2021ApJ...916L...8H

Query : 2021ApJ...916L...8H

2021ApJ...916L...8H - Astrophys. J., 916, L8-L8 (2021/July-3)

Observational consequences of shallow-water magnetohydrodynamics on hot Jupiters.

HINDLE A.W., BUSHBY P.J. and ROGERS T.M.

Abstract (from CDS):

We use results of shallow-water magnetohydrodynamics to place estimates on the minimum magnetic field strengths required to cause atmospheric wind variations (and therefore westward-venturing hotspots) for a data set of hot Jupiters (HJs), including HAT-P-7b, CoRoT-2b, Kepler-76, WASP-12b, and WASP-33b, on which westward hotspots have been observationally inferred. For HAT-P-7b and CoRoT-2b our estimates agree with past results; for Kepler-76b we find that the critical dipolar magnetic field strength, over which the observed wind variations can be explained by magnetism, lies between 4 G and 19 G; for WASP-12b and WASP-33b westward hotspots can be explained by 1 G and 2 G dipolar fields, respectively. Additionally, to guide future observational missions, we identify 61 further HJs that are likely to exhibit magnetically driven atmospheric wind variations and predict these variations are highly likely in ∼40 of the hottest HJs.

Abstract Copyright: © 2021. The American Astronomical Society. All rights reserved.

Journal keyword(s): Magnetohydrodynamics - Astrophysical fluid dynamics - Hot Jupiters - Exoplanet dynamics - Exoplanet atmospheres - Exoplanet atmospheric variability

