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GRB 230307A — Source 1 (SWIFT J042437.1-754134)

Build custom XRT products for this source.

Image of the XRT detection

This source is detected in 2 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Source 2 has been manually confirmed as the GRB afterglow so these products are no longer updated.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 24m 36.54s (= 66.15225°)
Dec (J2000):-75° 41′ 33.7″ (= -75.6927°)
Error (radius, 90%):2.8″ (enhanced position)
Detection flag:Good
XRT exposure:498 s (vignetting corrected)
Peak rate:0.28 (±0.06) ct s-1
Peak flux:1.18 (±0.24) ×10-11 erg cm-2 s-1
Mean rate:0.228 (±0.027) ct s-1
Mean flux:9.8 (±1.2) ×10-12 erg cm-2 s-1
Has spectral fit?Yes
NH 1.06 × 1021 cm-2
Γ 1.61
Database ID:1014
Possible issues:
Optical Loading: Needs checking (automatic)
Stray Light: No warning (automatic)
Extended Emission: No warning (automatic)
Catalogue information
Known X-ray emitter?Yes - XMMSL2 J042435.7-754130 in the XMM-NEWTON/XMMSLEWCLN catalogue.
Cat. rate1:3.1 (±0.8) ct s-1
Cat. flux2:3.5 (±1.0) ×10-11 erg cm-2 s-1
Observed/Cat. flux≤0 σ
Fading? No (≤1-σ significance).
Near 2MASS source? Yes, 1 match. Show details.
Near SIMBAD source?Yes - HD 28839 is 1.5″ away.
High proper motion star?No.
Catalogue SearchCone search radius 8″ 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