Survey of Ionized Gas of the Galaxy, Made with the Arecibo Telescope (SIGGMA): Inner Galaxy Data Release
Survey of Ionized Gas of the Galaxy, Made with the Arecibo Telescope (SIGGMA): Inner Galaxy Data Release
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使用阿雷西博望远镜 (SIGGMA) 进行的星系电离气体调查:内星系数据发布
DOI:
10.3847/1538-4365/aaef8e
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发表时间:
2019-01
期刊:
影响因子:
--
通讯作者:
Terzian Yervant
中科院分区:
文献类型:
--
作者:
刘彬;Anderson L. D.;McIntyre Travis;Anish Roshi D.;Churchwell Ed;Minchin Robert;Terzian Yervant
The Survey of Ionized Gas of the Galaxy, Made with the Arecibo telescope (SIGGMA) provides a fully sampled view of the radio recombination line (RRL) emission from the portion of the Galactic plane visible with Arecibo. Observations use the Arecibo L-band Feed Array, which has a FWHM beam size of 3.′4. Twelve hydrogen RRLs from H163α to H174α are located within the instantaneous bandpass from 1225 MHz to 1525 MHz. We provide here cubes of average (“stacked”) RRL emission for the inner Galaxy region 32° ≤ ℓ ≤ 70°, , with an angular resolution of 6′. The stacked RRL rms at 5.1 km s−1 velocity resolution is ∼0.65 mJy beam−1, making this the most sensitive large-scale fully sampled RRL survey extant. We use SIGGMA data to catalog 319 RRL detections in the direction of 244 known H ii regions, and 108 new detections in the direction of 79 H ii region candidates. We identify 11 carbon RRL emission regions, all of which are spatially coincident with known H ii regions. We detect RRL emission in the direction of 14 of the 32 supernova remnants (SNRs) found in the survey area. This RRL emission frequently has the same morphology as the SNRs. The RRL velocities give kinematic distances in agreement with those found in the literature, indicating that RRLs may provide an additional tool to constrain distances to SNRs. Finally, we analyze the two bright star-forming complexes: W49 and W51. We discuss the possible origins of the RRL emission in directions of SNRs W49B and W51C.
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DOI:
10.1086/303527
发表时间:
1997-01
期刊:
The Astrophysical Journal
影响因子:
--
作者:
B. Koo;D. moon
通讯作者:
B. Koo;D. moon
影响因子:
4.8
作者:
L. Jones;Alan Smith;L. Angelini
通讯作者:
L. Jones;Alan Smith;L. Angelini
DOI:
10.1086/175033
发表时间:
1994-12
期刊:
The Astrophysical Journal
影响因子:
--
作者:
D. Moffett;S. Reynolds
通讯作者:
D. Moffett;S. Reynolds
DOI:
10.1086/156131
发表时间:
1978-05
期刊:
The Astrophysical Journal
影响因子:
--
作者:
F. J. Lockman;R. L. Brown
通讯作者:
F. J. Lockman;R. L. Brown
DOI:
10.1086/110509
发表时间:
1967-10
期刊:
The Astronomical Journal
影响因子:
--
作者:
P. Mezger;J. Schraml;Y. Terzian
通讯作者:
P. Mezger;J. Schraml;Y. Terzian