The detection of Gamma Ray Burst GRB990705 on 1999 , July 5.66765 UT , pointing to the Large Magellanic Clouds , suggested the search for a possible neutrino counterpart , both in coincidence with and slightly before ( or after ) the photon burst .

We exploited such a possibility by means of the LVD neutrino telescope ( National Gran Sasso Laboratory , Italy ) , which has the capability to study low-energy cosmic neutrinos .
No evidence for any neutrino signal , over a wide range of time durations , has been found , at the occurrence of GRB990705 .
Due to the lack of information about both the source distance and its emission spectrum , the results of the search are expressed in terms of upper limits , at the Earth , to the \bar { \nu } _ { \mathrm { e } } flux \cdot cross-section , integrated over different time durations , \int \int \Phi _ { \bar { \nu } _ { \mathrm { e } } } \sigma dEdt .

Moreover , assuming thermal \bar { \nu } _ { \mathrm { e } } spectra at the source , upper limits to the \bar { \nu } _ { \mathrm { e } } flux , integrated over time duration , for different spectral temperatures , are obtained .
Based on these limits and on the expectations for \nu emission from collapsing astrophysical objects , the occurrence of a gravitational stellar collapse can be excluded up to a distance r \approx 50 kpc , in the case of time coincidence with GRB990705 , and r \approx 20 kpc , for the 24 hours preceding it .