Abstract
We present the results of our analysis of the series of X-ray observations, photometric andspectroscopic monitoring for the ultraluminous X-ray source VII Zw 403 ULX (UGC 6456 ULX). Basedon a number of indirect signs, we hypothesize that the accretor in this binary system is a neutron star. Wehave estimated the mass outflow rate in the object’s active state within the supercritical disk wind model tobe ≈4.0 × 10−5 M yr−1.
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