GRB 230827B — Source 2 (SWIFT J195733.6+542559)

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Image | Exposure map

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

Spectrum

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Source 1 has been manually confirmed as the GRB afterglow so these products are no longer updated.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:	3: Uncatalogued X-ray source
RA (J2000):	19h 57m 33.68s (= 299.39035°)
Dec (J2000):	+54° 25′ 59.7″ (= +54.4332°)
Error (radius, 90%):	7.4″
Detection flag:	Poor
XRT exposure:	3.6 ks (vignetting corrected)
Peak rate:	2.0 (+1.7, -1.2) ×10^-3 ct s^-1
Peak flux:	8 (+7, -5) ×10^-14 erg cm^-2 s^-1
Has spectral fit?	No
Database ID:	1046
Possible issues:
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
Rass upper limit²	0.010 ct s^-1
Obs rate/Rass UL	≤0 σ
Fading?	No (≤1-σ significance).
Near 2MASS source?	Yes, 1 match. Show details.
Near SIMBAD source?	Yes - TYC 3939-162-1 is 1.5″ away.
High proper motion star?	No.
Catalogue Search	Cone search radius 22″ 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 assuming a generic AGN spectrum:N_H=3×10²⁰ cm^-2, Γ=1.7

2MASS objects near the source

Coordinate style:

ID	Position	Offset from XRT source	J	H	K