室女星系团螺旋的12 co（J=1-0）飞行测绘巡天。I.数据和地图集
12co(J=1-0) on-the-Fly Mapping Survey of the Virgo Cluster Spirals. I. Data and Atlas
摘要：
利用美国五学院射电天文台（FCRAO）14米望远镜对28个室女星系团旋涡星系的${\rm ^{12}{CO(J=1-0)}}$辐射进行了OTF测绘。这项调查的目的是表征CO分布，运动学和光度的大样本的星系覆盖整个范围的恒星盘，而不是采样只有内部磁盘或长轴是由许多以前的单盘和干涉CO调查。在观测到的28个室女座螺旋中，有20个星系检测到CO发射。包括全球措施，径向措施，和地图的地图集，为每个检测到的星系。还提供了一份总结CO数据的说明以及文献中的相关信息。给出了OTF观测得到的CO性质，并与Young等人（1995）的FCRAO河外CO巡天的结果进行了比较，后者利用了沿长轴的位置转换观测和模型拟合方法。我们发现我们的OTF导出的CO性质在许多情况下与Young等人的结果吻合得很好，但Young等人的测量值在7种情况下（18种情况中）大1.4 - 2.4倍。我们将在目前正在编写的分析文件中进一步探讨造成差异的可能原因。
英文摘要：
We have performed an On-The-Fly (OTF) mapping survey of ${\rm ^{12}{CO(J=1-0)}}$ emission in 28 Virgo cluster spiral galaxies using the Five College Radio Astronomy Observatory (FCRAO) 14-m telescope. This survey aims to characterize the CO distribution, kinematics, and luminosity of a large sample of galaxies covering the full extents of stellar disks, rather than sampling only the inner disks or the major axis as was done by many previous single dish and interferometric CO surveys. CO emission is detected in 20 galaxies among the 28 Virgo spirals observed. An atlas consisting of global measures, radial measures, and maps, is presented for each detected galaxy. A note summarizing the CO data is also presented along with relevant information from the literature. The CO properties derived from our OTF observations are presented and compared with the results from the FCRAO Extragalactic CO Survey by Young et al. (1995) which utilized position-switching observations along the major axis and a model fitting method. We find that our OTF derived CO properties agree well with the Young et al. results in many cases, but the Young et al. measurements are larger by a factor of 1.4 - 2.4 for seven (out of 18) cases. We will explore further the possible causes for the discrepancy in the analysis paper currently under preparation.
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