SCOPE: SCUBA-2 原原恒星演化连续谱观测——巡天描述与致密源星表
星系天体物理
2019-03-06 v1 太阳与恒星天体物理
摘要
我们呈现 JCMT 大计划 SCUBA-2 原原恒星演化连续谱观测(SCOPE)的首批数据与致密源星表。SCOPE 包含使用詹姆斯·克拉克·麦克斯韦望远镜上的亚毫米波通用用户辐射热计阵列 2 对 1235 个 Planck 银河系冷团(PGCCs)进行的 850 微米连续谱观测。这些数据角分辨率为 14.4 角秒，显著优于 Planck 在 5 角分处的 353 GHz 分辨率，并得以编制出 558 个 PGCCs 中的 3528 个致密源星表。我们发现被探测到的 PGCCs 具有显著子结构，61% 的被探测 PGCCs 含有 3 个或更多致密源，丝状结构在该样本中同样普遍。全巡天探测率为 45%，对 5 10 cm 的 Planck 柱密度具有 95% 的完备性。通过将 SCOPE 致密源与 YSOs 进行位置关联，发现近邻云中由光度与质量之比衡量的恒星形成效率与更遥远的银道面中相似，其柱密度分布彼此亦不可区分。
引用
@article{arxiv.1902.10180,
title = {SCOPE: SCUBA-2 Continuum Observations of Pre-protostellar Evolution - Survey Description and Compact Source Catalogue},
author = {D. J. Eden and Tie Liu and Kee-Tae Kim and S. -Y. Liu and K. Tatematsu and J. Di Francesco and K. Wang and Y. Wu and M. A. Thompson and G. A. Fuller and Di Li and I. Ristorcelli and Sung-ju Kang and N. Hirano and D. Johnstone and Y. Lin and J. H. He and P. M. Koch and Patricio Sanhueza and S. -L. Qin and Q. Zhang and P. F. Goldsmith and N. J. Evans and J. Yuan and C. -P. Zhang and G. J. White and Minho Choi and Chang Won Lee and L. V. Toth and S. Mairs and H. -W. Yi and M. Tang and A. Soam and N. Peretto and M. R. Samal and M. Fich and H. Parsons and J. Malinen and G. J. Bendo and A. Rivera-Ingraham and H. -L. Liu and J. Wouterloot and P. S. Li and L. Qian and J. Rawlings and M. G. Rawlings and S. Feng and B. Wang and Dalei Li and M. Liu and G. Luo and A. P. Marston and K. M. Pattle and V. -M. Pelkonen and A. J. Rigby and S. Zahorecz and G. Zhang and R. Bogner and Y. Aikawa and S. Akhter and D. Alina and G. Bell and J. -P. Bernard and A. Blain and L. Bronfman and D. -Y. Byun and S. Chapman and H. -R. Chen and M. Chen and W. -P. Chen and X. Chen and Xuepeng Chen and A. Chrysostomou and Y. -H. Chu and E. J. Chung and D. Cornu and G. Cosentino and M. R. Cunningham and K. Demyk and E. Drabek-Maunder and Y. Doi and C. Eswaraiah and E. Falgarone and O. Feher and H. Fraser and P. Friberg and G. Garay and J. X. Ge and W. K. Gear and J. Greaves and X. Guan and L. Harvey-Smith and T. Hasegawa and Y. He and C. Henkel and T. Hirota and W. Holland and A. Hughes and E. Jarken and T. -G. Ji and I. Jimenez-Serra and Miju Kang and K. S. Kawabata and Gwanjeong Kim and Jungha Kim and Jongsoo Kim and S. Kim and B. -C. Koo and Woojin Kwon and Y. -J. Kuan and K. M. Lacaille and S. -P. Lai and C. F. Lee and J. E. Lee and Y. -U. Lee and H. Li and N. Lo and J. A. P. Lopez and X. Lu and A. -R. Lyo and D. Mardones and P. McGehee and F. Meng and L. Montier and J. Montillaud and T. J. T. Moore and O. Morata and G. H. Moriarty-Schieven and S. Ohashi and S. Pak and Geumsook Park and R. Paladini and G. Pech and K. Qiu and Z. -Y. Ren and J. Richer and T. Sakai and H. Shang and H. Shinnaga and D. Stamatellos and Y. -W. Tang and A. Traficante and C. Vastel and S. Viti and A. Walsh and H. Wang and J. Wang and D. Ward-Thompson and A. Whitworth and C. D. Wilson and Y. Xu and J. Yang and Y. -L. Yuan and L. Yuan and A. Zavagno and C. Zhang and G. Zhang and H. -W. Zhang and C. Zhou and J. Zhou. L. Zhu and P. Zuo},
journal= {arXiv preprint arXiv:1902.10180},
year = {2019}
}
备注
16 pages, 13 figures, 1 table. Accepted for publication in MNRAS