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	Testing statistical isotropy in cosmic microwave background polarization maps
	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
	2018-04-01
卷号	475期号:4页码:4357-4366
关键词	Methods: data analysis Method: statistical Cosmic background radiation
ISSN号	0035-8711
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
内容类型	期刊论文
URI标识	http://www.corc.org.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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