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GRB 211229A — Source 4 (SWIFT J193938.7+231509)

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Image of the XRT detection

This source is detected in 1 block. 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):19h 39m 38.76s (= 294.91152°)
Dec (J2000):+23° 15′ 09.8″ (= +23.2527°)
Error (radius, 90%):5.6″
Detection flag:Good
XRT exposure:5.0 ks (vignetting corrected)
Peak rate:3.1 (+1.3, -1.0) ×10-3 ct s-1
Peak flux:1.3 (+0.6, -0.4) ×10-13 erg cm-2 s-1
Mean rate:3.1 (+1.3, -1.0) ×10-3 ct s-1
Mean flux:1.3 (+0.6, -0.4) ×10-13 erg cm-2 s-1
Has spectral fit?No
Database ID:741
Possible issues:
Optical Loading: No warning (automatic)
Stray Light: No warning (automatic)
Extended Emission: No warning (automatic)
Catalogue information
Known X-ray emitter?Yes - 2SXPS J193938.7+231513
Cat. rate1:5.7 (±2.4) ×10-3 ct s-1
Cat. flux2:2.5 (±1.0) ×10-13 erg cm-2 s-1
Observed/Cat. flux≤0 σ
Fading? No (≤1-σ significance).
Near 2MASS source? Yes, 4 matches. Show details.
Near SIMBAD source?Yes - NVSS J193945+231404 is 7.5″ away.
High proper motion star?No.
Catalogue SearchCone search radius 16″ 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

2MASS objects near the source

ID Position Offset from
XRT source		 J H K