Skip banner and navigation tools.

 |  site map

Einstein Probe trigger EP250223a
Source 1 (SWIFT J063305.9-222641)

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):06h 33m 05.50s (= 98.27293°)
Dec (J2000):-22° 26′ 46.6″ (= -22.4463°)
Error (radius, 90%):6.8″ (enhanced position)
Detection flag:Good
XRT exposure:6.0 ks (vignetting corrected)
Peak rate:0.14 (±0.03) ct s-1
Peak flux:6.1 (±1.4) ×10-12 erg cm-2 s-1
Mean rate:0.0297 (+0.0026, -0.0025) ct s-1
Mean flux:1.28 (±0.11) ×10-12 erg cm-2 s-1
The source is fading with 4.0-σ significance
Has spectral fit?Yes
NH 1.36 × 1021 cm-2
Γ 2.12
Database ID:300
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 limit5.8×10-3 ct s-1
Obs rate/LSXPS UL4.3 σ
Rass upper limit20.022 ct s-1
Obs rate/Rass UL3.8 σ
Fading? Yes (4.0-σ difference between at least one detection and a later detection or upper limit).
Near 2MASS source? No
Near SIMBAD source?No.
High proper motion star?No.
Catalogue SearchCone search radius 20″ 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.