Mapping the Cosmic Microwave Background Anisotropy:The First Flight of the QMAP Experiment | Zendy

Michelle Devlin | Zendy; A. de OliveiraCosta | Zendy; Tom Herbig | Zendy; Amber Miller | Zendy; C. B. Netterfield | Zendy; Lyman A. Page | Zendy; Max Tegmark | Zendy

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Mapping the Cosmic Microwave Background Anisotropy:The First Flight of the QMAP Experiment

Author(s) -

Michelle Devlin,

A. de OliveiraCosta,

Tom Herbig,

Amber Miller,

C. B. Netterfield,

Lyman A. Page,

Max Tegmark

Publication year - 1998

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 - 10.1086/311769

Subject(s) - cosmic microwave background , anisotropy , physics , astrophysics , multipole expansion , spectral index , microwave , spectral density , cosmic ray , astronomy , galactic plane , spectral line , optics , galaxy , quantum mechanics , statistics , mathematics

We report on the first flight of the balloon-borne QMAP experiment. Theexperiment is designed to make a map of the cosmic microwave backgroundanisotropy on angular scales from 0.7 to several degrees. Using the map wedetermine the angular power spectrum of the anisotropy in multipole bands froml~40 to l~140. The results are consistent with the Saskatoon (SK) measurements.The frequency spectral index (measured at low l) is consistent with that of CMBand inconsistent with either Galactic synchrotron or free-free emission. Theinstrument, measurement, analysis of the angular power spectrum, and possiblesystematic errors are discussed.

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