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Einstein Probe trigger EP250109a / GRB 250109A
Source 2 (SWIFT J055536.1-122119)

Image of the XRT detection

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

Image of the LC

Spectrum

Image of the spectrum
Source details
Rank/Classification: 3: Uncatalogued X-ray source
RA (J2000):05h 55m 36.12s (= 88.90051°)
Dec (J2000):-12° 21′ 19.8″ (= -12.3555°)
Error (radius, 90%):6.9″
Detection flag:Good
XRT exposure:4.1 ks (vignetting corrected)
Peak rate:3.5 (+1.4, -1.1) ×10-3 ct s-1
Peak flux:1.5 (+0.6, -0.5) ×10-13 erg cm-2 s-1
Mean rate:3.5 (+1.4, -1.1) ×10-3 ct s-1
Mean flux:1.5 (+0.6, -0.5) ×10-13 erg cm-2 s-1
Has spectral fit?Yes
NH 1.71 × 1024 cm-2
Γ 5.08
Database ID:262
Things to check:
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 limit243484081429990 ct s-1
Obs rate/Rass UL≤0 σ
Fading? ≤3-σ signifance.
Near 2MASS source? No
Near SIMBAD source?No.
High proper motion star?No.
Catalogue SearchCone search radius 20″ 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.