Swift BAT 157-Month Hard X-ray Survey » SWIFT J1643.9+5739

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General Information:

Swift Name:	SWIFT J1643.9+5739
RA:	250.9684 (J2000)
Dec:	57.6568 (J2000)
S/N:	15.76
Counterpart Name:	Swift J164449.3+573451
Ctpt RA:	251.2050 (J2000)
Ctpt Dec:	57.5811 (J2000)
Flux:	38.25 (33.83, 42.96) × 10^-12 ergs s^-1 cm^-2, (14-195 keV)
Gamma:	0.74 (0.48, 0.97)
Chi²_{r_:}	12.59
Redshift:	0.3530
Luminosity:	46.22 log[ergs s^-1] (14-195 keV)
AS:	1
Class:	16
Type:	Tidal disruption event

SIMBAD
NED

BAT 157-Month Lightcurve:

Crab Weighted Monthly Mosaic Lightcurve for SWIFT J1643.9+5739

Crab Weighted Monthly Mosaic Lightcurve for SWIFT J1643.9+5739

Lightcurve:

BAT 157-Month Spectrum:

BAT Spectrum for SWIFT J1643.9+5739

BAT Spectrum for SWIFT J1643.9+5739

SWIFT_J1643.9+5739.pha

BAT Hard X-ray Transient Source Page:

http://swift.gsfc.nasa.gov/docs/swift/results/transients/weak/SwiftJ164449.3p573451/

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