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GRB 250309B/IceCube-250309A — Source 16 (SWIFT J140328.7-084023)

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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

Enhanced position

Image of the UVOT image

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Source details
Rank/Classification: 4: Known X-ray Source
RA (J2000):14h 03m 28.91s (= 210.87046°)
Dec (J2000):-08° 40′ 23.2″ (= -8.6731°)
Error (radius, 90%):2.6″ (enhanced position)
Detection flag:Good
XRT exposure:8.2 ks (vignetting corrected)
Peak rate:0.077 (±0.020) ct s-1
Peak flux:3.3 (±0.9) ×10-12 erg cm-2 s-1
Mean rate:0.047 (±0.003) ct s-1
Mean flux:2.02 (+0.14, -0.13) ×10-12 erg cm-2 s-1
The source is fading with 1.1-σ significance
Has spectral fit?Yes
NH 3.06 × 1020 cm-2
Γ 1.74
Database ID:1354
Possible issues:
Optical Loading: No warning (automatic)
Stray Light: No warning (automatic)
Extended Emission: No warning (automatic)
Catalogue information
Known X-ray emitter?Yes - XMMSL3 J140328.8-084034 in the XMM-NEWTON/XMMSLEWCLN catalogue.
Cat. rate1:1.3 (±0.5) ct s-1
Cat. flux2:1.2 (±0.5) ×10-11 erg cm-2 s-1
Observed/Cat. flux≤0 σ
Fading? Maybe (1.1-σ significance).
Near 2MASS source? Yes, 1 match. Show details.
Near SIMBAD source?Yes - LEDA 3096319 is 2.6″ away.
High proper motion star?No.
Catalogue SearchCone search radius 7″ 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