The Neil Gehrels Swift Observatory

General Information:

Optical image for SWIFT J1209.4+4340

Optical Image
(3 arcmin on a side, red = DSS 2 IR,
green = DSS 2 red, blue = DSS 2 blue

Swift Name:SWIFT J1209.4+4340
RA:182.359 (J2000)
Dec:43.675 (J2000)
S/N:15.50
Counterpart Name:NGC 4138
Other Name:
Ctpt RA:182.3741 (J2000)
Ctpt Dec:43.6853 (J2000)
Flux:30.00 (26.36, 33.79) × 10-12 ergs s-1 cm-2, (14-195 keV)
Contamination: 
Gamma:1.75 (1.59, 1.92)
Chi2r:0.40
Redshift:0.0030
Luminosity:41.76 log[ergs s-1] (14-195 keV)
AS:4
Class:5
Type:Sy1.9

BAT 70-Month Lightcurves:

Crab Weighted Monthly Mosaic Lightcurve for SWIFT J1209.4+4340

Crab Weighted Monthly Mosaic Lightcurve for SWIFT J1209.4+4340

Lightcurves:

BAT 70-Month Spectrum:

BAT Spectrum for SWIFT J1209.4+4340

BAT Spectrum for SWIFT J1209.4+4340

BAT Hard X-ray Transient Source Page:

Data last modified: 23 May 2013
Page last modified: 10 Sep 2020