Polarimetry at 1. 3 mm using MILLIPOL - methods and preliminary results for Orion

Journal Article · Mon Feb 01 04:00:00 EST 1988 · Astron. J.; (United States)

DOI:https://doi.org/10.1086/114650· OSTI ID:5236655

Barvainis, R; Clemens, D P; Leach, R

This paper describes a polarimeter for use at wavelengths near 1 mm, designed to be self-contained and portable. Only minor modifications should be required to adapt this instrument for use on any of several millimeter and submillimeter telescopes. The polarimeter system and data-taking techniques are described, and a preliminary measurement is reported of the polarized dust emission from the Orion KL region at 1.3 mm using the NRAO 12 m telescope. The results are similar to previous polarization measurements of Orion at far-infrared and submillimeter wavelengths. The magnetic field direction implied by the polarization position angle is parallel to that found in the surrounding Orion region using optical and near- to midinfrared polarimetric techniques. 17 references.

• Research Organization: National Radio Astronomy Observatory, Charlottesville, VA (USA); Steward Observatory, Tucson, AZ (USA)
• OSTI ID: 5236655
• Journal Information: Astron. J.; (United States), Journal Name: Astron. J.; (United States) Vol. 95; ISSN ANJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANTENNAS
COSMIC DUST
COSMIC RADIO SOURCES
DATA ACQUISITION
DATA PROCESSING
DUSTS
ELECTRICAL EQUIPMENT
ELECTRONIC EQUIPMENT
EQUIPMENT
H2 REGIONS
INTERSTELLAR MAGNETIC FIELDS
MAGNETIC FIELDS
POLARIMETRY
PROCESSING
RADIO EQUIPMENT
RADIO TELESCOPES
TELESCOPES
USES