Skip banner and navigation tools.

 |  site map

SVOM trigger GRB 250403A
Source 8 (SWIFT J125751.2-241721)

Image of the XRT detection

This source is detected in 1 block. Show all images.

Image of the LC

Spectrum

Image of the spectrum

Enhanced position

Image of the UVOT image
Source details
Rank/Classification: 3: Uncatalogued X-ray source
RA (J2000):12h 57m 51.37s (= 194.46406°)
Dec (J2000):-24° 17′ 25.6″ (= -24.2904°)
Error (radius, 90%):5.2″ (enhanced position)
Detection flag:Poor
XRT exposure:401 s (vignetting corrected)
Peak rate:0.031 (+0.017, -0.013) ct s-1
Peak flux:1.3 (+0.7, -0.6) ×10-12 erg cm-2 s-1
Has spectral fit?Yes
NH 1.40 × 1024 cm-2
Γ 9.94
Database ID:322
Things to check:
Optical Loading: No warning (automatic)
Stray Light: No warning (automatic)
Extended Emission: No warning (automatic)
Catalogue information
Known X-ray emitter?No. Get XMM upper limit
Rass upper limit20.0×100 ct s-1
Obs rate/Rass UL≤0 σ
Fading? ≤3-σ signifance.
Near 2MASS source? No
Near SIMBAD source?No.
High proper motion star?No.
Catalogue SearchCone search radius 15″ Vizier | Simbad | NED | X-ray master | LSXPS | 3XMM-DR5

Notes
All XRT count rates and fluxes are 0.3—10 keV
1Catalogued count-rates have been converted to XRT equivalents.
2Catalogued upper limits and fluxes have been converted to the XRT equivalent using the automatic power-law spectral fit described above.