CONSTRAINTS ON THE POLARIZATION OF THE ANOMALOUS MICROWAVE EMISSION IN THE PERSEUS MOLECULAR COMPLEX FROM SEVEN-YEAR WMAP DATA
CONSTRAINTS ON THE POLARIZATION OF THE ANOMALOUS MICROWAVE EMISSION IN THE PERSEUS MOLECULAR COMPLEX FROM SEVEN-YEAR WMAP DATA
复制标题
七年 WMAP 数据对英仙座分子复合体中异常微波发射偏振的约束
DOI：
10.1088/0004-637x/729/1/25
复制
发表时间：
2010
期刊：
影响因子：
--
通讯作者：
R. Génova
中科院分区：
文献类型：
--
作者：
C. López;C. López;J. Rubiño;J. Rubiño;R. Rebolo;R. Rebolo;R. Génova;R. Génova
我们利用威尔金森微波各向异性探测器（WMAP）的7年观测数据，更新了英仙座分子复合物G159.6-18.5区域的强度信号测量结果，并对异常微波发射占主导地位的频率范围内的极化水平进行了限制。在23 GHz、33 GHz和41 GHz，我们分别获得了分数线性极化的上限1.0%、1.8%和2.7%（置信水平为95%）。这些测量排除了大量基于磁偶极子发射的模型，这些模型由一个简单的域组成，负责异常发射。当将我们的结果与COSMOSOMAS实验在11 GHz下获得的测量结果相结合时，我们发现电偶极子和共振弛豫理论在该频率范围内的预测是一致的。
We have used the seven-year Wilkinson Microwave Anisotropy Probe (WMAP) data in order to update the measurements of the intensity signal in the G159.6-18.5 region within the Perseus molecular complex and to set constraints on the polarization level of the anomalous microwave emission in the frequency range where this emission is dominant. At 23, 33, and 41 GHz, we obtain upper limits on the fractional linear polarization of 1.0%, 1.8%, and 2.7%, respectively (with a 95% confidence level). These measurements rule out a significant number of models based on magnetic dipole emission of grains that consist of a simple domain as responsible for the anomalous emission. When combining our results with the measurement obtained with the COSMOSOMAS experiment at 11 GHz, we find consistency with the predictions of the electric dipole and resonance relaxation theory at this frequency range.
旋转尘埃辐射的改进模型
DOI：
10.1111/j.1365-2966.2009.14599.x
发表时间：
2009
影响因子：
4.8
作者：
Ali-Haïmoud Y
通讯作者：
Ali-Haïmoud Y