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GRB 250804B — Source 2 (SWIFT J024243.2-465138)

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Image of the XRT detection

This source is detected in 2 blocks. Show all images.

Image of the LC

Spectrum

Image of the spectrum

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Source details
Rank/Classification: 4: Known X-ray Source
RA (J2000):02h 42m 43.22s (= 40.68010°)
Dec (J2000):-46° 51′ 38.0″ (= -46.8606°)
Error (radius, 90%):6.5″
Detection flag:Good
XRT exposure:1012 s (vignetting corrected)
Peak rate:6.3 (+3.6, -2.6) ×10-3 ct s-1
Peak flux:2.7 (+1.5, -1.1) ×10-13 erg cm-2 s-1
Mean rate:6.3 (+3.6, -2.6) ×10-3 ct s-1
Mean flux:2.7 (+1.5, -1.1) ×10-13 erg cm-2 s-1
Has spectral fit?No
Database ID:1456
Possible issues:
Optical Loading: No warning (automatic)
Stray Light: No warning (automatic)
Extended Emission: No warning (automatic)
Catalogue information
Known X-ray emitter?Yes - 1RXS J024241.0-465149 in the ROSAT/RASSFSC catalogue.
Cat. rate1:0.031 (±0.012) ct s-1
Cat. flux2:8 (±3) ×10-13 erg cm-2 s-1
Observed/Cat. flux≤0 σ
Fading? No (≤1-σ significance).
Near 2MASS source? No
Near SIMBAD source?No.
High proper motion star?No.
Catalogue SearchCone search radius 19″ 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 assuming a generic AGN spectrum:NH=3×1020 cm-2, Γ=1.7