Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
A millimeter-wave galactic plane survey with the bicep polarimeter
Astrophysical Journal, Volume 741, No. 2, Article 81, Year 2011
Notification
URL copied to clipboard!
Description
In order to study inflationary cosmology and the Milky Way Galaxy's composition and magnetic field structure, Stokes I, Q, and U maps of the Galactic plane covering the Galactic longitude range 260° < ℓ < 340° in three atmospheric transmission windows centered on 100, 150, and 220GHz are presented. The maps sample an optical depth 1 ≲ AV ≲ 30, and are consistent with previous characterizations of the Galactic millimeter-wave frequency spectrum and the large-scale magnetic field structure permeating the interstellar medium. The polarization angles in all three bands are generally perpendicular to those measured by starlight polarimetry as expected and show changes in the structure of the Galactic magnetic field on the scale of 60°. The frequency spectrum of degree-scale Galactic emission is plotted between 23 and 220GHz (including WMAP data) and is fit to a two-component (synchrotron and dust) model showing that the higher frequency BICEP data are necessary to tightly constrain the amplitude and spectral index of Galactic dust. Polarized emission is detected over the entire region within two degrees of the Galactic plane, indicating the large-scale magnetic field is oriented parallel to the plane of the Galaxy. A trend of decreasing polarization fraction with increasing total intensity is observed, ruling out the simplest model of a constant Galactic magnetic field orientation along the line of sight in the Galactic plane. A generally increasing trend of polarization fraction with electromagnetic frequency is found, varying from 0.5%-1.5% at frequencies below 50GHz to 2.5%-3.5% above 90GHz. The effort to extend the capabilities of BICEP by installing 220GHz band hardware is described along with analysis of the new band. © 2011. The American Astronomical Society. All rights reserved.
Authors & Co-Authors
Bierman, Evan M.
United States, La Jolla
University of California, San Diego
Matsumura, Tomotake
United States, Pasadena
California Institute of Technology
Dowell, Charles Darren
United States, Pasadena
California Institute of Technology
United States, Pasadena
Jet Propulsion Laboratory
Keating, Brian G.
United States, La Jolla
University of California, San Diego
Ade, Peter A.R.
United Kingdom, Cardiff
University of Wales
Barkats, Denis A.
Unknown Affiliation
Barron, Darcy R.
United States, La Jolla
University of California, San Diego
Battle, John O.
United States, Pasadena
Jet Propulsion Laboratory
Bock, James J.
United States, Pasadena
California Institute of Technology
United States, Pasadena
Jet Propulsion Laboratory
Chiang, H. Cynthia
United States, Pasadena
California Institute of Technology
United States, Princeton
Princeton University
Culverhouse, Thomas L.
United States, Pasadena
California Institute of Technology
Duband, Lionel
Unknown Affiliation
Hivon, Eric F.
France, Paris
Institut D’astrophysique de Paris
Holzapfel, William Laird
United States, Berkeley
University of California, Berkeley
Hristov, Viktor V.
United States, Pasadena
California Institute of Technology
Kaufman, Jonathan P.
United States, La Jolla
University of California, San Diego
Kovac, John M.
United States, Pasadena
California Institute of Technology
United States, Cambridge
Harvard University
Kuo, Chaolin
United States, Palo Alto
Stanford University
Leitch, Erik M.
United States, Pasadena
Jet Propulsion Laboratory
Mason, Peter V.
United States, Pasadena
California Institute of Technology
Miller, Nathan J.
United States, La Jolla
University of California, San Diego
Nguyên, Hien Trong
United States, Pasadena
Jet Propulsion Laboratory
Pryke, Clement L.
United States, Chicago
The University of Chicago
Richter, Steffen
United States, Pasadena
California Institute of Technology
Rocha, Graça M.
United States, Pasadena
California Institute of Technology
Sheehy, Christopher D.
United States, Chicago
The University of Chicago
Takahashi, Yuki D.
United States, Berkeley
University of California, Berkeley
Yoon, Ki-won
United States, Gaithersburg
National Institute of Standards and Technology
Statistics
Citations: 20
Authors: 28
Affiliations: 11
Identifiers
Doi:
10.1088/0004-637X/741/2/81
ISSN:
0004637X
Research Areas
Environmental
Study Design
Cross Sectional Study
Study Approach
Quantitative