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GRB 250521B — Source 1 (SWIFT J132344.9+015453)

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Image of the XRT detection

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Spectrum

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Source details
Rank/Classification: 3: Uncatalogued X-ray source
RA (J2000):13h 23m 44.94s (= 200.93727°)
Dec (J2000):+01° 54′ 53.3″ (= +1.9148°)
Error (radius, 90%):7.8″
Detection flag:Reasonable
XRT exposure:1391 s (vignetting corrected)
Peak rate:8 (+4, -3) ×10-3 ct s-1
Peak flux:3.6 (+1.7, -1.3) ×10-13 erg cm-2 s-1
Mean rate:8 (+4, -3) ×10-3 ct s-1
Mean flux:3.6 (+1.7, -1.3) ×10-13 erg cm-2 s-1
Has spectral fit?Yes
NH 2.45 × 1021 cm-2
Γ 2.03
Database ID:1413
Possible issues:
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 limit20.071 ct s-1
Obs rate/Rass UL≤0 σ
Fading? No (≤1-σ significance).
Near 2MASS source? No
Near SIMBAD source?Yes - SDSSCGB 35718.1 is 1.6″ away.
High proper motion star?No.
Catalogue SearchCone search radius 23″ 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.