论文标题
Chang-es XXVII：一个无线电/X射线标准的紧凑源目录和周围的边缘星系
CHANG-ES XXVII: A Radio/X-ray Catalogue of Compact Sources in and around Edge-on Galaxies
论文作者
论文摘要
我们介绍了附近星系中连续光晕的35个边缘星系盘和周围的离散，紧凑型无线电源的目录 - EVLA调查（Chang-es）。使用匹配分辨率（$ \ $ \ $ 3 arcsec）数据，使用PYBDSF程序以1.6 GHz（L频段）和6.0 GHz（C-band）的数据提取来源。我们还提供了27个星系的Chandra数据集的X射线源目录。两个射频带的源彼此相互关联，结果与X射线源交叉相关。所有目录都包含在本文中供下载。我们在L波段总共检测到2507个来源，C波段总共检测到1413个来源。在两个无线电频段和X射线上，已经成功地交叉了75个来源。三个新的核源是NGC〜3877，NGC〜4192和NGC〜5792中低光度活性银河核的候选。 NGC〜3877中的一个也似乎是可变的。我们还发现了两个同伴星系中的新核源：NGC〜4435（NGC〜4438的伴侣）和NGC〜4298（NGC〜4302的伴侣）。我们还发现了似乎是前景双星的东西。每个恒星都有X射线发射，它们之间的L波段和C波段都有无线电发射。这可能是一个碰撞的风二进制系统。提供后续研究的建议。
We present catalogues of discrete, compact radio sources in and around the discs of 35 edge-on galaxies in the Continuum Halos in Nearby Galaxies -- an EVLA Survey (CHANG-ES). The sources were extracted using the PyBDSF program at both 1.6 GHz (L-band) and 6.0 GHz (C-band) from matching resolution ($\approx$ 3 arcsec) data. We also present catalogues of X-ray sources from Chandra data sets for 27 of the galaxies. The sources at the two radio frequency bands were positionally cross-correlated with each other, and the result cross-correlated with the X-ray sources. All catalogues are included for download with this paper. We detect a total of 2507 sources at L-band and 1413 sources at C-band. Seventy-five sources have been successfully cross-correlated in both radio bands plus X-ray. Three new nuclear sources are candidates for Low Luminosity Active Galactic Nuclei in NGC~3877, NGC~4192, and NGC~5792; the one in NGC~3877 also appears to be variable. We also find new nuclear sources in two companion galaxies: NGC~4435 (companion to NGC~4438) and NGC~4298 (companion to NGC~4302). We have also discovered what appears to be a foreground double-star; each star has X-ray emission and there is radio emission at both L-band and C-band in between them. This could be a colliding wind binary system. Suggestions for follow-up studies are offered.
