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Einstein Probe trigger EP250302a
Source 3 (SWIFT J111801.0+332314)

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):11h 18m 01.07s (= 169.50448°)
Dec (J2000):+33° 23′ 14.9″ (= +33.3875°)
Error (radius, 90%):6.0″
Detection flag:Good
XRT exposure:11.5 ks (vignetting corrected)
Peak rate:6.4 (+4.0, -2.8) ×10-3 ct s-1
Peak flux:2.8 (+1.7, -1.2) ×10-13 erg cm-2 s-1
Mean rate:3.3 (+0.9, -0.6) ×10-3 ct s-1
Mean flux:1.42 (+0.38, -0.28) ×10-13 erg cm-2 s-1
The source is fading with 1.0-σ significance
Has spectral fit?Yes
NH 2.54 × 1020 cm-2
Γ 1.42
Database ID:313
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 limit4.7×10-3 ct s-1
Obs rate/LSXPS UL≤0 σ
Rass upper limit20.048 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 17″ 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.