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Einstein Probe trigger EP#01709319842
Source 1 (SWIFT J044228.4-261345)

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 42m 28.85s (= 70.62022°)
Dec (J2000):-26° 13′ 47.0″ (= -26.2297°)
Error (radius, 90%):2.6″ (enhanced position)
Detection flag:Good
XRT exposure:1925 s (vignetting corrected)
Peak rate:0.55 (±0.12) ct s-1
Peak flux:2.4 (±0.5) ×10-11 erg cm-2 s-1
Mean rate:0.292 (±0.014) ct s-1
Mean flux:1.25 (±0.06) ×10-11 erg cm-2 s-1
The source is fading with 1.3-σ significance
Has spectral fit?Yes
NH 1.92 × 1021 cm-2
Γ 3.00
Database ID:633
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 - 1RXS J044229.1-261341 in the ROSAT/RASSFSC catalogue.
Cat. rate1:0.064 (±0.022) ct s-1
Cat. flux2:1.0 (±0.4) ×10-12 erg cm-2 s-1
Observed/Cat. flux4.1 σ
Fading? ≤3-σ signifance.
Near 2MASS source? Yes, 2 matches. Show details.
Near SIMBAD source?Yes - UNSW-V 022 is 5.6″ away.
High proper motion star?Yes. UNSW-V 022
Catalogue SearchCone search radius 7″ 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