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Einstein Probe trigger EP250302a
Source 2 (SWIFT J111820.8+333353)

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 20.90s (= 169.58708°)
Dec (J2000):+33° 33′ 53.9″ (= +33.5650°)
Error (radius, 90%):5.4″ (enhanced position)
Detection flag:Good
XRT exposure:13.5 ks (vignetting corrected)
Peak rate:5.3 (+1.9, -1.5) ×10-3 ct s-1
Peak flux:2.3 (+0.8, -0.7) ×10-13 erg cm-2 s-1
Mean rate:3.3 (+0.9, -0.7) ×10-3 ct s-1
Mean flux:1.4 (+0.4, -0.3) ×10-13 erg cm-2 s-1
The source is fading with 1.9-σ significance
Has spectral fit?Yes
NH 2.02 × 1021 cm-2
Γ 1.93
Database ID:312
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 limit20.090 ct s-1
Obs rate/Rass UL≤0 σ
Fading? ≤3-σ signifance.
Near 2MASS source? No
Near SIMBAD source?Yes - SDSS J111820.60+333355.3 is 4.1″ away.
High proper motion star?No.
Catalogue SearchCone search radius 16″ 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.