The second Herschel–ATLAS Data Release – III. Optical and near-infrared counterparts in the North Galactic Plane field
The second Herschel–ATLAS Data Release – III. Optical and near-infrared counterparts in the North Galactic Plane field
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第二次赫歇尔-阿特拉斯数据发布 – III. 北银河面场中的光学和近红外装置
DOI：
10.1093/mnras/sty151
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发表时间：
2017
影响因子：
4.8
通讯作者：
E. Ibar
中科院分区：
文献类型：
--
作者：
C. Furlanetto;C. Furlanetto;S. Dye;N. Bourne;S. Maddox;S. Maddox;L. Dunne;L. Dunne;S. Eales;E. Valiante;M. Smith;Daniel J. B. Smith;R. Ivison;R. Ivison;E. Ibar
本文是赫歇尔天体物理太赫兹大面积调查（H-ATLAS）第二次主要公开数据发布的一部分。在这项工作中，我们描述了识别光学和近红外对应的亚毫米探测源在177度2北银河平面（NGP）领域。我们使用似然比方法来识别斯隆数字巡天和英国红色望远镜成像深空巡天中的对应物，搜索半径为10 arcsec，在250 μm处具有4σ探测的H-ATLAS源。我们获得了42429个H-ATLAS源（37.8%）的可靠（R ≥ 0.8）光学对应物，r < 22.4，估计完整性为71.7%，错误识别率为4.7%.We还确定了近红外的对应物，使用更深的K波段数据，覆盖更小的25 deg 2。我们在该区域内发现了61.8%的250 μ m选定源的可靠近红外对应物。我们评估了似然比方法的性能，以确定光学和近红外同行考虑到两个输入目录的深度和面积。使用在重叠的25 ° 2区域中具有相同表面密度的物体的目录，我们得出近红外的可靠分数（54.8%）明显高于光学的（36.4%）。最后，使用覆盖NGP字段小区域的深层无线电数据，我们发现80%-90%的可靠识别是正确的。
This paper forms part of the second major public data release of the Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS). In this work, we describe the identification of optical and near-infrared counterparts to the submillimetre detected sources in the 177 deg2 North Galactic Plane (NGP) field. We used the likelihood ratio method to identify counterparts in the Sloan Digital Sky Survey and in the United Kingdom InfraRed Telescope Imaging Deep Sky Survey within a search radius of 10 arcsec of the H-ATLAS sources with a 4σ detection at 250 μm. We obtained reliable (R ≥ 0.8) optical counterparts with r < 22.4 for 42 429 H-ATLAS sources (37.8 per cent), with an estimated completeness of 71.7 per cent and a false identification rate of 4.7 per cent. We also identified counterparts in the near-infrared using deeper K-band data which covers a smaller ∼25 deg2. We found reliable near-infrared counterparts to 61.8 per cent of the 250-μm-selected sources within that area. We assessed the performance of the likelihood ratio method to identify optical and near-infrared counterparts taking into account the depth and area of both input catalogues. Using catalogues with the same surface density of objects in the overlapping ∼25 deg2 area, we obtained that the reliable fraction in the near-infrared (54.8 per cent) is significantly higher than in the optical (36.4 per cent). Finally, using deep radio data which covers a small region of the NGP field, we found that 80–90 per cent of our reliable identifications are correct.
斯隆数字巡天第十次数据发布：来自 SDSS-III 阿帕奇点天文台银河演化实验的首个光谱数据
DOI：
10.1088/0067-0049/211/2/17
发表时间：
2014
期刊：
The Astrophysical Journal Supplement Series
影响因子：
--
作者：
Ahn C
通讯作者：
Ahn C
影响因子：
3.5
作者：
S. Eales;L. Dunne;D. Clements;A. Cooray;G. Zotti;S. Dye;R. Ivison;M. Jarvis;G. Lagache
通讯作者：
S. Eales;L. Dunne;D. Clements;A. Cooray;G. Zotti;S. Dye;R. Ivison;M. Jarvis;G. Lagache