论文标题
NGC 4258中的ULX源X-3：搜索其X射线和光学特性
The ULX Source X-3 in NGC 4258: A Search for Its X-ray and Optical Properties
论文作者
论文摘要
我们介绍了搜索附近Galaxy NGC 4258中超X-ray源（ULX）X-3的性质的结果。我们使用{\ it xmm-newton}，{\ it chandra}的档案数据，{\ it chandra}，{\ it {\ it nustar}和{\ it hst hst hst hST}。分析的总X射线数据以找到系统的模型参数表示恒星质量黑洞，$ \ sim $ 10 m $ _ {\ sun} $，作为中央紧凑型对象。此外，对{\ it HST}的光学数据的分析显示了两个光学候选者，其误差半径为90％的置信度为0 $ \ farcs $ 28。假设光学发射由供体星统治，则发现这两个候选者的光谱类型位于B3 $ -F1之间，绝对幅度为$ M _ {\ RM V} $ $ \ $ \ $ -6.4。此外，发现候选人的年龄和质量估计分别为10和18 Myr，分别为13和20 m $ _ {\ sun} $。
We present the results of a search for the nature of ultraluminous X-ray source (ULX) X-3 in the nearby galaxy NGC 4258. We use archival data from {\it XMM-Newton}, {\it Chandra}, {\it NuSTAR} and {\it HST} observations. Total X-ray data analysed to find the model parameters of the system is indicative of a stellar mass black hole, $\sim$ 10 M$_{\sun}$, as the central compact object. Furthermore, analyses of the optical data from {\it HST} reveal two optical candidates with the 90 per cent confidence level of error radius of 0$\farcs$28. Assuming the optical emission is dominated by the donor star, both of these candidates are found to have spectral types that lie between B3$-$F1 with absolute magnitudes of $M_{\rm V}$ $\approx$ -6.4. Moreover, the age and mass estimates for the candidates are found to be of 10 and 18 Myr and of 13 and 20 M$_{\sun}$, respectively.
