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Date: 2-2-2017
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Date: 6-2-2017
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Date: 24-12-2015
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Radio properties of Sgr A*
Most of the direct information about Sgr A* is available at radio wavelengths. This includes the total intensity spectrum, the variability, the polarization, and the
Figure 1.1. The Green Bank Interferometer (GBI; left) which was instrumental in detecting Sgr A* and the Very Large Array (VLA; right). Both interferometers are operated by the National Radio Astronomy Observatory (NRAO) in the United States and were extensively used to monitor the variability of Sgr A*.
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دراسة يابانية لتقليل مخاطر أمراض المواليد منخفضي الوزن
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اكتشاف أكبر مرجان في العالم قبالة سواحل جزر سليمان
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المجمع العلمي ينظّم ندوة حوارية حول مفهوم العولمة الرقمية في بابل
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