Investigation of the Ultraluminous X-ray Source VII Zw 403 ULX in the X-ray and Optical Ranges
Abstract
We present the results of our analysis of the series of X-ray observations, photometric and spectroscopic monitoring for the ultraluminous X-ray source VII Zw 403 ULX (UGC 6456 ULX). Based on a number of indirect signs, we hypothesize that the accretor in this binary system is a neutron star. By analyzing the observed spectrum of this ULX taken during its active state within the framework of the model of a wind coming from the supercritical accretion disk, we have estimated the mass outflow rate to be ${≈}4.0× 10^{-5}M_{\odot}$ yr${}^{-1}$.
- Publication:
-
Astronomy Letters
- Pub Date:
- December 2023
- DOI:
- 10.1134/S1063773723120083
- Bibcode:
- 2023AstL...49..787V
- Keywords:
-
- neutron stars;
- X-ray and optical astronomy