The Neil Gehrels Swift Observatory

General Information:

Optical image for SWIFT J1257.4-6915

Optical Image
(3 arcmin on a side)

Swift Name:SWIFT J1257.4-6915
RA:194.427 (J2000)
Dec:-69.292 (J2000)
S/N:59.55
Counterpart Name:4U 1254-690
Ctpt RA:194.4048 (J2000)
Ctpt Dec:-69.2886 (J2000)
Flux:63.10 (61.91, 64.14) × 10-12 ergs s-1 cm-2, (14-195 keV)
Gamma:5.21 (5.07, 5.36)
Chi2r:2.80
Redshift:
Luminosity: log[ergs s-1] (14-195 keV)
AS:
Class:190
Type:LMXB

BAT 105-Month Lightcurve:

Crab Weighted Monthly Mosaic Lightcurve for 646

Crab Weighted Monthly Mosaic Lightcurve for SWIFT J1257.4-6915

Lightcurve:

BAT 105-Month Spectrum:

BAT Spectrum for SWIFT J1257.4-6915

BAT Spectrum for SWIFT J1257.4-6915


Data last modified: 04 Jan 2018
Page last modified: 17 Jul 2019