A High-Resolution Map of the Cosmic Microwave Background around the North Celestial Pole | Zendy

Max Tegmark | Zendy; A. de OliveiraCosta | Zendy; Michelle Devlin | Zendy; C. B. Netterfield | Zendy; Lyman A. Page | Zendy; Edward J. Wollack | Zendy

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A High-Resolution Map of the Cosmic Microwave Background around the North Celestial Pole

Author(s) -

Max Tegmark,

A. de OliveiraCosta,

Michelle Devlin,

C. B. Netterfield,

Lyman A. Page,

Edward J. Wollack

Publication year - 1997

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/310440

Subject(s) - cosmic microwave background , angular resolution (graph drawing) , physics , astronomy , cosmic cancer database , astrophysics , microwave , noise (video) , resolution (logic) , geodesy , residual , range (aeronautics) , geology , optics , anisotropy , artificial intelligence , mathematics , combinatorics , quantum mechanics , computer science , image (mathematics) , materials science , algorithm , composite material

We present a Wiener filtered map of the Cosmic Microwave Background (CMB)fluctuations in a disk with 15 degree diameter, centered at the North CelestialPole. The map is based on the 1993-1995 data from the Saskatoon (SK)experiment, with an angular resolution around 1 degree in the frequency range27.6-44.1 GHz. The signal-to-noise ratio in the map is of order two, and someindividual hot and cold spots are significant at the 5 sigma level. The spatialfeatures are found to be consistent from year to year, reenforcing theconclusion that the SK results are not dominated by residual atmosphericcontamination or other non-celestial signals.

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