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GRB 210413B — Source 4 (SWIFT J120848.6+555803)

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Spectrum

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Source details
Rank/Classification: 3: Uncatalogued X-ray source
RA (J2000):12h 08m 48.61s (= 182.20256°)
Dec (J2000):+55° 58′ 03.7″ (= +55.9677°)
Error (radius, 90%):6.3″
Detection flag:Good
XRT exposure:8.5 ks (vignetting corrected)
Peak rate:4.1 (+2.0, -1.5) ×10-3 ct s-1
Peak flux:1.8 (+0.9, -0.6) ×10-13 erg cm-2 s-1
Mean rate:3.18 (+1.05, -0.81) ×10-3 ct s-1
Mean flux:1.4 (+0.5, -0.3) ×10-13 erg cm-2 s-1
Has spectral fit?Yes
NH 2.93 × 1020 cm-2
Γ 1.99
Database ID:557
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 limit20.031 ct s-1
Obs rate/Rass UL≤0 σ
Fading? No (≤1-σ significance).
Near 2MASS source? No
Near SIMBAD source?Yes - SDSS J120848.54+555804.0 is 0.7″ away.
High proper motion star?No.
Catalogue SearchCone search radius 18″ 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.