Press Release
Free Access

Table A.4

TOI-681 stellar and companion parameters.

Star name & aliases: TOI 681, TIC 410 450 228, TYC 8911-00495-1, UCAC4 148-012283, 2MASS J07513479-6 024 448

Parameter Unit Source Value
Stellar parameters
α Right Ascension (hh:mm:ss) TICv8 07:51:34.79
δ Declination (deg:min:sec) TICv8 –60:24:44.6
Vmag V-band magnitude TICv8 10.885
ϖ Parallax (mas) Gaia DR2 2.442±0.013
v sin i* Surface rotational velocity (km s−1) GALAH 30.80 ± 0.78

Parameter Unit Exofast Value

M* Mass (M)
R* Radius (R)
L* Luminosity (L)
ρ* Density (cgs)
log g Surface gravity (cgs)
Teff Effective temperature (K)
[Fe/H] Metallicity (dex)
Age Age (Gyr)
EEP Equal evolutionary point
Companion parameters
Mb Mass (MJ)
Rb Radius (RJ) [0,5]
P Period (days)
TC Time of conjunction - 2 450 000 (BJDTDB)
a Semi-major axis (AU)
i Inclination (Degrees)
e Eccentricity
ω* Argument of Periastron (Degrees)
Teq Equilibrium temperature (K)
K RV semi-amplitude (m s−1)
δ Transit depth (fraction)
τ Ingress/egress transit duration (days)
T14 Total transit duration (days)
b Transit impact parameter
ρP Density (cgs)
log gP Surface gravity
F Incident Flux (109 erg s−1 cm−2)

Wavelength parameters B I R Sloang TESS
u1 linear limb-darkening coeff
u2 quadratic limb-darkening coeff
γrel Relative RV Offset (m s−1)
σJ RV Jitter (m s−1)
RV Jitter Variance

Notes. Priors are for the EXOFASTv2 global model only, where are Gaussian priors and priors in brackets represent hard limit priors. The topmost parameters were not modeled with EXOFASTv2 and the source of their value is displayed. (†)Age of cluster NGC 2516.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.