The Neil Gehrels Swift Observatory

General Information:

Swift Name:SWIFT J0557.9-3822
RA:89.5154 (J2000)
Dec:-38.3436 (J2000)
S/N:21.28
Counterpart Name:2MASX J05580206-3820043
Ctpt RA:89.5083 (J2000)
Ctpt Dec:-38.3346 (J2000)
Flux:29.11 (26.68, 31.64) × 10-12 ergs s-1 cm-2, (14-195 keV)
Gamma:2.29 (2.16, 2.42)
Chi2r:2.96
Redshift:0.0339
Luminosity:43.90 log[ergs s-1] (14-195 keV)
AS:1
Class:4
Type:Sy1.2

BAT 157-Month Lightcurve:

Crab Weighted Monthly Mosaic Lightcurve for SWIFT J0557.9-3822

Crab Weighted Monthly Mosaic Lightcurve for SWIFT J0557.9-3822

Lightcurve:

BAT 157-Month Spectrum:

BAT Spectrum for SWIFT J0557.9-3822

BAT Spectrum for SWIFT J0557.9-3822

Data last modified: 15 Sep 2025
Page last modified: 03 Jun 2025