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Einstein Probe trigger EP250302a
Source 4 (SWIFT J111811.3+334507)

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: 3: Uncatalogued X-ray source
RA (J2000):11h 18m 11.60s (= 169.54833°)
Dec (J2000):+33° 45′ 10.6″ (= +33.7529°)
Error (radius, 90%):4.2″ (enhanced position)
Detection flag:Good
XRT exposure:11.6 ks (vignetting corrected)
Peak rate:6.2 (+2.0, -1.7) ×10-3 ct s-1
Peak flux:2.7 (+0.9, -0.7) ×10-13 erg cm-2 s-1
Mean rate:5.15 (+1.15, -0.92) ×10-3 ct s-1
Mean flux:2.2 (+0.5, -0.4) ×10-13 erg cm-2 s-1
Has spectral fit?Yes
NH 2.39 × 1020 cm-2
Γ 1.54
Database ID:314
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 limit4.9×10-3 ct s-1
Obs rate/LSXPS UL≤0 σ
Rass upper limit20.046 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 12″ 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.