Long period planets in hot Jupiter systems Marion Neveu-VanMalle - PowerPoint PPT Presentation

Long period planets in hot Jupiter systems Marion Neveu-VanMalle D. Queloz, D. Anderson, D. Brown, A. Collier Cameron, L. Delrez, R. Díaz, M. Gillon, C. Hellier, E. Jehin, T. Lister, F. Pepe, P. Rojo, D. Ségransan, A. Triaud, O. Turner, S. Udry

Only 5 hot Jupiters known with a “close” companion Hat-P 46 HIP 14810 Ups And Kepler 424 Hat-P 13

Survey Radial velocities follow-up of the Southern WASP hot Jupiter hosts since 2008 with CORALIE in La Silla > 100 targets observed between 2 and 8 years 90 targets observed > 3 years

WASP-47

WASP-47 P b = 4.16 d M b = 1.13 ± 0.06 M Jup P c = 572 ± 7 d M c sin i = 1.24 ± 0.22 M Jup e c = 0.13 ± 0.10

WASP-47

WASP-47

WASP-41

WASP-41 – activity or planet? . . 0.8 Normalized power 0.6 0.4 0.2 0.0 2. 5. 10.0 20. 50. 100.0 200. 500. 1000. . . Period [days] . . 0.4 Normalized power 0.3 0.2 0.1 0.0 2. 5. 10.0 20. 50. 100.0 200. 500. 1000. . . Period [days]

WASP-41 is chromospherically active Sp. type: G8 <log R’ HK > = − 4.48 P rot ≈ 18 days Maxted et al. 2011

Measuring the H α emission Cincunegui et al. 2007 Gomes da Silva et al. 2014 : H α correlated with Ca II (H&K) when log R’ HK ≥ − 4.7

WASP-41 Detection of magnetic cycle?

Activity similar to CoRoT-7 Sp. type: K0 <log R’ HK > = − 4.62

WASP-41 Additional activity-related signals? 0.30 P rot Normalized power 0.25 0.20 H α 0.15 0.10 0.05 0.00 2. 5. 10.0 20. 50. 100.0 200. 500. 1000. . . Period [days] 0.35 1 year Normalized power 0.30 0.25 0.20 FWHM 0.15 0.10 0.05 0.00 2. 5. 10.0 20. 50. 100.0 200. 500. 1000. . . Period [days]

WASP-41 P b = 3.05 d M b = 0.94 ± 0.05 M Jup P c = 421 d ± 2 M c sin i = 3.18 ± 0.20 M Jup e c = 0.29 ± 0.02

WASP-41 Weak evidence for a misaligned planet

Possible 3 rd companion? Sp. type: K0 log R’ HK ≈ -4.43 M sin i ≈ 0.8 M Jup P ≈ 500 d

Possible 3 rd companion? Δ H α Δ FWHM [m/s]

Possible 3 rd companion? Δ H α P rot

Possible 3 rd companion? M sin i ≈ 0.8 M Jup P ≈ 500 d

And a 4 th ? Long period planet or magnetic cycle? Sp. type: F5 P ≈ 1400 days < log R’ HK > = − 4.76 v sin i = 18 km s -1

And a 4 th ? Long period planet or magnetic cycle? Δ H α

And a 4 th ? Long period planet or magnetic cycle? P b = 4.95 days M b = 1.05 M Jup P c = 1355 days M c sin i = 2.67 M jup e = 0.2

Hot Jupiters from RV surveys in multiple systems ~13% of the HJ discovered by RV

Hot Jupiters in multiple systems ~2% of the HJ discovered by transits

Hot Jupiters in multiple systems ~10% of the HJ in the WASP sample