Abstract
A central part of the GRB 790613 field is investigated, which contains about 1/3 of the area of 99% confidence of the GRB localization. Up to V ≈ 25 no blue optical counterparts were found. This can be interpreted as the absence in the field of single compact objects of the neutron star type as a possible potential source of γ-burst, up to a distance of ≈30 pc.
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Sokolov, V.V., Kopylov, A.I., Zharykov, S.V. et al. The search and investigation of faint blue star-like objects in the small GRB error boxes. Astrophys Space Sci 231, 343–346 (1995). https://doi.org/10.1007/BF00658647
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DOI: https://doi.org/10.1007/BF00658647