高氘丰度分子云核:Nobeyama巡天测绘

Ken'ichi Tatematsu; Gwanjeong Kim; Tie Liu; Neal J. Evans; Hee-Weon Yi; Jeong-Eun Lee; Yuefang Wu; Naomi Hirano; Sheng-Yuan Liu; Somnath Dutta; Dipen Sahu; Patricio Sanhueza; Kee-Tae Kim; Mika Juvela; L. Viktor T'oth; Orsolya Feh'er; Jinhua He; J. X. Ge; Siyi Feng; Minho Choi; Miju Kang; Mark A. Thompson; Gary A. Fuller; Di Li; Isabelle Ristorcelli; Ke Wang; James Di Francesco; David Eden; Satoshi Ohashi; Ryo Kandori; Charlotte Vastel; Tomoya Hirota; Takeshi Sakai; Xing Lu; Quang Nguyen Lu'o'ng; Hiroko Shinnaga; Jungha Kim; JCMT Large Program "SCOPE'' collaboration

doi:10.3847/1538-4365/ac0978

高氘丰度分子云核:Nobeyama巡天测绘

星系天体物理 2022-05-26 v1

作者: Ken'ichi Tatematsu , Gwanjeong Kim , Tie Liu , Neal J. Evans , Hee-Weon Yi , Jeong-Eun Lee , Yuefang Wu , Naomi Hirano , Sheng-Yuan Liu , Somnath Dutta , Dipen Sahu , Patricio Sanhueza , Kee-Tae Kim , Mika Juvela , L. Viktor T'oth , Orsolya Feh'er , Jinhua He , J. X. Ge , Siyi Feng , Minho Choi , Miju Kang , Mark A. Thompson , Gary A. Fuller , Di Li , Isabelle Ristorcelli , Ke Wang , James Di Francesco , David Eden , Satoshi Ohashi , Ryo Kandori , Charlotte Vastel , Tomoya Hirota , Takeshi Sakai , Xing Lu , Quang Nguyen Lu'o'ng , Hiroko Shinnaga , Jungha Kim , JCMT Large Program "SCOPE'' collaboration

在 arXiv 上查看 ↗ PDF ↗ DOI ↗

摘要

我们展示了使用Nobeyama 45米望远镜在82 $-$ 94 GHz分子N $_2$ H $^+$ 、HC $_3$ N和CCS发射线对包含107个SCUBA-2核的44个视场进行的on-the-fly测绘观测结果。本研究旨在调查具有高氘丰度且可能接近恒星形成起始的核的物理性质。我们发现N $_2$ H $^+$ 和HC $_3$ N线发射的分布近似类似于850- $\mu$ m尘埃连续发射的分布,而CCS线发射通常未被探测到或分布为环绕850- $\mu$ m尘埃连续发射峰值位置的团块状结构。偶尔(12%),我们观测到作为年轻恒星天体早期气体示踪物的CCS发射,可能由于局部高激发。向恒星形成的演化不会立即影响非热速度弥散。

关键词

分子云核氘丰度 Nobeyama巡天 SCUBA-2核恒星形成 N$_2$H$^+$ CCS

引用

@article{arxiv.2106.04052,
  title  = {Molecular Cloud Cores with High Deuterium Fractions: Nobeyama Mapping Survey},
  author = {Ken'ichi Tatematsu and Gwanjeong Kim and Tie Liu and Neal J. Evans and Hee-Weon Yi and Jeong-Eun Lee and Yuefang Wu and Naomi Hirano and Sheng-Yuan Liu and Somnath Dutta and Dipen Sahu and Patricio Sanhueza and Kee-Tae Kim and Mika Juvela and L. Viktor T'oth and Orsolya Feh'er and Jinhua He and J. X. Ge and Siyi Feng and Minho Choi and Miju Kang and Mark A. Thompson and Gary A. Fuller and Di Li and Isabelle Ristorcelli and Ke Wang and James Di Francesco and David Eden and Satoshi Ohashi and Ryo Kandori and Charlotte Vastel and Tomoya Hirota and Takeshi Sakai and Xing Lu and Quang Nguyen Lu'o'ng and Hiroko Shinnaga and Jungha Kim and JCMT Large Program "SCOPE'' collaboration},
  journal= {arXiv preprint arXiv:2106.04052},
  year   = {2022}
}

备注

45 pages, 15 figures, ApJS, in press

高氘丰度分子云核:Nobeyama巡天测绘

摘要

关键词

引用

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