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 \({\approx}4.0\times 10^{-5}M_{\odot}\) yr\({}^{-1}\).

中文翻译：

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超发光 X 射线源 VII Zw 403 ULX 在 X 射线和光学范围内的研究

摘要

我们介绍了对超发光 X 射线源 VII Zw 403 ULX (UGC 6456 ULX) 的一系列 X 射线观测、光度和光谱监测的分析结果。根据一些间接迹象，我们假设这个双星系统中的吸积体是一颗中子星。通过在来自超临界吸积盘的风模型框架内分析该 ULX 在其活动状态下的观测光谱，我们估计质量流出率为 \ ({\approx}4.0\times 10^{ -5}M_{\odot}\)年\({}^{-1}\)。