arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1908.09017astro-ph.GA
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SIGNALS:I.调查说明

SIGNALS: I. Survey Description

L. Rousseau-Nepton, R. P. Martin, C. Robert, L. Drissen, P. Amram, S. Prunet, T. Martin, I. Moumen, A. Adamo, A. Alarie, P. Barmby, A. Boselli, F. Bresolin, M. … 展开作者

L. Rousseau-Nepton, R. P. Martin, C. Robert, L. Drissen, P. Amram, S. Prunet, T. Martin, I. Moumen, A. Adamo, A. Alarie, P. Barmby, A. Boselli, F. Bresolin, M. Bureau, L. Chemin, R. C. Fernandes, F. Combes, C. Crowder, L. Della Bruna, F. Egusa, B. Epinat, V. F. Ksoll, M. Girard, V. Gómez Llanos, D. Gouliermis, K. Grasha, C. Higgs, J. Hlavacek-Larrondo, I. -T. Ho, J. Iglesias-Páramo, G. Joncas, Z. S. Kam, P. Karera, R. C. Kennicutt, R. S. Klessen, S. Lianou, L. Liu, Q. Liu, A. Luiz de Amorim, J. D. Lyman, H. Martel, B. Mazzilli-Ciraulo, A. F. McLeod, A-L. Melchior, I. Millan, M. Mollá, R. Momose, C. Morisset, H. -A. Pan, A. K. Pati, A. Pellerin, E. Pellegrini, I. Pérez, A. Petric, H. Plana, D. Rahner, T. Ruiz Lara, L. Sánchez-Menguiano, K. Spekkens, G. Stasińska, M. Takamiya, N. Vale Asari, J. M. Vílchez

摘要:

SIGNALS,恒星形成,电离气体和星云丰度遗产调查,是一个大型观测计划,旨在调查本地扩展星系样本中的大质量恒星形成和HII区域。该计划将使用加拿大-法国-夏威夷望远镜的成像傅里叶变换光谱仪SITELLE。超过355小时(54.7晚)已分配开始在秋季2018年连续八个学期。一旦完成,SIGNALS将提供一个统计上可靠的实验室来研究大质量恒星的形成,包括超过50,000个已分辨的HII区域:有史以来最大,最完整,最均匀的光谱和空间分辨的河外HII区域数据库。对于观察到的每个场,收集覆盖滤光片SN 1(363 - 386 nm)、SN 2(482 - 513 nm)和SN 3(647 - 685 nm)光谱带的三个数据立方体。为每个光谱带选择的光谱分辨率分别为1000、1000和5000。根据定义,该项目样品将促进以20 pc的平均空间分辨率研究小尺度星云物理学和与恒星形成有关的许多其他现象。这项调查也有相当大的遗产价值的其他议题,包括行星状星云,弥漫电离气体,和超新星遗迹。本文的目的是提出一个调查的总体展望,特别是观测策略,星系样本,和科学要求。

英文摘要:

SIGNALS, the Star formation, Ionized Gas, and Nebular Abundances Legacy Survey, is a large observing program designed to investigate massive star formation and HII regions in a sample of local extended galaxies. The program will use the imaging Fourier transform spectrograph SITELLE at the Canada-France-Hawaii Telescope. Over 355 hours (54.7 nights) have been allocated beginning in fall 2018 for eight consecutive semesters. Once completed, SIGNALS will provide a statistically reliable laboratory to investigate massive star formation, including over 50 000 resolved HII regions : the largest, most complete, and homogeneous database of spectroscopically and spatially resolved extragalactic HII regions ever assembled. For each field observed, three datacubes covering the spectral bands of the filters SN1 (363 -386 nm), SN2 (482 - 513 nm), and SN3 (647 - 685 nm) are gathered. The spectral resolution selected for each spectral band is 1000, 1000, and 5000, respectively. As defined, the project sample will facilitate the study of small-scale nebular physics and many other phenomena linked to star formation at a mean spatial resolution of 20 pc. This survey also has considerable legacy value for additional topics including planetary nebulae, diffuse ionized gas, andsupernova remnants. The purpose of this paper is to present a general outlook of the survey, notably the observing strategy, galaxy sample, and science requirements.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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