2017ApJ...835..200K


Query : 2017ApJ...835..200K

2017ApJ...835..200K - Astrophys. J., 835, 200-200 (2017/February-1)

Characterization of the Wolf 1061 planetary system.

KANE S.R., VON BRAUN K., HENRY G.W., WATERS M.A., BOYAJIAN T.S. and MANN A.W.

Abstract (from CDS):

A critical component of exoplanetary studies is an exhaustive characterization of the host star, from which the planetary properties are frequently derived. Of particular value are the radius, temperature, and luminosity, which are key stellar parameters for studies of transit and habitability science. Here we present the results of new observations of Wolf 1061, known to host three super-Earths. Our observations from the Center for High Angular Resolution Astronomy interferometric array provide a direct stellar radius measurement of 0.3207 ± 0.0088 R, from which we calculate the effective temperature and luminosity using spectral energy distribution models. We obtained 7 yr of precise, automated photometry that reveals the correct stellar rotation period of 89.3 ± 1.8 days, finds no evidence of photometric transits, and confirms that the radial velocity signals are not due to stellar activity. Finally, our stellar properties are used to calculate the extent of the Habitable Zone (HZ) for the Wolf 1061 system, for which the optimistic boundaries are 0.09-0.23 au. Our simulations of the planetary orbital dynamics show that the eccentricity of the HZ planet oscillates to values as high as ∼0.15 as it exchanges angular momentum with the other planets in the system.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): astrobiology - planetary systems - stars: individual: Wolf 1061 - techniques: radial velocities - techniques: radial velocities

Simbad objects: 15

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Number of rows : 15
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 K2-3d Pl 11 29 20.3917940095 -01 27 17.279810476           ~ 42 0
2 NAME Proxima Centauri b Pl 14 29 42.9451234609 -62 40 46.170818907           ~ 320 0
3 * 50 Lib HB* 16 00 47.6323225512 -08 24 40.889775888   5.557 5.526     A0V 74 0
4 HD 146254 V* 16 15 51.4951281264 -14 50 56.815488096   6.165 6.083     A0III 48 0
5 HD 147753 * 16 24 03.8654378088 -11 01 25.075887024   8.08 7.61     F2V 23 0
6 BD-12 4523d Pl 16 30 18.0582010683 -12 39 45.323235188           ~ 17 0
7 BD-12 4523c Pl 16 30 18.0582010683 -12 39 45.323235188           ~ 18 0
8 BD-12 4523b Pl 16 30 18.0582010683 -12 39 45.323235188           ~ 19 0
9 BD-12 4523 BY* 16 30 18.0583947383 -12 39 45.321217732 12.829 11.638 10.072 8.917 7.421 M3V 294 0
10 HD 148968 * 16 32 08.0838375024 -12 25 53.906470248   7.10 6.98     A0V 25 0
11 HD 149013 PM* 16 32 38.1186554904 -15 59 14.924479956   7.54 7.02     F8V 33 0
12 HD 150177 PM* 16 39 39.1296604152 -09 33 16.512558300   6.794 6.332     F6V 152 0
13 HD 153229 * 16 58 41.5612101960 -14 52 10.826185368   6.848 6.466     F3IV/V 35 0
14 Kepler-69c Pl 19 33 02.6304618239 +44 52 08.020270128           ~ 38 1
15 Kepler-186f Pl 19 54 36.6536205214 +43 57 18.025893926           ~ 73 0

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2023.01.27-15:16:26

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