2011AJ....141...63W


Query : 2011AJ....141...63W

2011AJ....141...63W - Astron. J., 141, 63 (2011/February-0)

Orbital orientations of exoplanets: HAT-P-4b is prograde and HAT-P-14b is retrograde.

WINN J.N., HOWARD A.W., JOHNSON J.A., MARCY G.W., ISAACSON H., SHPORER A., BAKOS G.A., HARTMAN J.D., HOLMAN M.J., ALBRECHT S., CREPP J.R. and MORTON T.D.

Abstract (from CDS):

We present observations of the Rossiter-McLaughlin effect for two exoplanetary systems, revealing the orientations of their orbits relative to the rotation axes of their parent stars. HAT-P-4b is prograde, with a sky-projected spin-orbit angle of λ = -4.9±11.9 deg. In contrast, HAT-P-14b is retrograde, with λ = 189.1±5.1 deg. These results conform with a previously noted pattern among the stellar hosts of close-in giant planets: hotter stars have a wide range of obliquities and cooler stars have low obliquities. This, in turn, suggests that three-body dynamics and tidal dissipation are responsible for the short-period orbits of many exoplanets. In addition, our data revealed a third body in the HAT-P-4 system, which could be a second planet or a companion star.

Abstract Copyright:

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

VizieR on-line data: <Available at CDS (J/AJ/141/63): table1.dat table2.dat>

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 - 2022
#notes
1 HAT-P-13 * 08 39 31.8072358440 +47 21 07.273799280   11.15 10.42 10.40   G4 123 2
2 HD 80606 PM* 09 22 37.5768032712 +50 36 13.435326684   9.78 9.00     G8V 305 2
3 BD+36 2593 * 15 19 57.9203617176 +36 13 46.738078788   11.83 11.12     F 95 1
4 BD+36 2593b Pl 15 19 57.9205371377 +36 13 46.737977732           ~ 70 1
5 BD+38 2917 * 17 20 27.8781604680 +38 14 31.908984936   10.41 9.99     F5V 55 1
6 BD+38 2917b Pl 17 20 27.8782981532 +38 14 31.909663582           ~ 58 1
7 Kepler-9 Ro* 19 02 17.7544327200 +38 24 03.176851896     13.9 14.09   G2 177 1
8 NAME V672 Lyr b Pl 19 04 09.8516024106 +36 37 57.445911611           ~ 319 1
9 BD+47 2846 Er* 19 28 59.3538826128 +47 58 10.217007804   10.97 10.48     F6V 281 2
10 BD+47 2936 EB* 19 50 50.2472976936 +48 04 51.101390496       8.8   K4V 256 2
11 WASP-4 PM* 23 34 15.0857248317 -42 03 41.047972591   13.51 12.48 11.9   G7V 149 1
12 CD-35 16019 PM* 23 59 36.0711872328 -35 01 52.923618408   10.49 9.87 9.91   G6 94 0

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2022.07.07-13:17:40

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