Testing global isotropy of three-year Wilkinson microwave anisotropy probe (WMAP) data: Temperature analysis

被引：62

作者：

Hajian, Amir

Souradeep, Tarun

机构：

[1] Princeton Univ, Dept Phys, Princeton, NJ 08542 USA

[2] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA

[3] IUCAA, Pune 411007, Maharashtra, India

来源：

PHYSICAL REVIEW D | 2006年 / 74卷 / 12期

关键词：

D O I：

10.1103/PhysRevD.74.123521

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We examine statistical isotropy of large scale anisotropies of the Internal Linear Combination (ILC) map, based on 3 yr WMAP data. Our study reveals no significant deviation from statistical isotropy on large angular scales of the 3 yr ILC map. Comparing statistical isotropy of the 3 yr ILC map and 1 yr ILC map, we find a significant improvement in the 3 yr ILC map which can be due to the gain model, improved ILC map processing, and foreground minimization.

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页数：8

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共 55 条

[1] UNIVERSAL ROTATION - HOW LARGE CAN IT BE [J].

BARROW, JD ;

JUSZKIEWICZ, R ;

SONODA, DH .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1985, 213 (04) :917-943

[2] Non-Gaussianity from inflation: theory and observations [J].

Bartolo, N ;

Komatsu, E ;

Matarrese, S ;

Riotto, A .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2004, 402 (3-4) :103-266

[3] Statistical isotropy of CMB polarization maps [J].

Basak, Soumen ;

Hajian, Amir ;

Souradeep, Tarun .

PHYSICAL REVIEW D, 2006, 74 (02)

[4]

BERNUI A, ASTROPH0601593

[5]

BERNUI A, ASTROPH0511666

[6] Multipole vector anomalies in the first-year WMAP data:: A cut-sky analysis [J].

Bielewicz, P ;

Eriksen, HK ;

Banday, AJ ;

Górski, KM ;

Lilje, PB .

ASTROPHYSICAL JOURNAL, 2005, 635 (02) :750-760

[7] Low-order multipole maps of cosmic microwave background anisotropy derived from WMAP [J].

Bielewicz, P ;

Górski, KM ;

Banday, AJ .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2004, 355 (04) :1283-1302

[8] Measuring the three-point correlation function of the cosmic microwave background [J].

Chen, G ;

Szapudi, I .

ASTROPHYSICAL JOURNAL, 2005, 635 (02) :743-749

[9] ROTATION AND DISTORTION OF UNIVERSE [J].

COLLINS, CB ;

HAWKING, SW .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1973, 162 (04) :307-320

[10] WHY IS UNIVERSE ISOTROPIC [J].

COLLINS, CB ;

HAWKING, SW .

ASTROPHYSICAL JOURNAL, 1973, 180 (02) :317-334

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