论文标题
CMZOOM II：紧凑型亚毫米粉尘连续源的目录中的中央分子区域
CMZoom II: Catalog of Compact Submillimeter Dust Continuum Sources in the Milky Way's Central Molecular Zone
论文作者
论文摘要
在本文中，我们介绍了中央分子区（CMZ）内CMZOOM调查的紧凑源（<10''，〜0.4pc）的目录。 CMZOOM是一款亚音符阵列（SMA）大型程序，旨在提供所有高柱密度气体的完整且无偏的地图（N（H $ _2 $）$ \ geq $ 10 $^{23} $ CM $^{ - 2} $的1.3mm Dustuum Continuum in 1.3mm dustuum in 1.3mm dustuum of 1.3mm dust的Galaxy的基础。我们同时生成了旨在减少虚假源检测的强大目录，也生成了第二个具有更高完整性的目录，均使用修剪的树状图生成。在强大的目录中，我们报告了285个紧凑型源，或在高完整性目录中的816个。这些来源的有效半径在0.04-0.4 PC之间，并且是星形簇的潜在祖细胞。两种目录的质量都由射手座B2云配合物主导，在射手座B2云配合物中，由于自由污染，不确定的灰尘温度和视线混乱，质量可能不可靠。鉴于调查的选择和完整性，我们预测我们的强大目录占约99％的紧凑型亚结构，能够在CMZ中形成高质量恒星。该目录为在银河系的银河系中心对未来的高质量恒星形成的研究奠定了至关重要的基础。
In this paper we present the CMZoom Survey's catalog of compact sources (< 10'', ~0.4pc) within the Central Molecular Zone (CMZ). CMZoom is a Submillimeter Array (SMA) large program designed to provide a complete and unbiased map of all high column density gas (N(H$_2$) $\geq$ 10$^{23}$ cm$^{-2}$) of the innermost 500pc of the Galaxy in the 1.3mm dust continuum. We generate both a robust catalog designed to reduce spurious source detections, and a second catalog with higher completeness, both generated using a pruned dendrogram. In the robust catalog, we report 285 compact sources, or 816 in the high completeness catalog. These sources have effective radii between 0.04-0.4 pc, and are the potential progenitors of star clusters. The masses for both catalogs are dominated by the Sagittarius B2 cloud complex, where masses are likely unreliable due to free-free contamination, uncertain dust temperatures, and line-of-sight confusion. Given the survey selection and completeness, we predict that our robust catalog accounts for more than ~99% of compact substructure capable of forming high mass stars in the CMZ. This catalog provides a crucial foundation for future studies of high-mass star formation in the Milky Way's Galactic Center.
