探测Schwassmann-Wachmann 3-B彗星等离子体尾部turbulence尺度大小的掩星观测
Occultation observation to probe the turbulence scale size in the plasma tail of comet Schwassmann-Wachmann 3-B
摘要：
本文报道了通过Schwassmann-Wachmann 3-B彗星等离子体尾对致密射电源B 0019 -000的掩星观测。2006年5月26日，当彗星的等离子体尾部在这个源的前面时，用326.5 MHz的Ooty射电望远镜进行了观测。发现与控制源相比，目标源的闪烁显著增加。强度起伏功率谱在高空间尺度下表现为陡峭化，在低空间尺度下表现为过剩功率。这一观测结果可以归因于彗星等离子体尾部的湍流。两态等离子体湍流可以解释掩星观测期间功率谱的时间演化。
英文摘要：
We present the occultation observation of compact radio source B0019-000 through the plasma tail of comet Schwassmann-Wachmann 3-B. The observation was made with the Ooty Radio Telescope at 326.5 MHz on 2006 May 26, when the plasma tail of the comet was in front of this source. The scintillation was found to be increased significantly for the target source compared to that of a control source. The intensity fluctuation power spectra show both steepening at high spatial scales and excess power at low spatial scales. This observation can be attributed to the turbulence in the comet plasma tail. A two-regime plasma turbulence can explain the time-evolution of the power spectrum during the occultation observation.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
