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Einstein Probe trigger EP#01709248635
Source 1 (SWIFT J042341.2+153758)

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):04h 23m 41.31s (= 65.92213°)
Dec (J2000):+15° 37′ 54.4″ (= +15.6318°)
Error (radius, 90%):2.7″ (enhanced position)
Detection flag:Good
XRT exposure:754 s (vignetting corrected)
Peak rate:1.20 (±0.27) ct s-1
Peak flux:5.1 (±1.2) ×10-11 erg cm-2 s-1
Mean rate:0.80 (±0.05) ct s-1
Mean flux:3.42 (±0.21) ×10-11 erg cm-2 s-1
The source is fading with 1.2-σ significance
Has spectral fit?Yes
NH 2.87 × 1021 cm-2
Γ 2.87
Database ID:498
Things to check:
Optical Loading: No warning (automatic)
Stray Light: No warning (automatic)
Extended Emission: No warning (automatic)
Catalogue information
Known X-ray emitter?Yes - XMMSL3 J042341.3+153758 in the XMM-NEWTON/XMMSLEWCLN catalogue.
Cat. rate1:1.1 (±0.5) ct s-1
Cat. flux2:8 (±3) ×10-12 erg cm-2 s-1
Observed/Cat. flux3.0 σ
Fading? ≤3-σ signifance.
Near 2MASS source? Yes, 1 match. Show details.
Near SIMBAD source?Yes - HD 285751 is 3.6″ away.
High proper motion star?Yes. HD 285751
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.

2MASS objects near the source

ID Position Offset from
XRT source		 J H K