论文标题
紫外线到X射线排放的起源，通过分析其可变性探索了射电星系NGC 1275
Origin of the UV to X-ray emission of radio galaxy NGC 1275 explored by analyzing its variability
论文作者
论文摘要
我们分析了NGC 1275的紫外线（UV）和X射线数据，并通过{\ it swift}/uvot，Xrt，bat和{\ it fermi}在大约10年中进行大面积望远镜，以研究NGC 1275的核排放的起源。有时，紫外线或软X射线光谱区域的短期变化显示出与GEV伽马射线相关的快速变化。但是，紫外线和软X射线之间没有显着相关性。紫外线光谱具有狭窄的光谱形状，可以用单温的黑体辐射来表示。这些结果可能表明，紫外线和X射线排放的长期变异性是由喷射引起的，而积聚磁盘的排放在某种程度上会导致紫外线和X射线频段。
We analyze the ultraviolet (UV) and X-ray data of NGC 1275 obtained with {\it Swift}/UVOT, XRT, BAT and {\it Fermi} Large Area Telescope over about 10 years to investigate the origin of the nuclear emission from NGC 1275. We confirm that the UV and soft/hard X-ray fluxes gradually increased along with the GeV gamma rays. At times, short-term variations in the UV or soft X-ray spectral regions showed rapid variations correlated with the GeV gamma-rays. However there was no significant correlation between the UV and soft X-rays. The UV spectrum had a narrow spectral shape that could be represented by single-temperature blackbody radiation. These results could possibly indicate that the long-term variability of UV and X-ray emissions is caused by the jet, while the emissions from the accretion disk contribute to the UV and X-ray bands to some extent.
