Herschel揭示的Rosette分子云中的小尺度结构
星系天体物理
2015-05-19 v1
摘要
我们展示了利用Herschel空间天文台的SPIRE和PACS仪器获得的Rosette分子云(RMC)新的70-520微米连续谱图中发现的小尺度结构的初步分析。我们使用一种新的结构识别算法在RMC中发现了473个团块，其直径最大约为1.0 pc。与最近的Spitzer巡天图比较显示，371个团块是“无星”的（没有相关的年轻恒星天体），而102个是“原恒星”的。利用相应的尘埃温度值，我们确定团块的质量(M_C)范围在-0.75 <= log (M_C/M_sun) <= 2.50。对所得团块质量谱(CMS)的高质量尾部的线性拟合斜率，与其他团队在CO发射中识别的高质量团块所发现的斜率一致。
引用
@article{arxiv.1005.3784,
title = {Small-scale structure in the Rosette molecular cloud revealed by Herschel},
author = {J. Di Francesco and S. Sadavoy and F. Motte and N. Schneider and M. Hennemann and S. Bontemps and T. Csengeri and Z. Balog and A. Zavagno and Ph. Andre and P. Saraceno and M. Griffin and A. Men'shchikov and A. Abergel and J. -P. Baluteau and J. -Ph. Bernard and P. Cox and L. Deharveng and P. Didelon and A. -M. di Giorgio and P. Hargrave and M. Huang and J. Kirk and S. Leeks and J. Z. Li and A. Marston and P. Martin and V. Minier and S. Molinari and G. Olofsson and P. Persi and S. Pezzuto and D. Russeil and M. Sauvage and B. Sibthorpe and L. Spinoglio and L. Testi and D. Teyssier and R. Vavrek and D. Ward-Thompson and G. White and C. Wilson and A. Woodcraft},
journal= {arXiv preprint arXiv:1005.3784},
year = {2015}
}
备注
6 pages, to be published in Astronomy & Astrophysics