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Einstein Probe trigger EP#01709128921
Source 1 (SWIFT J041327.0-013918)

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: 4: Known X-ray Source
RA (J2000):04h 13m 26.84s (= 63.36185°)
Dec (J2000):-01° 39′ 19.9″ (= -1.6555°)
Error (radius, 90%):2.6″ (enhanced position)
Detection flag:Good
XRT exposure:1223 s (vignetting corrected)
Peak rate:4.4 (±1.0) ct s-1
Peak flux:1.9 (±0.4) ×10-10 erg cm-2 s-1
Mean rate:2.37 (±0.12) ct s-1
Mean flux:1.02 (±0.05) ×10-10 erg cm-2 s-1
The source is fading with 2.4-σ significance
Has spectral fit?Yes
NH 1.39 × 1021 cm-2
Γ 2.38
Database ID:260
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 J041325.8-013919 in the ROSAT/RASSBSC catalogue.
Cat. rate1:0.098 (±0.020) ct s-1
Cat. flux2:2.2 (±0.5) ×10-12 erg cm-2 s-1
Observed/Cat. flux4.4 σ
Fading? ≤3-σ signifance.
Near 2MASS source? No
Near SIMBAD source?Yes - RX J0413.4-0139B is 4.7″ away.
High proper motion star?No.
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.