NOIRCAT -北部HIPASS光学/红外目录
NOIRCAT - The Northern HIPASS Optical/IR Catalogue
摘要：
我们提出了北方HIPASS光学/近红外目录（NOIRCAT），光学/近红外对应的北方HIPASS目录（NHICAT）。在NHICAT的1002个源中，655个（66%）具有匹配光速的光学对应物。另外85个（8%）源具有与先前无线电发射线调查匹配的速度的光学对应物。我们发现NOIRCAT源的气体和恒星含量之间的相关性。我们的HI选择的孤立星系样本也呈现出比以前对常规孤立星系的光学选择研究更广泛的近红外（NIR）颜色。所有在光学无遮挡区域的HI探测都可以与NED光学对应物或POSSII或DSS图像中可见的星系相匹配。然而，由于这些匹配的星系中有200多个没有速度信息，因此需要进一步的后续观测来确认匹配，从而确认或否认该数据集中暗星系的存在。
英文摘要：
We present the Northern HIPASS Optical/InfraRed CATalogue (NOIRCAT), an optical/near-infrared counterpart to the Northern HIPASS catalogue (NHICAT). Of the 1002 sources in NHICAT, 655 (66%) have optical counterparts with matching optical velocities. A further 85 (8%) sources have optical counterparts with matching velocities from previous radio emission-line surveys. We find a correlation between the gas and stellar content of the NOIRCAT sources. Our HI-selected sample of isolated galaxies also present a wider range in near-infrared (NIR) colours than previous optically-selected studies of regular, isolated galaxies. All HI detections in optically unobscured fields could be matched with either a NED optical counterpart, or a galaxy visible in POSSII or DSS images. However, as over 200 of these matched galaxies have no velocity information, further follow-up observations are needed to confirm the matches, and hence confirm or deny the existence of dark galaxies in this dataset.
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