Simbad objects: 67

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Number of rows : 67
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 HATS-68b Pl 01 00 01.4133027504 -58 54 17.120877948           ~ 16 0
2 WASP-187b Pl 01 09 53.9655651816 +25 40 54.105521772           ~ 10 0
3 BD+01 316b Pl 01 46 31.8575937456 +02 42 02.030065560           ~ 302 0
4 HAT-P-60b Pl 01 53 07.7732565840 +52 03 14.020237332           ~ 9 0
5 BD+00 316b Pl 01 57 03.2039481048 +00 45 31.875052896           ~ 33 1
6 HAT-P-32b Pl 02 04 10.2774374568 +46 41 16.212315084           ~ 198 1
7 HD 15082b Pl 02 26 51.0582618096 +37 33 01.736482032           ~ 403 1
8 CD-25 1737b Pl 04 07 45.8606793528 -25 12 31.231048320           ~ 9 0
9 WASP-78b Pl 04 15 01.5042985272 -22 06 59.103350532           ~ 55 1
10 WASP-159b Pl 04 32 32.7558055320 -38 58 05.952886860           ~ 14 0
11 CPD-64 356b Pl 04 35 50.3301268152 -64 01 37.333851168           ~ 49 0
12 BD+01 828b Pl 04 50 38.5587679752 +01 53 38.102222400           ~ 26 0
13 HD 287325b Pl 04 58 12.5627969184 +09 59 52.804564656           ~ 57 0
14 K2-260b Pl 05 07 28.1589099864 +16 52 03.795017016           ~ 15 0
15 WASP-12b Pl 06 30 32.7966092352 +29 40 20.263502460           ~ 847 1
16 TOI-640b Pl 06 38 56.3073574680 -36 38 46.145776488           ~ 15 0
17 HATS-40b Pl 06 42 17.1043971024 -29 46 36.495180012           ~ 14 0
18 CoRoT-21b Pl 06 44 12.6302250707 -00 17 56.987010804           ~ 22 2
19 CoRoT-1b Pl 06 48 19.1723766840 -03 06 07.710745140           ~ 187 1
20 CD-38 3220b Pl 07 10 24.0604565856 -39 05 50.571250476           ~ 421 0
21 CD-42 3043b Pl 07 13 12.3537608448 -42 24 35.116644168           ~ 40 0
22 HAT-P-33b Pl 07 32 44.2173520776 +33 50 06.115051104           ~ 59 1
23 HAT-P-69b Pl 08 42 01.3562355288 +03 42 38.021676300           ~ 23 0
24 WASP-142b Pl 09 22 01.5337536000 -23 56 46.205484900           ~ 21 0
25 HATS-64b Pl 09 37 09.0300678576 -29 48 01.576854252           ~ 10 0
26 HATS-26b Pl 09 39 42.4487667264 -28 35 08.099578572           ~ 23 0
27 HD 85628b Pl 09 50 19.2009107592 -66 06 49.897904652           ~ 36 0
28 WASP-19b Pl 09 53 40.0765648584 -45 39 33.057187596           ~ 423 1
29 HAT-P-66b Pl 10 02 17.4467690520 +53 57 03.200658624           ~ 20 0
30 NAME BD+26 2091Ab Pl 10 28 15.0126214104 +25 34 23.479759128           ~ 29 0
31 HD 93396b Pl 10 46 49.7401839144 -09 23 56.495447700           ~ 70 0
32 NAME OGLE-TR-132b Pl 10 50 34.5943868112 -61 57 26.138690064           ~ 105 1
33 HATS-56b Pl 12 00 39.6302264040 -45 47 57.995832228           ~ 13 0
34 HATS-67b Pl 12 00 50.1182153184 -46 08 11.125770792           ~ 15 0
35 CD-52 4998b Pl 12 21 17.9260543632 -52 50 27.000206304           ~ 32 0
36 HATS-31b Pl 12 46 48.6784273656 -24 25 38.569087308           ~ 14 0
37 CD-46 8537b Pl 13 17 44.1225665448 -47 14 15.275889996           ~ 17 0
38 BD+60 1538b Pl 14 26 05.7571276200 +59 26 39.289731216           ~ 20 0
39 HD 133112b Pl 15 02 44.8678907928 -03 01 52.986571896           ~ 144 0
40 HD 134004b Pl 15 09 04.8933581184 -42 42 17.789374620           ~ 59 0
41 WASP-92b Pl 16 26 46.0986948120 +51 02 27.893426496           ~ 23 0
42 HATS-24b Pl 17 55 33.7675549584 -61 44 50.366686164           ~ 24 0
43 BD+10 3472b Pl 18 18 58.4250287592 +10 35 50.129564460           ~ 33 0
44 WASP-153b Pl 18 37 02.9816122296 +40 01 07.281954084           G0 24 0
45 Qatar 10b Pl 18 57 46.5534110208 +69 34 15.067689528           ~ 12 0
46 Kepler-91b Pl 19 02 41.4978337152 +44 07 00.239709792           ~ 88 1
47 NAME BD+46 2629Ab Pl 19 07 53.1397066992 +46 52 05.922122844           ~ 181 1
48 HATS-9b Pl 19 23 14.4313681872 -20 09 58.848967836           ~ 27 0
49 WASP-48b Pl 19 24 38.9614451424 +55 28 23.332107108           ~ 65 1
50 CoRoT-2b Pl 19 27 06.4944378024 +01 23 01.359897468           ~ 256 1
51 BD+47 2846b Pl 19 28 59.3538826128 +47 58 10.217007804           ~ 415 1
52 Kepler-435b Pl 19 29 08.9490159624 +43 11 50.159878764           ~ 43 0
53 Kepler-76b Pl 19 36 46.1090731584 +39 37 08.340641364           ~ 61 1
54 Kepler-76 EB* 19 36 46.1090731584 +39 37 08.340641364           ~ 49 1
55 Kepler-1658b Pl 19 37 25.5732756048 +38 56 50.518200048           ~ 52 0
56 HATS-35b Pl 19 46 45.1812364536 -63 33 56.136897468           ~ 20 0
57 HD 340099b Pl 20 21 45.9296022840 +26 41 33.605958552           ~ 28 0
58 HAT-P-23b Pl 20 24 29.7234392904 +16 45 43.811510112           ~ 81 1
59 WASP-88b Pl 20 38 02.6869030656 -48 27 43.424304480           ~ 18 1
60 WASP-90b Pl 21 02 07.6772028864 +07 03 22.517627472           ~ 19 0
61 HAT-P-65b Pl 21 03 37.3130781288 +11 59 21.819803748           ~ 29 0
62 HD 201033b Pl 21 04 48.8646514344 +55 35 16.514573928           ~ 31 0
63 HD 201585b Pl 21 10 12.3723073896 +10 44 19.949472816           ~ 83 0
64 HD 202772Ab Pl 21 18 47.8741665264 -26 36 58.053779532           ~ 28 0
65 WASP-114b Pl 21 50 39.7729812408 +10 27 46.713163356           ~ 16 0
66 HD 208180b Pl 21 55 04.2428047728 -22 36 45.287047764           ~ 12 0
67 Qatar 7b Pl 23 54 03.6389671584 +37 01 18.584863428           ~ 9 0

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