A DETECTION OF BARYON ACOUSTIC OSCILLATIONS FROM THE DISTRIBUTION OF GALAXY CLUSTERS
文献类型：期刊论文
| 作者 | Hong, Tao ; Han, J. L.; Wen, Z. L.; Hong,Tao
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| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2016-08-01 |
| 卷号 | 826期号:2 |
| 关键词 | cosmology: observations galaxies: clusters: general large-scale structure of universe |
| 英文摘要 | We calculate the correlation function of 79,091 galaxy clusters in the redshift region of z <= 0.5, selected from the WH15 cluster catalog. With a weight of cluster mass, a significant baryon acoustic oscillation (BAO) peak is detected on the correlation function with a significance of 3.7 sigma. By fitting the correlation function with a.CDM model curve, we find D-v(z = 0.331)r(d)(fid)/r(d) = 1261.5 +/- 48 Mpc, which is consistent with the Planck 2015 cosmology. We find that the correlation function of the higher mass sub-sample shows a higher amplitude at small scales of r < 80 h(-1) Mpc, which is consistent with our previous result. The two-dimensional correlation function of this large sample of galaxy clusters shows a faint BAO ring with a significance of 1.8 sigma, from which we find that the distance scale parameters on directions across and along the line of sight are alpha(sigma) = 1.02 +/- 0.06 and alpha(pi) = 0.94 +/- 0.10, respectively. |
| 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 ; LUMINOUS RED GALAXIES ; DARK ENERGY SURVEY ; REDSHIFT SURVEY ; SDSS-III ; POWER-SPECTRUM ; FINAL DATA ; SCALE ; SAMPLE ; UNIVERSE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000381977900054 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6881]  |
| 专题 | 国家天文台_射电天文研究部 |
| 作者单位 | Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hong, Tao,Han, J. L.,Wen, Z. L.,et al. A DETECTION OF BARYON ACOUSTIC OSCILLATIONS FROM THE DISTRIBUTION OF GALAXY CLUSTERS[J]. ASTROPHYSICAL JOURNAL,2016,826(2). |
| APA | Hong, Tao,Han, J. L.,Wen, Z. L.,&Hong,Tao.(2016).A DETECTION OF BARYON ACOUSTIC OSCILLATIONS FROM THE DISTRIBUTION OF GALAXY CLUSTERS.ASTROPHYSICAL JOURNAL,826(2). |
| MLA | Hong, Tao,et al."A DETECTION OF BARYON ACOUSTIC OSCILLATIONS FROM THE DISTRIBUTION OF GALAXY CLUSTERS".ASTROPHYSICAL JOURNAL 826.2(2016). |
入库方式： OAI收割
来源：国家天文台
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