2016A&A...593A...5D


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.05CEST10:52:49

2016A&A...593A...5D - Astronomy and Astrophysics, volume 593A, 5-5 (2016/9-1)

Radial velocity fitting challenge. I. Simulating the data set including realistic stellar radial-velocity signals.

DUMUSQUE X.

Abstract (from CDS):

Context. Stellar signals are the main limitation for precise radial-velocity (RV) measurements. These signals arise from the photosphere of the stars. The m/s perturbation created by these signals prevents the detection and mass characterization of small-mass planetary candidates such as Earth-twins. Several methods have been proposed to mitigate stellar signals in RV measurements. However, without precisely knowing the stellar and planetary signals in real observations, it is extremely difficult to test the efficiency of these methods.
Aims. The goal of the RV fitting challenge is to generate simulated RV data including stellar and planetary signals and to perform a blind test within the community to test the efficiency of the different methods proposed to recover planetary signals despite stellar signals.
Methods. In this first paper, we describe the simulation used to model the measurements of the RV fitting challenge. Each simulated planetary system includes the signals from instrumental noise, stellar oscillations, granulation, supergranulation, stellar activity, and observed and simulated planetary systems. In addition to RV variations, this simulation also models the effects of instrumental noise and stellar signals on activity observables obtained by HARPS-type high-resolution spectrographs, that is, the calcium activity index log (R'HK) and the bisector span and full width at half maximum of the cross-correlation function.
Results. We publish the 15 systems used for the RV fitting challenge including the details about the planetary systems that were injected into each of them.

Abstract Copyright: © ESO, 2016

Journal keyword(s): techniques: radial velocities - stars: oscillations - stars: activity - Sun: activity - Sun: faculae, plages - sunspots

VizieR on-line data: <Available at CDS (J/A+A/593/A5): sys1.dat-sys5.dat sys7.dat-sys15.dat sys1all.dat-sys5all.dat sys7all.dat-sys15all.dat>

Simbad objects: 23

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Number of rows : 23

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 HD 10180b Pl? 01 37 53.5773715933 -60 30 41.485438420           ~ 13 1
2 HD 10180g Pl 01 37 53.5773715933 -60 30 41.485438420           ~ 14 1
3 HD 10180e Pl 01 37 53.5773715933 -60 30 41.485438420           ~ 11 1
4 HD 10180d Pl 01 37 53.5773715933 -60 30 41.485438420           ~ 13 1
5 HD 10180h Pl 01 37 53.5773715933 -60 30 41.485438420           ~ 14 1
6 * tau Cet PM* 01 44 04.0834226 -15 56 14.926552 4.43 4.22 3.50 2.88 2.41 G8V 1091 1
7 * e Eri PM* 03 19 55.6509352 -43 04 11.217495 5.20 4.98 4.27 3.65 3.25 G6V 397 1
8 CoRoT-7b Pl 06 43 49.4690410679 -01 03 46.825797768           ~ 346 1
9 CoRoT-7 * 06 43 49.4690410679 -01 03 46.825797768   12.78 11.73 11.36 10.87 K0V 172 1
10 CoRoT-7c Pl 06 43 49.4690410679 -01 03 46.825797768           ~ 39 1
11 CoRoT-7d Pl? 06 43 49.4690410679 -01 03 46.825797768           ~ 12 1
12 HD 85512 PM* 09 51 07.0520306762 -43 30 10.021950881 9.963 8.83 7.651 6.934 6.319 K6Vk: 152 1
13 HD 85512b Pl 09 51 07.0520306762 -43 30 10.021950881           ~ 25 1
14 * alf Cen Bb err 14 39 35.06 -60 50 15.1           ~ 36 2
15 * alf Cen B PM* 14 39 35.06311 -60 50 15.0992 2.89 2.21 1.33     K1V 894 1
16 * alf Cen A SB* 14 39 36.49400 -60 50 02.3737 0.96 0.72 0.01     G2V 1138 0
17 BD-07 4003 BY* 15 19 26.8271336166 -07 43 20.190958776 13.403 11.76 10.560 9.461 8.911 M3V 533 2
18 HD 156384C PM* 17 18 58.8271844065 -34 59 48.612934284 12.96 11.79 10.22 10.05 8.82 M1.5V 163 1
19 Kepler-10 Ro* 19 02 43.0612302512 +50 14 28.700759378       11.00   G 160 1
20 Kepler-78 EB* 19 34 58.0139307295 +44 26 53.957326851   12.87 11.72     K2 50 1
21 HD 192310 PM* 20 15 17.3916558603 -27 01 58.713584596   6.63 5.723 5.98 8.74 K2+V 279 1
22 HD 192310b Pl 20 15 17.3916558603 -27 01 58.713584596           ~ 20 1
23 HD 192310c Pl 20 15 17.3916558603 -27 01 58.713584596           ~ 16 1

    Equat.    Gal    SGal    Ecl

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2020.07.05-10:52:49

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