WR
Period (P) 7.9241 yr
Semi-major axis (a) 8.30
Eccentricity (e) 0.9012
Inclination (i) 119.4
Mass 8.4 M☉
Luminosity 537,000 L☉
Temperature 70,000 K
O
Mass 20.5 M☉
Radius 35 R☉
Luminosity 1,600,000 L☉
Temperature 35,000 K
https://arxiv.org/abs/2210.06452
Nested Dust Shells around the Wolf-Rayet Binary WR 140 observed with JWST
The carbon-rich WR (WC) binary WR~140 presents an ideal astrophysical laboratory for investigating these questions given its well-defined orbital period and predictable dust-formation episodes every 7.93 years around periastron passage.
