The Neil Gehrels Swift Observatory

General Information:

Swift Name:SWIFT J1139.8+3157
RA:174.9201 (J2000)
Dec:31.9418 (J2000)
S/N:6.50
Counterpart Name:NGC 3786
Ctpt RA:174.9270 (J2000)
Ctpt Dec:31.9090 (J2000)
Flux:9.90 (7.35, 12.71) × 10-12 ergs s-1 cm-2, (14-195 keV)
Gamma:1.82 (1.47, 2.20)
Chi2r:0.71
Redshift:0.0089
Luminosity:42.25 log[ergs s-1] (14-195 keV)
AS:1
Class:5
Type:Sy1.9

BAT 157-Month Lightcurve:

Crab Weighted Monthly Mosaic Lightcurve for SWIFT J1139.8+3157

Crab Weighted Monthly Mosaic Lightcurve for SWIFT J1139.8+3157

Lightcurve:

BAT 157-Month Spectrum:

BAT Spectrum for SWIFT J1139.8+3157

BAT Spectrum for SWIFT J1139.8+3157

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