论文标题
Meerkat的《神秘闪光4-JY（G4JY）》来源的随访
MeerKAT follow-up of enigmatic GLEAM 4-Jy (G4Jy) sources
论文作者
论文摘要
我们介绍了研究140个无线电源（银河系和乳肠化的全sky MWA [Murchison widefield阵列]）4JY（G4JY）样本中的结果。这些来源对Meerkat进行了跟进，以评估其无线电形态并启用宿主 - 半鉴定，因为现有的25至45-ARCSEC分辨率的无线电图像没有提供足够的信息。我们将这些来源称为Meerkat-2019子集。目的是通过视觉检查包括四个调查的无线电数据（在150、200、200、843/1400和1300 MHz）的视觉覆盖层来识别这些来源的主机银河系。我们的形态学分类和宿主 - 肺泡鉴定依赖于Meerkat（1300 MHz）的〜7- arcsec分辨率图像。通过对覆盖层的目视检查，Meerkat-2019子集中的14个无线电来源具有广角尾（WAT）形态，10个是尾巴，5个具有X-，S-/Z形形态。其余的大多数来源具有典型对称叶的无线电形态。在140个来源中，我们找到了98个来源的主机星系，而没有确定的主机银河系。即使来自Meerkat的更高分辨率图像，这42个来源仍然具有模棱两可的识别。
We present the results from studying 140 radio sources in the GLEAM (GaLactic and Extragalactic All-sky MWA [Murchison Widefield Array]) 4-Jy (G4Jy) Sample. These sources were followed-up with MeerKAT to assess their radio morphology and enable host-galaxy identification, as existing radio images of 25 to 45-arcsec resolution do not provide sufficient information. We refer to these sources as the MeerKAT-2019 subset. The aim is to identify the host galaxy of these sources by visually inspecting the overlays comprising radio data from four surveys (at 150, 200, 843/1400, and 1300 MHz). Our morphological classification and host-galaxy identification relies upon the ~7-arcsec resolution images from MeerKAT (1300 MHz). Through the visual inspection of the overlays, 14 radio sources in the MeerKAT-2019 subset have wide-angle tail (WAT) morphology, 10 are head-tail, and 5 have X-, S-/Z-shaped morphology. Most of the remaining sources have the radio morphology of typical symmetric lobes. Of 140 sources, we find host galaxies for 98 sources, leaving 42 with no identified host galaxy. These 42 sources still have ambiguous identification even with higher resolution images from MeerKAT.
