SIGNALS 巡天：I. 巡天概述
星系天体物理
2019-10-02 v1
摘要
SIGNALS，即恒星形成、电离气体与星云丰度遗留巡天 (Star formation, Ionized Gas, and Nebular Abundances Legacy Survey)，是一项旨在研究本地延展星系样本中大质量恒星形成和 HII 区的大型观测计划。该计划将使用加拿大-法国-夏威夷望远镜上的成像傅里叶变换光谱仪 SITELLE。已从 2018 年秋季开始的连续八个学期分配了 355 小时（54.7 夜）的观测时间。完成后，SIGNALS 将提供一个统计上可靠的实验室来研究大质量恒星形成，包括超过 50 000 个分辨的 HII 区：迄今组装的最大、最完整、最均一的谱学与空间分辨河外 HII 区数据库。对于每个观测视场，收集覆盖 SN1 (363–386 nm)、SN2 (482–513 nm) 和 SN3 (647–685 nm) 滤光片光谱波段的三个数据立方体。各光谱带选择的光谱分辨率分别为 1000、1000 和 5000。按此定义，项目样本将以 20 pc 的平均空间分辨率促进小尺度星云物理及许多其他与恒星形成相关现象的研究。该巡天对行星状星云、弥漫电离气体和超新星遗迹等附加课题也具有显著的遗留价值。本文旨在呈现巡天的总体展望，特别是观测策略、星系样本和科学需求。
引用
@article{arxiv.1908.09017,
title = {SIGNALS: I. Survey Description},
author = {L. Rousseau-Nepton and R. P. Martin and C. Robert and L. Drissen and P. Amram and S. Prunet and T. Martin and I. Moumen and A. Adamo and A. Alarie and P. Barmby and A. Boselli and F. Bresolin and M. Bureau and L. Chemin and R. C. Fernandes and F. Combes and C. Crowder and L. Della Bruna and F. Egusa and B. Epinat and V. F. Ksoll and M. Girard and V. Gómez Llanos and D. Gouliermis and K. Grasha and C. Higgs and J. Hlavacek-Larrondo and I. -T. Ho and J. Iglesias-Páramo and G. Joncas and Z. S. Kam and P. Karera and R. C. Kennicutt and R. S. Klessen and S. Lianou and L. Liu and Q. Liu and A. Luiz de Amorim and J. D. Lyman and H. Martel and B. Mazzilli-Ciraulo and A. F. McLeod and A-L. Melchior and I. Millan and M. Mollá and R. Momose and C. Morisset and H. -A. Pan and A. K. Pati and A. Pellerin and E. Pellegrini and I. Pérez and A. Petric and H. Plana and D. Rahner and T. Ruiz Lara and L. Sánchez-Menguiano and K. Spekkens and G. Stasińska and M. Takamiya and N. Vale Asari and J. M. Vílchez},
journal= {arXiv preprint arXiv:1908.09017},
year = {2019}
}
备注
19 pages, 14 figures, submitted to MNRAS