The angular power spectra of polarized Galactic synchrotron

被引：38
|
作者：
Tucci, M [1 ]
Carretti, E
Cecchini, S
Fabbri, R
Orsini, M
Pierpaoli, E
机构：
[1] Univ Milano Bicocca, Dipartimento Fis G Occhialini, Milan, Italy
[2] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy
[3] CNR, ITeSRE, I-40129 Bologna, Italy
[4] Univ Florence, Dipartimento Fis, I-50139 Florence, Italy
[5] Univ Bologna, Dipartimento Astron, I-40127 Bologna, Italy
[6] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z4, Canada
来源：
NEW ASTRONOMY | 2000年 / 5卷 / 04期
关键词：
cosmic microwave background; radio continuum : general; methods : statistical;
D O I：
10.1016/S1384-1076(00)00025-7
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We derive the angular power spectra of intensity and polarization of Galactic synchrotron emission in the range 36 less than or equal to l less than or similar to 10(3) from the Parkes survey mapping the southern Galactic plane at 2.4 GHz. The polarization spectra of both electric and magnetic parity up to l similar or equal to 10(3) are approximated very well by power laws with slope coefficients similar or equal to 1.4, quite different from the CMB spectra. We show that no problem should arise from Galactic synchrotron for measurements of CMB polarization in the cosmological window. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：181 / 190
页数：10
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