Testing statistical isotropy in cosmic microwave background polarization maps
文献类型：期刊论文
| 作者 | Rath, Pranati K.1,2; Samal, Pramoda Kumar3; Panda, Srikanta3; Mishra, Debesh D.4; Aluri, Pavan K.5,6 |
| 刊名 | Monthly notices of the royal astronomical society
 |
| 出版日期 | 2018-04-01 |
| 卷号 | 475期号:4页码:4357-4366 |
| ISSN号 | 0035-8711 |
| 关键词 | Methods: data analysis Method: statistical Cosmic background radiation |
| DOI | 10.1093/mnras/sty007 |
| 通讯作者 | Samal, pramoda kumar(pksamal@iopb.res.in) |
| 英文摘要 | We apply our symmetry based power tensor technique to test conformity of planck polarization maps with statistical isotropy. on a wide range of angular scales (l = 40 - 150), our preliminary analysis detects many statistically anisotropic multipoles in foreground cleaned full sky planck polarization maps viz., commander and nilc. we also study the effect of residual foregrounds that may still be present in the galactic plane using both common upb77 polarization mask, as well as the individual component separation method specific polarization masks. however, some of the statistically anisotropic modes still persist, albeit significantly in nilc map. we further probed the data for any coherent alignments across multipoles in several bins from the chosen multipole range. |
| WOS关键词 | ANISOTROPY-PROBE ; COLD SPOT ; COHERENT ORIENTATIONS ; COSMOLOGICAL SCALES ; POWER ASYMMETRY ; SKY ANALYSIS ; WMAP DATA ; CMB ; PROPAGATION ; MULTIPOLES |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | OXFORD UNIV PRESS |
| WOS记录号 | WOS:000428835700005 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2178163 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Samal, Pramoda Kumar |
| 作者单位 | 1.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China 3.Utkal Univ, Dept Phys, Bhubaneswar 751004, Odisha, India 4.Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Hubei, Peoples R China 5.Korea Inst Adv Study, Quantum Universe Ctr, 85 Hoegi Ro, Seoul 02455, South Korea 6.Korea Astron & Space Sci Inst, 776 Daedeokdae Ro, Daejeon 305348, South Korea |
| 推荐引用方式 GB/T 7714 | Rath, Pranati K.,Samal, Pramoda Kumar,Panda, Srikanta,et al. Testing statistical isotropy in cosmic microwave background polarization maps[J]. Monthly notices of the royal astronomical society,2018,475(4):4357-4366. |
| APA | Rath, Pranati K.,Samal, Pramoda Kumar,Panda, Srikanta,Mishra, Debesh D.,&Aluri, Pavan K..(2018).Testing statistical isotropy in cosmic microwave background polarization maps.Monthly notices of the royal astronomical society,475(4),4357-4366. |
| MLA | Rath, Pranati K.,et al."Testing statistical isotropy in cosmic microwave background polarization maps".Monthly notices of the royal astronomical society 475.4(2018):4357-4366. |
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来源：高能物理研究所
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