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

Home

All issues

Volume 518 (July-August 2010)

A&A, 518 (2010) A25

Full HTML

Free Access

Table 1:

Median and 1- $\sigma$ limits of our posterior distributions for the parameters of the three planets orbiting around HD 40307.
Parameter	HD 40307b	HD 40307c	HD 40307d	Units
Jump parameters
Transit epoch T₀ - 2 450 000	$4770.78 \pm 0.11$	$4957.73 \pm 0.26$	$4946.02^{\rm +0.50}_{-0.51}$	HJD
Orbital period P	$4.31109^{\rm +0.00051}_{-0.00052}$	$9.6183 \pm 0.0024$	$20.4434^{\rm +0.0095}_{-0.0092}$	days
$e\cos{\omega}$	$0.009 \pm 0.060$	$0.031^{\rm +0.049}_{-0.048}$	$0.016^{\rm +0.050}_{-0.049}$
$e\sin{\omega}$	$0.038^{\rm +0.057}_{-0.059}$	$0.027^{\rm +0.050}_{-0.049}$	$0.048 \pm 0.042$
RV K₂	$3.22 \pm 0.19$	$5.09 \pm 0.25$	$7.05^{\rm +0.34}_{-0.33}$
Planet/star area ratio $(R_{\rm p}/R_{\rm s})^2$	$0.0022^{\rm +0.0015}_{-0.0011}$	-	-
$b'=a\cos{i}/R_\ast$	$7.3^{\rm +4.7}_{-4.3}$	-	-	R_*
Deduced parameters
RV K	$1.99 \pm 0.12$	$2.40 \pm 0.12$	$2.59 \pm 0.12$	m s^-1
Orbital semi-major axis a	$0.0477^{\rm +0.0012}_{-0.0013}$	$0.0815^{\rm +0.0020}_{-0.0021}$	$0.1348^{\rm +0.0033}_{-0.0035}$	AU
Orbital eccentricity e	$0.077^{\rm +0.047}_{-0.038}$	$0.068^{\rm +0.042}_{-0.034}$	$0.072^{\rm +0.040}_{-0.034}$
Argument of periastron $\omega$	$78^{\rm +82}_{-73}$	$37^{\rm +60}_{-74}$	$72^{\rm +57}_{-50}$	deg
$M_{\rm p} \sin{i}$	$4.27^{\rm +0.35}_{-0.33}$	$6.80^{\rm +049}_{-0.52}$	$9.28^{\rm +0.69}_{-0.63}$	$M_{\oplus}$
Orbital inclination i	$61^{\rm +17}_{-24}$	-	-	deg

Notes. Jump parameters are the model parameters that are randomly perturbed at each step of the MCMC.

Source LaTeX | All tables | In the text

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.