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Table 2
Median values and the 1-σ errors of the marginalized posterior PDF obtained from the MCMC analysis of all new data plus the radial velocities and lightcurves published by Hebb et al. (2010), Anderson et al. (2010) and Hellier et al. (2011).
WASP-19 | ||
Jump parameters | ||
Transit depth | ΔF = (Rp/R∗)2 | 0.02018 ± 0.00021 |
b′ = a ∗ cos(ip)[R∗] | 0.649 ± 0.012 | |
Transit duration | T14[d] |
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Time of midtransit | T[0] − 2 450 000[HJD] | 6029.59204 ± 0.00013 |
Period | P[d] | 0.7888390 ± 2 × 10-7 |
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238.1 ± 2.7 | |
z′-band occultation depth | ΔFoccz′[ppm] | 352 ± 116 |
NB1190 occultation depth | ΔFoccNB1190[ppm] |
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H-band occultation depth | ΔFoccH[ppm] |
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0.053 ± 0.020 | |
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−0.27 ± 0.23 | |
c1,r′ = 2u1,r + u2,r | 1.123 ± 0.040 | |
c2,r′ = u1,r − 2u2,r | − 0.052 ± 0.037 | |
c1,IC = 2u1,IC + u2,IC | 0.903 ± 0.034 | |
c2,IC = u1,IC − 2u2,IC | −0.173 ± 0.025 | |
c1,I + z′ = 2u1,I + z′ + u2,I + z′ | 0.840 ± 0.050 | |
c2,I + z′ = u1,I + z′ − 2u2,I + z′ | −0.251 ± 0.053 | |
c1,z′ = 2u1,z′ + u2,z′ | 0.831 ± 0.029 | |
c2,z′ = u1,z′ − 2u2,z′ | −0.218 ± 0.021 | |
Deduced parameters | ||
Radial velocity semi-amplitude | K[m s-1] | 257.7 ± 2.9 |
Planet radius | Rp[RJ] | 1.376 ± 0.046 |
Planet mass | Mp[MJ] | 1.165 ± 0.068 |
Planet density | ρp[ρJ] |
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Eccentricity | e |
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Argument of periastron | ω[deg] |
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Semi-major axis | a[AU] | 0.01653 ± 0.00046 |
Normalized semi-major axis | a/R∗ | 3.573 ± 0.046 |
Inclination | ip[deg] | 79.54 ± 0.33 |
Transit impact parameter | b tr | 0.645 ± 0.012 |
Occultation impact parameter | b occ | 0.652 ± 0.015 |
Time of midoccultation | Tocc − 2 450 000[HJD] | 6030.77766 ± 0.00088 |
Projected spin-orbit angle | β[deg] |
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Planet equilibrium temperaturea | Teq[K] | 2058 ± 40 |
Planet surface gravity | log gp[cgs] | 3.184 ± 0.015 |
Stellar mass | M∗[M⊙] |
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Stellar radius | R∗[R⊙] | 0.994 ± 0.031 |
Stellar mean density | ρ∗[ρ⊙] |
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1st quadratic LD coeff., r′ band | u 1,r′ | 0.439 ± 0.020 |
2nd quadratic LD coeff., r′ band | u 2,r′ | 0.246 ± 0.015 |
1st quadratic LD coeff, I + z′ band | u 1,I + z | 0.286 ± 0.026 |
2nd quadratic LD coeff., I + z′ band | u 2,I + z | 0.268 ± 0.019 |
1st quadratic LD coeff., IC band | u 1,IC | 0.326 ± 0.016 |
2nd quadratic LD coeff., IC band | u 2,IC | 0.2497 ± 0.0094 |
1st quadratic LD coeff., z′ band | u 1,z′ | 0.289 ± 0.014 |
2nd quadratic LD coeff., z′ band | u 2,z′ | 0.2536 ± 0.0077 |
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