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Einstein Probe trigger EP250302a
Source 1 (SWIFT J111803.7+333505)

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
Source details
Rank/Classification: 2: Outbursting source
RA (J2000):11h 18m 03.62s (= 169.51508°)
Dec (J2000):+33° 35′ 09.0″ (= +33.5858°)
Error (radius, 90%):2.5″ (enhanced position)
Detection flag:Good
XRT exposure:13.5 ks (vignetting corrected)
Peak rate:1.7 (±0.4) ct s-1
Peak flux:7.5 (±1.7) ×10-11 erg cm-2 s-1
Mean rate:0.081 (±0.005) ct s-1
Mean flux:3.50 (±0.20) ×10-12 erg cm-2 s-1
The source is fading with 4.4-σ significance
Has spectral fit?Yes
NH 6.43 × 1020 cm-2
Γ 1.85
Database ID:309
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
LSXPS upper limit3.9×10-3 ct s-1
Obs rate/LSXPS UL4.4 σ
Rass upper limit20.070 ct s-1
Obs rate/Rass UL4.3 σ
Fading? Yes (4.4-σ difference between at least one detection and a later detection or upper limit).
Near 2MASS source? No
Near SIMBAD source?No.
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.