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Einstein Probe trigger EP250304a
Source 7 (SWIFT J135428.5-425152)

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):13h 54m 28.54s (= 208.61890°)
Dec (J2000):-42° 51′ 52.8″ (= -42.8647°)
Error (radius, 90%):12.2″
Detection flag:Good
XRT exposure:28.0 ks (vignetting corrected)
Peak rate:7.8 (+3.4, -2.8) ×10-4 ct s-1
Peak flux:3.3 (+1.5, -1.2) ×10-14 erg cm-2 s-1
Mean rate:7.8 (+3.4, -2.8) ×10-4 ct s-1
Mean flux:3.3 (+1.5, -1.2) ×10-14 erg cm-2 s-1
Has spectral fit?Yes
NH 1.55 × 1024 cm-2
Γ 9.86
Database ID:321
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
LSXPS upper limit2.7×10-3 ct s-1
Obs rate/LSXPS UL≤0 σ
Rass upper limit20.051 ct s-1
Obs rate/Rass UL≤0 σ
Fading? ≤3-σ signifance.
Near 2MASS source? Yes, 2 matches. Show details.
Near SIMBAD source?No.
High proper motion star?No.
Catalogue SearchCone search radius 36″ 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