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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2601.07162 |
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| _version_ | 1866912817574051840 |
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| author | Gong, Yan Zhong, Jiaqiang Ren, Yuan Zhang, Yilong Liu, Daizhong Ao, Yiping Yao, Qijun Zhang, Wen Miao, Wei Lin, Zhenhui Duan, Wenying Liu, Dong Zhou, Kangmin Liu, Jie Wang, Zheng Jin, Junda Zhang, Kun Wu, Feng Li, Jinpeng Liu, Boliang Zhang, Xuan Luo, Zhengheng Wang, Jiameng Hao, Huiqian Lu, Xingming Xie, Shaoming Quan, Jia Liu, Yanjie Liang, Jingtao Deng, Xianjin Jiang, Jun Li, Li Guo, Liang Ji, Tuo Jiang, Peng Zhang, Yi Shu, Chenggang Neupane, Sudeep Mao, Ruiqing Shi, Shengcai Li, Jing |
| author_facet | Gong, Yan Zhong, Jiaqiang Ren, Yuan Zhang, Yilong Liu, Daizhong Ao, Yiping Yao, Qijun Zhang, Wen Miao, Wei Lin, Zhenhui Duan, Wenying Liu, Dong Zhou, Kangmin Liu, Jie Wang, Zheng Jin, Junda Zhang, Kun Wu, Feng Li, Jinpeng Liu, Boliang Zhang, Xuan Luo, Zhengheng Wang, Jiameng Hao, Huiqian Lu, Xingming Xie, Shaoming Quan, Jia Liu, Yanjie Liang, Jingtao Deng, Xianjin Jiang, Jun Li, Li Guo, Liang Ji, Tuo Jiang, Peng Zhang, Yi Shu, Chenggang Neupane, Sudeep Mao, Ruiqing Shi, Shengcai Li, Jing |
| contents | The cycling of carbon between its ionized, atomic, and molecular phases shapes the chemical compositions and physical conditions of the interstellar medium (ISM). However, ground-based studies of the full carbon cycle have been limited by atmospheric absorption. Dome~A, the most promising site for submillimeter astronomy, has long resisted successful submillimeter astronomical observations. Using the 60~cm Antarctic Terahertz Explorer, we present the first successful CO ($4-3$) and [CI] ($^3P_1 - ^3P_0$) mapping observations of two archetypal triggered massive star-formation regions at Dome~A. These data, together with archival [CII], provide the first complete characterization of all three carbon phases in these environments. We find elevated C$^{0}$/CO abundance ratios in high-extinction regions, plausibly driven by deep penetration of intense radiation fields from massive stars into a clumpy ISM. These findings mark a major milestone for submillimeter astronomy at Dome~A and offer valuable insights into the impact of massive star feedback on the surrounding ISM. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_07162 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | First Submillimeter Lights from Dome A: Tracing the Carbon Cycle in the Feedback of Massive Stars Gong, Yan Zhong, Jiaqiang Ren, Yuan Zhang, Yilong Liu, Daizhong Ao, Yiping Yao, Qijun Zhang, Wen Miao, Wei Lin, Zhenhui Duan, Wenying Liu, Dong Zhou, Kangmin Liu, Jie Wang, Zheng Jin, Junda Zhang, Kun Wu, Feng Li, Jinpeng Liu, Boliang Zhang, Xuan Luo, Zhengheng Wang, Jiameng Hao, Huiqian Lu, Xingming Xie, Shaoming Quan, Jia Liu, Yanjie Liang, Jingtao Deng, Xianjin Jiang, Jun Li, Li Guo, Liang Ji, Tuo Jiang, Peng Zhang, Yi Shu, Chenggang Neupane, Sudeep Mao, Ruiqing Shi, Shengcai Li, Jing Astrophysics of Galaxies The cycling of carbon between its ionized, atomic, and molecular phases shapes the chemical compositions and physical conditions of the interstellar medium (ISM). However, ground-based studies of the full carbon cycle have been limited by atmospheric absorption. Dome~A, the most promising site for submillimeter astronomy, has long resisted successful submillimeter astronomical observations. Using the 60~cm Antarctic Terahertz Explorer, we present the first successful CO ($4-3$) and [CI] ($^3P_1 - ^3P_0$) mapping observations of two archetypal triggered massive star-formation regions at Dome~A. These data, together with archival [CII], provide the first complete characterization of all three carbon phases in these environments. We find elevated C$^{0}$/CO abundance ratios in high-extinction regions, plausibly driven by deep penetration of intense radiation fields from massive stars into a clumpy ISM. These findings mark a major milestone for submillimeter astronomy at Dome~A and offer valuable insights into the impact of massive star feedback on the surrounding ISM. |
| title | First Submillimeter Lights from Dome A: Tracing the Carbon Cycle in the Feedback of Massive Stars |
| topic | Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2601.07162 |