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Einstein Probe trigger EP250207a / EP250207.660
Source 1 (SWIFT J234737.4+270208)

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):23h 47m 37.47s (= 356.90612°)
Dec (J2000):+27° 02′ 07.3″ (= +27.0354°)
Error (radius, 90%):2.7″ (enhanced position)
Detection flag:Good
XRT exposure:1722 s (vignetting corrected)
Peak rate:0.65 (±0.15) ct s-1
Peak flux:2.8 (±0.6) ×10-11 erg cm-2 s-1
Mean rate:0.315 (±0.017) ct s-1
Mean flux:1.36 (±0.07) ×10-11 erg cm-2 s-1
The source is fading with 1.9-σ significance
Has spectral fit?Yes
NH 2.09 × 1021 cm-2
Γ 2.82
Database ID:291
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 limit20.031 ct s-1
Obs rate/Rass UL4.2 σ
Fading? ≤3-σ signifance.
Near 2MASS source? No
Near SIMBAD source?No.
High proper motion star?No.
Catalogue SearchCone search radius 8″ 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.