GLEAM-X J0704-37

Parameter Value Confidence Frequency band Reference
Progenitor WD+MD Rodriguez (2025)
Declination (°) 37:05:40.56″ Hurley-Walker et al. (2024)
Dispersion measure (pc cm⁻³) 36.541 ± 0.005 pc cm⁻³ Hurley-Walker et al. (2024)
Distance (kpc) ~ 0.4 kpc Rodriguez (2025)
Effective temperature (K) (primary) ~ 7300 K Rodriguez (2025)
Effective temperature (K) (secondary) ~ 3000 K Rodriguez (2025)
Epoch of periastron (d) 57400 d Hurley-Walker et al. (2024)
Mass (M) (primary) > 0.22 M Rodriguez (2025)
Mass (M) (primary) ~ 0.8 - 1.0 M Rodriguez (2025)
Mass (M) (secondary) ~ 0.14 M Rodriguez (2025)
Orbit: period (d) 1620 ± 140 d Hurley-Walker et al. (2024)
Orbit: period (d) 0.12146 ± 0.00004 d Rodriguez (2025)
Orbit: radial-velocity semi-amplitude (km s⁻¹) (secondary) 189 ± 3 km s⁻¹ Rodriguez (2025)
Orbit: semi-major axis (projected) (lsec) 53.3 ± 7.5 lsec Hurley-Walker et al. (2024)
PEPOCH (d) 58182.05370 ± 0.00000 d Hurley-Walker et al. (2024)
Period (s) 10496.6 ± 0.1 s Hurley-Walker et al. (2024)
Period derivative < 3.9 × 10-11 Hurley-Walker et al. (2024)
Right ascension (°) 07:04:07.5120 s Hurley-Walker et al. (2024)
Spectral type (secondary) M5 Rodriguez (2025)