2015ApJ...812L..11S


C.D.S. - SIMBAD4 rel 1.7 - 2021.08.03CEST12:18:08

2015ApJ...812L..11S - Astrophys. J., 812, L11 (2015/October-2)

A low stellar obliquity for WASP-47, a compact multiplanet system with a hot Jupiter and an ultra-short period planet.

SANCHIS-OJEDA R., WINN J.N., DAI F., HOWARD A.W., ISAACSON H., MARCY G.W., PETIGURA E., SINUKOFF E., WEISS L., ALBRECHT S., HIRANO T. and ROGERS L.

Abstract (from CDS):

We have detected the Rossiter-Mclaughlin effect during a transit of WASP-47b, the only known hot Jupiter with close planetary companions. By combining our spectroscopic observations with Kepler photometry, we show that the projected stellar obliquity is λ = 0°±24°. We can firmly exclude a retrograde orbit for WASP-47b, and rule out strongly misaligned prograde orbits. Low obliquities have also been found for most of the other compact multiplanet systems that have been investigated. The Kepler-56 system, with two close-in gas giants transiting their subgiant host star with an obliquity of at least 45°, remains the only clear counterexample.

Abstract Copyright:

Journal keyword(s): planet-star interactions - planetary systems - planets and satellites: formation - stars: rotation

Simbad objects: 12

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Number of rows : 12

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 * rho01 Cnc PM* 08 52 35.8113282132 +28 19 50.956901366 7.45 6.82   5.4   K0IV-V 1009 1
2 * rho01 Cnc e Pl 08 52 35.8113282132 +28 19 50.956901366           ~ 448 1
3 Kepler-30 Ro* 19 01 08.0746750853 +38 56 50.218666290   16.50   15.95 14.55 ~ 128 1
4 Kepler-25 Ro* 19 06 33.2143323702 +39 29 16.357969502   11.32 10.77 10.598   ~ 121 1
5 Kepler-50 Ro* 19 12 24.2129932892 +50 02 01.370843497   11.02 10.54     F5 94 1
6 BD+40 3638 Ro* 19 14 45.2919793492 +41 09 04.207327203   11.62 10.92     F6IV 99 1
7 Kepler-56 RG* 19 35 02.0013983772 +41 52 18.691751459           ~ 141 1
8 Kepler-487 Ro* 19 41 08.9282693020 +41 13 19.054569400   15.89 14.84 15.60 14.39 ~ 63 1
9 Kepler-89 Ro* 19 49 19.9344504805 +41 53 28.005888625           ~ 116 1
10 Kepler-18 Ro* 19 52 19.0688249829 +44 44 46.807526602       13.93   ~ 102 1
11 WASP-47b Pl 22 04 48.7262032385 -12 01 08.000987005           ~ 67 1
12 WASP-47 * 22 04 48.7262032385 -12 01 08.000987005     11.99 11.82   ~ 112 1

    Equat.    Gal    SGal    Ecl

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2021.08.03-12:18:08

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