赫歇尔-SPIRE对受扰星系NGC4438的观测
宇宙学与河外天体物理
2015-05-19 v1
摘要
我们展示了赫歇尔-SPIRE对室女星系团中受扰星系NGC4438的观测。这些图像揭示了距离星系盘约4-5千秒差距处存在盘外尘埃。尘埃紧密跟随被剥离的原子和分子氢的分布，支持了气体和尘埃以类似方式受到星系团环境扰动的观点。有趣的是，与仍存在于盘中的物质相比，盘外尘埃缺乏暖温成分，这解释了为何之前的远红外研究未能探测到它。我们的研究为星系团中的尘埃剥离提供了证据，并展示了赫歇尔数据对于我们理解环境对星系演化的影响的潜力。
引用
@article{arxiv.1005.2331,
title = {Herschel-SPIRE observations of the disturbed galaxy NGC4438},
author = {L. Cortese and G. J. Bendo and A. Boselli and J. I. Davies and H. L. Gomez and M. Pohlen and R. Auld and M. Baes and J. J. Bock and M. Bradford and V. Buat and N. Castro-Rodriguez and P. Chanial and S. Charlot and L. Ciesla and D. L. Clements and A. Cooray and D. Cormier and E. Dwek and S. A. Eales and D. Elbaz and M. Galametz and F. Galliano and W. K. Gear and J. Glenn and M. Griffin and S. Hony and K. G. Isaak and L. R. Levenson and N. Lu and S. Madden and B. O'Halloran and K. Okumura and S. Oliver and M. J. Page and P. Panuzzo and A. Papageorgiou and T. J. Parkin and I. Perez-Fournon and N. Rangwala and E. E. Rigby and H. Roussel and A. Rykala and N. Sacchi and M. Sauvage and B. Schulz and M. R. P. Schirm and M. W. L. Smith and L. Spinoglio and J. A. Stevens and S. Srinivasan and M. Symeonidis and M. Trichas and M. Vaccari and L. Vigroux and C. D. Wilson and H. Wozniak and G. S. Wright and W. W. Zeilinger},
journal= {arXiv preprint arXiv:1005.2331},
year = {2015}
}
备注
5 pages, 2 figures. Accepted for publication on the A&A Herschel Special Issue