The Neil Gehrels Swift Observatory

General Information:

Optical image for SWIFT J1657.7+3518

Optical Image
(3 arcmin on a side)

Swift Name:SWIFT J1657.7+3518
RA:254.458 (J2000)
Dec:35.342 (J2000)
S/N:839.94
Counterpart Name:Her X-1
Ctpt RA:254.4576 (J2000)
Ctpt Dec:35.3424 (J2000)
Flux:969.61 (968.07, 970.88) × 10-12 ergs s-1 cm-2, (14-195 keV)
Gamma:3.29 (3.29, 3.30)
Chi2r:6066.70
Redshift:
Luminosity: log[ergs s-1] (14-195 keV)
AS:
Class:190
Type:LMXB

BAT 105-Month Lightcurve:

Crab Weighted Monthly Mosaic Lightcurve for 848

Crab Weighted Monthly Mosaic Lightcurve for SWIFT J1657.7+3518

Lightcurve:

BAT 105-Month Spectrum:

BAT Spectrum for SWIFT J1657.7+3518

BAT Spectrum for SWIFT J1657.7+3518


BAT Hard X-ray Transient Source Page:


Data last modified: 12 Jul 2018
Page last modified: 12 Jul 2018