The Neil Gehrels Swift Observatory

General Information:

Swift Name:SWIFT J2139.7+5951
RA:324.8857 (J2000)
Dec:59.8345 (J2000)
S/N:6.73
Counterpart Name:1RXS J213944.3+595016
Ctpt RA:324.9346 (J2000)
Ctpt Dec:59.8378 (J2000)
Flux:9.55 (7.31, 12.07) × 10-12 ergs s-1 cm-2, (14-195 keV)
Gamma:2.42 (2.06, 2.86)
Chi2r:1.79
Redshift:0.1140
Luminosity:44.52 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 J2139.7+5951

Crab Weighted Monthly Mosaic Lightcurve for SWIFT J2139.7+5951

Lightcurve:

BAT 157-Month Spectrum:

BAT Spectrum for SWIFT J2139.7+5951

BAT Spectrum for SWIFT J2139.7+5951

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