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GRB 221206B — Source 4 (SWIFT J164425.5+424610)

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Image of the XRT detection

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

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Spectrum

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Source details
Rank/Classification: 4: Known X-ray Source
RA (J2000):16h 44m 25.58s (= 251.10658°)
Dec (J2000):+42° 46′ 11.0″ (= +42.7697°)
Error (radius, 90%):7.5″
Detection flag:Good
XRT exposure:4.8 ks (vignetting corrected)
Peak rate:1.7 (+0.9, -0.7) ×10-3 ct s-1
Peak flux:7.4 (+3.9, -2.9) ×10-14 erg cm-2 s-1
Mean rate:1.7 (+0.9, -0.7) ×10-3 ct s-1
Mean flux:7.4 (+3.9, -2.9) ×10-14 erg cm-2 s-1
Has spectral fit?Yes
NH 1.15 × 1020 cm-2
Γ 1.79
Database ID:953
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 J164425.0+424553 in the ROSAT/RASSFSC catalogue.
Cat. rate1:0.016 (±0.006) ct s-1
Cat. flux2:2.7 (±1.1) ×10-13 erg cm-2 s-1
Observed/Cat. flux≤0 σ
Fading? No (≤1-σ significance).
Near 2MASS source? Yes, 1 match. Show details.
Near SIMBAD source?Yes - [VV2006] J164425.7+424605 is 5.4″ away.
High proper motion star?No.
Catalogue SearchCone search radius 22″ 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.

2MASS objects near the source

ID Position Offset from
XRT source		 J H K