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GRB 220921A — Source 2 (SWIFT J042836.7-394824)

Build custom XRT products for this source.

Image of the XRT detection

This source is detected in 4 blocks. Show all images.

Image of the LC

Spectrum

Image of the spectrum

Enhanced position

Image of the UVOT image

Back to list of objects in this field.

Source 1 has been manually confirmed as the GRB afterglow so these products are no longer updated. The up-to-date data for the afterglow are now available through the main GRB results area for this GRB.

Source details
Rank/Classification: 4: Known X-ray Source
RA (J2000):04h 28m 36.60s (= 67.15250°)
Dec (J2000):-39° 48′ 26.3″ (= -39.8073°)
Error (radius, 90%):3.1″ (enhanced position)
Detection flag:Good
XRT exposure:674 s (vignetting corrected)
Peak rate:0.038 (±0.010) ct s-1
Peak flux:1.6 (±0.4) ×10-12 erg cm-2 s-1
Mean rate:0.038 (±0.010) ct s-1
Mean flux:1.6 (±0.4) ×10-12 erg cm-2 s-1
Has spectral fit?Yes
NH 7.24 × 1021 cm-2
Γ 5.07
Database ID:931
Possible issues:
Optical Loading: No warning (automatic)
Stray Light: No warning (automatic)
Extended Emission: No warning (automatic)
Catalogue information
Known X-ray emitter?Yes - 1RXS J042836.3-394812 in the ROSAT/RASSBSC catalogue.
Cat. rate1:0.067 (±0.012) ct s-1
Cat. flux2:8.2 (±1.5) ×10-13 erg cm-2 s-1
Observed/Cat. flux3.1 σ
Fading? No (≤1-σ significance).
Near 2MASS source? Yes, 1 match. Show details.
Near SIMBAD source?Yes - 1RXS J042836.3-394812 is 5.3″ away.
High proper motion star?No.
Catalogue SearchCone search radius 9″ 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