The Neil Gehrels Swift Observatory

General Information:

Swift Name:SWIFT J1309.2+1139
RA:197.2783 (J2000)
Dec:11.6358 (J2000)
S/N:31.53
Counterpart Name:NGC 4992
Ctpt RA:197.2733 (J2000)
Ctpt Dec:11.6341 (J2000)
Flux:56.44 (53.25, 59.72) × 10-12 ergs s-1 cm-2, (14-195 keV)
Gamma:1.66 (1.59, 1.74)
Chi2r:4.85
Redshift:0.0251
Luminosity:43.92 log[ergs s-1] (14-195 keV)
AS:1
Class:5
Type:Sy2

BAT 157-Month Lightcurve:

Crab Weighted Monthly Mosaic Lightcurve for SWIFT J1309.2+1139

Crab Weighted Monthly Mosaic Lightcurve for SWIFT J1309.2+1139

Lightcurve:

BAT 157-Month Spectrum:

BAT Spectrum for SWIFT J1309.2+1139

BAT Spectrum for SWIFT J1309.2+1139

BAT Hard X-ray Transient Source Page:

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