THE FAR-INFRARED POLARIZATION OF THE ORION NEBULA

被引：43

作者：

GONATAS, DP

ENGARGIOLA, GA

HILDEBRAND, RH

PLATT, SR

WU, XD

DAVIDSON, JA

NOVAK, G

AITKEN, DK

SMITH, C

机构：

[1] NASA,AMES RES CTR,MOFFETT FIELD,CA 94035

[2] UNIV CHICAGO,ENRICO FERMI INST,DEPT ASTRON & ASTROPHYS,CHICAGO,IL 60637

[3] UNIV MASSACHUSETTS,FIVE COLL RADIO ASTRON OBSERV,AMHERST,MA 01003

[4] UNIV MASSACHUSETTS,DEPT PHYS & ASTRON,AMHERST,MA 01003

[5] AUSTRALIAN DEF FORCE ACAD,CAMPBELL,ACT 2600,AUSTRALIA

来源：

ASTROPHYSICAL JOURNAL | 1990年 / 357卷 / 01期

关键词：

Interstellar: magnetic fields; Nebulae: Orion nebula; Polarization;

D O I：

10.1086/168898

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have measured polarization of the 100 μm thermal emission from 10 points in the Orion nebula. At one of the positions the degree, 5.7%, is the largest far-infrared polarization yet discovered. Except at a position in the barlike structure to the south, the position angles of the polarization vectors are well-ordered, suggesting that a uniform magnetic field threads the cloud. We estimate the magnetic field strength to be between 0.7 and 4 mG. We discuss the relationship of the degrees of polarization to the physical conditions in the cloud.

引用

页码：132 / 137

页数：6

共 34 条

[1] FILAMENTARY STRUCTURE IN THE ORION MOLECULAR CLOUD [J].