A large-scale cosmic microwave background anisotropy measurement at millimeter and submillimeter wavelengths

Journal Article · Tue May 01 04:00:00 EDT 1990 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/185724· OSTI ID:6643076

Page, L A; Cheng, E S; Meyer, S S ^[1]

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1. MIT, Cambridge, MA (USA)

A balloon-borne experiment to measure the anisotropy of the cosmic microwave background radiation at angular scales of 4 deg or greater is reported. The instrument simultaneously measures in four spectral bands centered on 5.6, 8.7, 15.8, and 22.5/cm. Three results are presented: (1) the 95-percent confidence limit for monochromatic anisotropies is 0.0001 or less on angular scales of 10 deg; (2) the Galactic plane dust emission at l = 42 deg is consistent with a nu-squared emissivity law at frequencies above 15/cm, with excess emission below 15/cm; and (3) atmospheric ozone at an altitude of 35 km may form clumps as large as Delta emissivity/emissivity = 0.002. 21 refs.

• OSTI ID: 6643076
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 355; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640106* -- Astrophysics & Cosmology-- Cosmology
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AIRSHIPS
ANISOTROPY
BACKGROUND RADIATION
BALLOONS
CALIBRATION
COSMIC DUST
COSMIC RADIATION
DUSTS
ELECTROMAGNETIC RADIATION
IONIZING RADIATIONS
MEASURING METHODS
MICROWAVE RADIATION
RADIATIONS
RELICT RADIATION