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

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Sep 07, 2023 189 likes •461 views

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

SLIDE 1

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

SLIDE 2

Only 5 hot Jupiters known with a “close” companion

Ups And HIP 14810 Hat-P 46 Hat-P 13 Kepler 424

SLIDE 3

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

SLIDE 4

WASP-47

SLIDE 5

WASP-47

Pb = 4.16 d Mb = 1.13 ± 0.06 MJup Pc = 572 ± 7 d Mcsini = 1.24 ± 0.22 MJup ec = 0.13 ± 0.10

SLIDE 6

WASP-47

SLIDE 7

WASP-47

SLIDE 8

WASP-41

SLIDE 9

WASP-41 – activity or planet?

10.0 100.0 1000. 2. 20. 200. 5. 50. 500. 0.0 0.2 0.4 0.6 0.8

Period [days] Normalized power . . . .

10.0 100.0 1000. 2. 20. 200. 5. 50. 500. 0.0 0.1 0.2 0.3 0.4

Period [days] Normalized power . . . .

SLIDE 10

WASP-41 is chromospherically active

<log R’HK> = − 4.48 Maxted et al. 2011 Prot ≈ 18 days

Sp. type: G8

SLIDE 11

Measuring the Hα emission

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

SLIDE 12

WASP-41 Detection of magnetic cycle?

SLIDE 13

Activity similar to CoRoT-7

<log R’HK> = − 4.62

Sp. type: K0

SLIDE 14

WASP-41 Additional activity-related signals?

10.0 100.0 1000. 2. 20. 200. 5. 50. 500. 0.00 0.05 0.10 0.15 0.20 0.25 0.30

Period [days] Normalized power . .

10.0 100.0 1000. 2. 20. 200. 5. 50. 500. 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35

Period [days] Normalized power . .

Prot 1 year Hα FWHM

SLIDE 15

WASP-41

Pc = 421 d ± 2 Mcsini = 3.18 ± 0.20 MJup ec = 0.29 ± 0.02 Pb =3.05 d Mb = 0.94 ± 0.05 MJup

SLIDE 16

WASP-41

Weak evidence for a misaligned planet

SLIDE 17

Possible 3rd companion?

log R’HK ≈ -4.43 Msini ≈ 0.8 MJup P ≈ 500 d

Sp. type: K0

SLIDE 18

Possible 3rd companion?

ΔHα ΔFWHM [m/s]

SLIDE 19

Possible 3rd companion?

ΔHα

Prot

SLIDE 20

Possible 3rd companion?

Msini ≈ 0.8 MJup P ≈ 500 d

SLIDE 21

P ≈ 1400 days <log R’HK> = − 4.76 v sini = 18 km s-1

And a 4th? Long period planet or magnetic cycle?

Sp. type: F5

SLIDE 22

ΔHα

And a 4th? Long period planet or magnetic cycle?

SLIDE 23

And a 4th? Long period planet or magnetic cycle?

Pb = 4.95 days Mb = 1.05 MJup Pc = 1355 days Mcsini = 2.67 Mjup e = 0.2

SLIDE 24

Hot Jupiters from RV surveys in multiple systems

~13% of the HJ discovered by RV

SLIDE 25

Hot Jupiters in multiple systems

~2% of the HJ discovered by transits

SLIDE 26

Hot Jupiters in multiple systems

~10% of the HJ in the WASP sample