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Einstein Probe trigger EP250911a
Source 1 (SWIFT J235004.5+291757)

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):23h 50m 04.58s (= 357.51909°)
Dec (J2000):+29° 17′ 57.2″ (= +29.2992°)
Error (radius, 90%):4.6″
Detection flag:Good
XRT exposure:1730 s (vignetting corrected)
Peak rate:0.024 (±0.005) ct s-1
Peak flux:1.03 (±0.20) ×10-12 erg cm-2 s-1
Mean rate:0.024 (±0.005) ct s-1
Mean flux:1.03 (±0.20) ×10-12 erg cm-2 s-1
Has spectral fit?Yes
NH 5.84 × 1020 cm-2
Γ 1.92
Database ID:484
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 limit20.034 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 13″ 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.