CHIMPS2：巡天描述与银心区12CO发射
星系天体物理
2020-10-14 v1 太阳与恒星天体物理
摘要
最新一代银道面巡天正增强我们研究星系环境对恒星形成过程影响的能力。我们呈现了CO外差内银河系平面巡天2（CHIMPS2）的首批数据。CHIMPS2是一项将使用James Clerk Maxwell望远镜（JCMT）上的Heterodyne Array Receiver Program，以12CO、13CO和C18O (J = 3→2)发射观测内银河系、中心分子区（CMZ）及外银河系一部分区域的巡天。此处呈现的首批CHIMPS2数据是对CMZ在12CO J = 3→2方面的初步观测，覆盖-3°≤ ℓ ≤ 5°且 |b| ≤ 0.5°，角分辨率15角秒，速度分辨率1 km s^{-1}，在这些分辨率下rms ΔT_A^* = 0.58 K。此类对CMZ的高分辨率观测将成为未来研究的宝贵数据集，同时补充现有银道面巡天如SEDIGISM、Herschel红外银道面巡天和ATLASGAL。本文中，我们讨论巡天计划、当前观测与数据，并呈现该区的位置-位置图。位置-速度图在吸收与发射中均探测到前景旋臂。
引用
@article{arxiv.2009.05073,
title = {CHIMPS2: Survey description and $^{12}$CO emission in the Galactic Centre},
author = {D. J. Eden and T. J. T. Moore and M. J. Currie and A. J. Rigby and E. Rosolowsky and Y. Su and Kee-Tae Kim and H. Parsons and O. Morata and H. -R. Chen and T. Minamidani and Geumsook Park and S. E. Ragan and J. S. Urquhart and R. Rani and K. Tahani and S. J. Billington and S. Deb and C. Figura and T. Fujiyoshi and G. Joncas and L. W. Liao and T. Liu and H. Ma and P. Tuan-Anh and Hyeong-Sik Yun and S. Zhang and M. Zhu and J. D. Henshaw and S. N. Longmore and M. I. N. Kobayashi and M. A. Thompson and Y. Ao and J. Campbell-White and T. -C. Ching and E. J. Chung and A. Duarte-Cabral and M. Fich and Y. Gao and S. F. Graves and X. -J. Jiang and F. Kemper and Y. -J. Kuan and W. Kwon and C. W. Lee and J. -E. Lee and M. Liu and C. H. Penaloza and N. Peretto and N. T. Phuong and J. E. Pineda and R. Plume and E. Puspitaningrum and M. R. Samal and A. Soam and Y. Sun and X. D. Tang and A. Traficante and G. J. White and C. -H. Yan and A. Yang and J. Yuan and N. Yue and A. Bemis and C. M. Brunt and Z. Chen and J. Cho and P. C. Clark and C. J. Cyganowski and P. Friberg and G. A. Fuller and I. Han and M. G. Hoare and N. Izumi and H. -J. Kim and J. Kim and S. Kim and E. W. Koch and N. Kuno and K. M. Lacialle and S. -P. Lai and H. Lee Y. -H. Lee and D. L. Li and S. -Y. Liu and S. Mairs and T. Oka and Z. Pan and L. Qian and P. Scicluna and C. -S. Shi and H. Shi and S. Srinivasan and Q. -H. Tan and H. S. Thomas and K. Torii and A. Trejo and T. Umemoto and G. Violino and S. Wallstrom and B. Wang and Y. Wu and L. Yuan and C. Zhang and M. Zhang and C. Zhou and J. J. Zhou},
journal= {arXiv preprint arXiv:2009.05073},
year = {2020}
}
备注
18 pages, 14 figures, accepted for publication in MNRAS