A three-dimensional extinction map of the Galactic anticentre from multiband photometry
文献类型：期刊论文
| 作者 | Chen, B. -Q.1; Liu, X. -W.1,2; Yuan, H. -B.2; Zhang, H. -H.1; Schultheis, M.3; Jiang, B. -W.4; Huang, Y.1 ; Xiang, M. -S.1; Zhao, H. -B.5; Yao, J. -S.5
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2014-09-11 |
| 卷号 | 443期号:2页码:1192-1210 |
| ISSN号 | 0035-8711 |
| 关键词 | dust, extinction Galaxy: disc Galaxy: stellar content Galaxy: structure |
| 英文摘要 | We present a three-dimensional extinction map in the r band. The map has a spatial angular resolution, depending on latitude, between 3 and 9 arcmin and covers the entire Xuyi Schmidt Telescope Photometric Survey of the Galactic Anticentre (XSTPS-GAC) survey area of over 6000 deg(2) for Galactic longitude 140 < l < 240 deg and latitude -60 < b < 40 deg. By cross-matching the photometric catalogue of the XSTPS-GAC with those of 2MASS and WISE, we have built a multiband photometric stellar sample of about 30 million stars and applied spectral energy distribution (SED) fitting to the sample. By combining photometric data from the optical to the near-infrared, we are able to break the degeneracy between the intrinsic stellar colours and the amounts of extinction by dust grains for stars with high photometric accuracy, and trace the extinction as a function of distance for low Galactic latitude and thus highly extincted regions. This has allowed us to derive the best-fitting extinction and distance information of more than 13 million stars, which are used to construct the three-dimensional extinction map. We have also applied a Rayleigh-Jeans colour excess (RJCE) method to the data using the 2MASS and WISE colour (H - W2). The resulting RJCE extinction map is consistent with the integrated two-dimensional map deduced using the best-fitting SED algorithm. However for individual stars, the amounts of extinction yielded by the RJCE method suffer from larger errors than those given by the best-fitting SED algorithm. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | DIGITAL SKY SURVEY ; MILKY-WAY TOMOGRAPHY ; STANDARD STELLAR LIBRARY ; STAR-FORMING REGIONS ; COLOR EXCESS METHOD ; FINAL DATA RELEASE ; 8.0 MU-M ; INTERSTELLAR EXTINCTION ; MOLECULAR CLOUDS ; HIGH-RESOLUTION |
| 收录类别 | SCI |
| 原文出处 | 10.1093/mnras/stu1192 |
| 语种 | 英语 |
| WOS记录号 | WOS:000340436800018 |
| 公开日期 | 2014-11-20 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/10662]  |
| 专题 | 紫金山天文台_盱眙天文观测站 |
| 作者单位 | 1.Peking Univ, Dept Astron, Beijing 100871, Peoples R China 2.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 3.Univ Nice Sophia Antipolis, Lab Cassiopee, CNRS, Observ Cote Azur, F-06304 Nice 4, France 4.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China 5.Chinese Acad Sci, Purple Mt Observ, Nanjing 21008, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, B. -Q.,Liu, X. -W.,Yuan, H. -B.,et al. A three-dimensional extinction map of the Galactic anticentre from multiband photometry[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2014,443(2):1192-1210. |
| APA | Chen, B. -Q..,Liu, X. -W..,Yuan, H. -B..,Zhang, H. -H..,Schultheis, M..,...&Lu, H..(2014).A three-dimensional extinction map of the Galactic anticentre from multiband photometry.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,443(2),1192-1210. |
| MLA | Chen, B. -Q.,et al."A three-dimensional extinction map of the Galactic anticentre from multiband photometry".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 443.2(2014):1192-1210. |
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