The Neil Gehrels Swift Observatory

General Information:

BAT image for SWIFT J1104.4+3812

BAT Hard X-ray Image
(5 degrees on a side, red = BAT sig 14-24,
green = BAT sig 24-50, BAT sig 50-100

Optical image for SWIFT J1104.4+3812

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

Source Number:76
Swift Name:SWIFT J1104.4+3812
ID:Mrk 421
RA deg:166.1138 (J2000)
Dec deg:38.2088 (J2000)
>15 deg:y*
SNR:14.02
fBAT:6.8 x 10-11 ergs/cm2/sec (14-195 keV)
z:0.030021
Log(L[ergs s-1]):44.15 (14-195 keV)
Log(nH[cm-2]):20.30
Reference:
Cmplx:
Type:BL Lac
Note:
J mag:11.09
fROSAT Rate:16.220 cts/sec

BAT 9-month Lightcurves:

BAT 4-Day Light Curve for Mrk 421

BAT 4-Day Light Curve for Mrk 421

All BAT 9-month Lightcurves:

BAT Spectrum:

Includes the .pha file and the diagonal response matrix.

BAT Hard X-ray Transient Source Page:

Data last updated: 19 Mar 2012