2018AJ....156...82C


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.05CET17:53:28

2018AJ....156...82C - Astron. J., 156, 82-82 (2018/August-0)

Quantifying the observational effort required for the radial velocity characterization of TESS planets.

CLOUTIER R., DOYON R., BOUCHY F. and HEBRARD G.

Abstract (from CDS):

The Transiting Exoplanet Survey Satellite (TESS) will conduct a two-year wide-field survey searching for transiting planets around bright stars. Many TESS discoveries will be amenable to mass characterization via ground-based radial velocity measurements with any of a growing suite of existing and anticipated velocimeters in the optical and near-infrared. In this study we present an analytical formalism to compute the number of radial velocity (RV) measurements-and hence the total observing time-required to characterize RV planet masses with the inclusion of either a white or correlated noise activity model. We use our model to calculate the total observing time required to measure all TESS planet masses from the expected TESS planet yield while relying on our current understanding of the targeted stars, stellar activity, and populations of unseen planets that inform the expected RV precision. We also present specialized calculations applicable to a variety of interesting subsets of TESS planets including the characterization of 50 planets smaller than 4 Earth radii, which is expected to take as little as 60 nights of observation. However, the efficient RV characterization of such planets requires a priori knowledge of the "best" targets, which we argue can be identified prior to the conclusion of the TESS planet search based on our calculations. Our results highlight the comparable performance of optical and near-IR spectrographs for most planet populations except for Earths and temperate TESS planets, which are more efficiently characterized in the near-IR. Lastly, we present an online tool to the community to compute the total observing times required to detect any transiting planet using a user-defined spectrograph (RVFC; http://maestria.astro.umontreal.ca/rvfc).

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): methods: analytical - planets and satellites: detection - planets and satellites: fundamental parameters - techniques: radial velocities

VizieR on-line data: <Available at CDS (J/AJ/156/82): table2.dat table3.dat table5.dat table6.dat>

Simbad objects: 36

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Number of rows : 36

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 WASP-1 V* 00 20 40.0746033057 +31 59 23.953709844   12.06 11.31     F7V 106 1
2 G 268-38 PM* 00 44 59.3314993038 -15 16 17.543124886     14.150 13.801   M4.5 87 0
3 HD 10069 * 01 37 25.0335097438 -45 40 40.376513381   9.74 9.30     F6IV/V 165 1
4 HAT-P-29 * 02 12 31.4784785872 +51 46 43.562095527   12.30 11.83 11.82   ~ 24 1
5 WASP-11 ** 03 09 28.5427034552 +30 40 24.868785834   12.58 11.57 11.42   K3V 71 1
6 CoRoT-7 * 06 43 49.4690410679 -01 03 46.825797768   12.78 11.73 11.36 10.87 K0V 176 1
7 HAT-P-24 * 07 15 18.0194123517 +14 15 45.409653547   12.21 11.76 11.71   F8 35 1
8 HAT-P-33 * 07 32 44.2170736940 +33 50 06.118002888   11.66 11.03 11.10   ~ 29 1
9 XO-5 * 07 46 51.9615004947 +39 05 40.460564688     12.1 11.95   G8V 41 1
10 BD+50 1471 PM* 07 48 06.4726006390 +50 13 32.921121328   12.002 11.138 10.669 10.243 G9V 142 1
11 WASP-19 LP* 09 53 40.0764883458 -45 39 33.055979403   13.05 12.31 12.12 11.35 G8V 141 1
12 L 320-124 PM* 10 14 51.7783473599 -47 09 24.189733387       13.067   M4 77 0
13 HD 233731 PM* 10 22 43.5924378707 +50 07 42.063457528   10.62 9.76 9.44   G5 33 1
14 CD-23 9677 PM* 11 01 35.8978900078 -23 51 38.384687448   11.05 10.28 10.21 9.66 ~ 40 1
15 HD 97658 PM* 11 14 33.1613362847 +25 42 37.391912066 9.049 8.569 7.714 7.259 6.835 K1V 136 1
16 K2-18 PM* 11 30 14.5176249117 +07 35 18.257210626   15.01 13.50 13.24   dM2.5 53 0
17 HAT-P-12 PM* 13 57 33.4668502171 +43 29 36.602501754   12.6 12.84     K5 62 1
18 HAT-P-26 PM* 14 12 37.5329989220 +04 03 36.117671696   12.33 11.76 11.56   K1 35 1
19 WASP-16 * 14 18 43.9226513410 -20 16 31.842223819   12.51 11.29 11.00 10.49 G3V 51 1
20 WASP-24 * 15 08 51.7366806893 +02 20 35.964406086   12.00 11.22 11.43   F8-9 40 1
21 BD+36 2593 * 15 19 57.9205371377 +36 13 46.737977732   11.83 11.12     F 87 1
22 HD 149026 PM* 16 30 29.6184841164 +38 20 50.310893575   8.75 8.14     G0IV 200 1
23 HAT-P-18 * 17 05 23.1475847690 +33 00 44.939145027   11.9   12.61   K2V 32 1
24 G 139-21 PM* 17 15 18.9337265994 +04 57 50.064695682       14.394   M4.5V 253 1
25 TrES-4 Pl 17 53 13.0490781575 +37 12 42.586106196           ~ 185 2
26 NAME Barnard's star BY* 17 57 48.4997994034 +04 41 36.111354228 12.497 11.24 9.511 8.298 6.741 M4V 681 2
27 BD+35 3293 V* 18 34 31.6255913635 +35 39 41.489193276   11.07 10.63 10.52   F7V 112 1
28 Kepler-10 Ro* 19 02 43.0612302512 +50 14 28.700759378       11.00   G 167 1
29 Kepler-1b Pl 19 07 14.0379171930 +49 18 59.090895318           ~ 288 2
30 HD 179070 Ro* 19 09 26.8351401260 +38 42 50.455094310   8.767 8.25 8.00   F6IV 143 1
31 BD+38 3583 Ro* 19 25 40.3886092719 +38 40 20.411344230   10.73 10.00     ~ 79 0
32 Kepler-78 EB* 19 34 58.0139307295 +44 26 53.957326851   12.87 11.72     K2 54 1
33 HD 189733 BY* 20 00 43.7130382888 +22 42 39.071811263 9.241 8.578 7.648 7.126 6.68 K2V 746 1
34 BD+34 4779 PM* 22 52 09.8635559135 +35 26 49.606963112   10.77 10.36 10.15   F8V 67 1
35 WASP-4 PM* 23 34 15.0858223039 -42 03 41.049468209   13.51 12.48 11.9   G7V 135 1
36 BD-00 4534 PM* 23 35 49.2850796143 +00 26 43.842763271   11.10   9.6   K0 40 0

    Equat.    Gal    SGal    Ecl

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2021.03.05-17:53:28

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