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GRB 180305A — Source 4 (SWIFT J031836.1+320313)

Build custom XRT products for this source.

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

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Source 2 has been manually confirmed as the GRB afterglow so these products are no longer updated.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):03h 18m 36.16s (= 49.65068°)
Dec (J2000):+32° 03′ 09.9″ (= +32.0527°)
Error (radius, 90%):3.3″ (enhanced position)
Detection flag:Good
XRT exposure:4.7 ks (vignetting corrected)
Peak rate:0.0106 (±0.0022) ct s-1
Peak flux:4.5 (±1.0) ×10 erg cm-2 s-1
The source is fading with 1.0-σ significance
Has spectral fit?Yes
NH 2.47 × 1022 cm-2
Γ 1.69
Database ID:146
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 J031836.9+320317 in the ROSAT/RASSFSC catalogue.
Cat. rate1:0.031 (±0.010) ct s-1
Cat. flux2:2.8 (±0.9) ×10-13 erg cm-2 s-1
Observed/Cat. flux1.4 σ
Fading? Maybe (1.0-σ significance).
Near 2MASS source? Yes, 1 match. Show details.
Near SIMBAD source?Yes - BD+31 579 is 3.9″ 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