The Herschel SPIRE Fourier Transform Spectrometer Spectral Feature Finder - V. Rotational measurements of NGC 891

被引：0
|
作者：
Benson, Chris S. [1 ]
Spencer, L. D. [1 ]
Valtchanov, I [2 ]
Scott, J. [1 ]
Hladczuk, N. [3 ,4 ]
机构：
[1] Univ Lethbridge, Inst Space Imaging Sci, Departmentof Phys & Astron, 4401 Univ Dr, Lethbridge, AB T1K 3M4, Canada
[2] European Space Astron Ctr, Operat Dept, Telespazio Vega UK ESA, E-28691 Villanueva De La Canada, Spain
[3] European Space Astron Ctr, ESA, Camino Bajo Castillo, E-28692 Madrid, Spain
[4] Gran TeCan SA, Inst Astrofis Canarias, C Via Lactea S-N, E-38205 San Cristobal De Laguna, Sc De Tenerife, Spain
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2021年 / 500卷 / 03期
基金：
美国国家航空航天局; 加拿大自然科学与工程研究理事会;
关键词：
methods: data analysis; techniques: imaging spectroscopy; techniques: spectroscopic; galaxies: ISM; galaxies: kinematics and dynamics; submillimetre: galaxies; IONIZED-GAS; MOLECULAR GAS; DISK; KINEMATICS; NGC-891; HALO;
D O I：
10.1093/mnras/staa3448
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The ESA Herschel Spectral and Photometric Imaging Receiver (SPIRE) Fourier Transform Spectrometer (FTS) Spectral Feature Finder (FF) project is an automated spectral feature fitting routine developed within the SPIRE instrument team to extract all prominent spectral features from all publicly available SPIRE FTS observations. In this work, we demonstrate the use of the FF information extracted from three observations of the edge-on spiral galaxy NGC 891 to measure the rotation of NII and CI gas at far-infrared frequencies in complement to radio observations of the [HI] 21-cm line and the CO(1-0) transition as well as optical measurements of H alpha. We find that measurements of both NII and CI gas follow a similar velocity profile to that of HI and H alpha showing a correlation between neutral and ionized regions of the interstellar medium in the disc of NGC 891.
引用
收藏
页码：3711 / 3718
页数：8
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