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GRB250716A/GOTO25eyp — Source 2 (SWIFT J042802.0-463251)

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Image of the XRT detection

This source is detected in 1 block. Show all images.

Image of the LC

Spectrum

Image of the spectrum

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Source details
Rank/Classification: 4: Known X-ray Source
RA (J2000):04h 28m 02.00s (= 67.00835°)
Dec (J2000):-46° 32′ 51.4″ (= -46.5476°)
Error (radius, 90%):5.9″
Detection flag:Good
XRT exposure:4.2 ks (vignetting corrected)
Peak rate:8.4 (±2.2) ×10-3 ct s-1
Peak flux:3.6 (±1.0) ×10-13 erg cm-2 s-1
Mean rate:7.4 (+1.9, -1.7) ×10-3 ct s-1
Mean flux:3.2 (+0.8, -0.7) ×10-13 erg cm-2 s-1
Has spectral fit?Yes
NH 2.11 × 1021 cm-2
Γ 3.83
Database ID:1442
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 J042801.3-463238 in the ROSAT/RASSFSC catalogue.
Cat. rate1:0.015 (±0.006) ct s-1
Cat. flux2:2.2 (±0.8) ×10-13 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 - 2MASS J04280188-4632508 is 1.4″ away.
High proper motion star?Yes. 2MASS J04280188-4632508
Catalogue SearchCone search radius 17″ 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