节点文献
2011~2017年“银河画卷”巡天数据集
MWISP sky survey data(2011–2017)
【摘要】 利用中国科学院紫金山天文台位于青海德令哈的13.7米毫米波望远镜及多波束超导成像频谱仪,对银河系进行12CO(J=1-0)、13CO(J=1-0)和C18O(J=1-0)三条分子谱线的巡天观测。项目计划对银经范围-10°≤L≤250°、银纬范围-5°≤B≤5°,约2 600平方度的天区进行大范围无偏巡测——即“银河画卷计划”。本数据集介绍的就是其中20112017年所有观测、预处理后的天文巡天数据,整个观测范围内基线噪声(rms)整体分布均匀,12CO(J=1-0)基线噪声约为0.5K、13CO(J=1-0)和C18O(J=1-0)基线噪声约为0.3 K,基本可以满足天文科研要求。
【Abstract】 Using a 13.7 m millimeter-wavelength telescope located in Delingha and a nine-beam Superconducting Spectroscopic Array Receiver(SSAR) system,the study performed 12CO(J=1-0),13CO(J=1-0),and C18O(J=1-0) observations toward the Milky Way.The MWISP project(Milky Way Imaging Scroll Painting) is a large,unbiased survey toward the Galactic region of-10°≤L≤250° and-5°≤B≤5°,covering a part of about 2600 square-degrees.The dataset introduces pretreated survey data observed during 2011 and 2017.The rms noise level is relatively even across the whole observation region,which is about 0.5 K for 12CO(J=1-0) and 0.3 K for 13CO(J=1-0)and C18O(J=1-0).This sensitivity basically satisfies the requirements of astronomical research.
- 【文献出处】 中国科学数据(中英文网络版) ,China Scientific Data , 编辑部邮箱 ,2018年02期
- 【分类号】P111;P156
- 【下载频次】24