778           ~ 810 1
7 NAME G 139-21b Pl 17 15 18.9339850845 +04 57 50.066612336           ~ 720 1
8 G 139-21 PM* 17 15 18.9339850845 +04 57 50.066612336       14.394   M4.5V 325 1
9 HD 189733b Pl 20 00 43.7129433648 +22 42 39.073143456           ~ 1434 1
10 HD 209458b Pl 22 03 10.7727465312 +18 53 03.549393384           ~ 1858 1

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