arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2203.06175astro-ph.SRastro-ph.GAastro-ph.IM
收藏

intEgraL fieLd unIt daTacubEs(卫星)的光谱分析工具:NGC 7009和NGC 6778与MUSE的案例研究

Spectroscopic Analysis Tool for intEgraL fieLd unIt daTacubEs (satellite): Case studies of NGC 7009 and NGC 6778 with MUSE

S. Akras, H. Monteiro, J. R. Walsh, J. García-Rojas, I. Aleman, H. Boffin, P. Boumis, A. Chiotellis, R. M. L. Corradi, D. R. Gonçalves, L. A. Gutiérrez-Soto, D.… 展开作者

S. Akras, H. Monteiro, J. R. Walsh, J. García-Rojas, I. Aleman, H. Boffin, P. Boumis, A. Chiotellis, R. M. L. Corradi, D. R. Gonçalves, L. A. Gutiérrez-Soto, D. Jones, C. Morisset, X. Papanikolaou

摘要:

积分场光谱学(IFS)提供了一种独特的能力,光谱研究扩展源的二维视场,但它也需要新的技术和工具。在本文中,我们提出了一个自动代码,光谱分析工具intEgraL fieLd单元daTacubEs,卫星,旨在充分探索这种能力的扩展对象的特性,如行星状星云,H II区域,星系等。卫星进行1D和2D光谱分析,通过一些伪狭缝模拟狭缝光谱,以及发射线成像。一维分析允许直接比较积分场单元(IFU)数据与以前的研究的基础上长缝光谱,而二维分析允许在两个空间方向上的物理性质的探索。星际消光,电子温度和密度,离子丰度从碰撞激发线,总元素丰度和电离校正因子计算采用Pyneb包。一个蒙特卡罗方法实现的代码来计算所有的物理参数的不确定性。SATELLITE提供了一个强大的工具,以自动和用户可配置的方式从IFS观测中提取物理信息。通过比较行星状星云NGC 7009的多单元光谱探测器(MUSE)数据与文献中提供的长缝和IFU数据获得的结果,证明了SATELLITE的能力和性能。本文还介绍了基于MUSE数据的NGC6778的卫星特征。

英文摘要:

Integral field spectroscopy (IFS) provides a unique capability to spectroscopically study extended sources over a 2D field of view, but it also requires new techniques and tools. In this paper, we present an automatic code, Spectroscopic Analysis Tool for intEgraL fieLd unIt daTacubEs, SATELLITE, designed to fully explore such capability in the characterization of extended objects, such as planetary nebulae, H II regions, galaxies, etc. SATELLITE carries out 1D and 2D spectroscopic analysis through a number of pseudo-slits that simulate slit spectrometry, as well as emission line imaging. The 1D analysis permits direct comparison of the integral field unit (IFU) data with previous studies based on long-slit spectroscopy, while the 2D analysis allows the exploration of physical properties in both spatial directions. Interstellar extinction, electron temperatures and densities, ionic abundances from collisionally excited lines, total elemental abundances and ionization correction factors are computed employing the Pyneb package. A Monte Carlo approach is implemented in the code to compute the uncertainties for all the physical parameters. SATELLITE provides a powerful tool to extract physical information from IFS observations in an automatic and user configurable way. The capabilities and performance of SATELLITE are demonstrated by means of a comparison between the results obtained from the Multi Unit Spectroscopic Explorer (MUSE) data of the planetary nebula NGC 7009 with the results obtained from long-slit and IFU data available in the literature. The SATELLITE characterization of NGC 6778 based on MUSE data is also presented.

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。

↑