TEPCat: ZTF J2038+2030


 

This page summarises the information held within TEPCat for the transiting brown dwarf system ZTF J2038+2030. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2021ApJ...919L..26V  
Date of discovery paper 2021 / 5 / 19 y / m / d
Data/telescope used for discovery ZTF  
Right ascension 00 38 55.00 h m s
Declination +20 30 26.1 d m s
Right ascension (decimal) 9.72917 degrees
Declination (decimal) 20.50725 degrees
V-band apparent magnitude 17.75 mag
K-band apparent magnitude   mag
Transit duration 0.004
( 0.10 )
day
hour
Transit depth 100 %
Time of mid-transit   2459045.985194 ± 0.000002     HJD or BJD
Orbital period 0.4319208 ± 0.0000014 days
Reference for orbital ephemeris   2021ApJ...919L..26V  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 10900 ± 200 K
Stellar metal abundance ([Fe/H] or [M/H])   dex
Stellar mass 0.505 +0.024 −0.018   Msun
Stellar radius 0.0143 ± 0.0002 Rsun
Stellar logarithmic surface gravity 7.832 ± 0.013 c.g.s.
Stellar mean density ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis     AU
Planetary mass 62.1 +3.8 −4.1
( 19741 +1208 −1303 )
Mjup
Mearth
Planetary radius 0.762 +0.013 −0.011
( 8.54 +0.15 −0.12 )
Rjup
Rearth
Planetary surface gravity 2660 +130 −180
5.42 +0.02 −0.03
m/s2
log(cgs)
Planetary mean density 131 +7 −8
( 173.8 + 9.3 − 10.6 )
ρjup
g cm-3
Planetary equilibrium temperature K
Reference of detailed study 2021ApJ...919L..26V  

 

ZTF J2038+2030 does not have an entry in the catalogue of orbital obliquity measurements.

 


Page generated on 2024/06/14           John Southworth   (Keele University, UK)