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Radio, Radio, where art thou Radio

4 Apr 2018, 19:38 UTC
Radio, Radio, where art thou Radio
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On 17th August 2017, the Advanced LIGO and Advanced Virgo observatories detected gravitational waves from the merger of two neutron stars. Extremely dense and neutron-rich material, equal to 10,000 times the mass of the Earth, was ejected during the merger process, sending intense shocks into the environment. The Karl G. Jansky Very Large Array (VLA), with the JAGWAR program led by Dr. Kunal Mooley, was the first to discover radio waves from these shocks.
In October 2017, when LIGO announced the gravitational wave detection, about 80 research papers were submitted, reporting observations with different telescopes across the globe. Many of the papers reporting radio observations claimed that there is a jet that we are viewing obliquely. A jet consists of material restricted to a very narrow cone and moving very fast – close to the speed of light. In order to get more insight, we continued to observe it with the VLA. These observations were unique because, at that time, optical telescopes like the Hubble Space Telescope and X-ray telescopes like the Chandra Space Observatory could not observe due to proximity to the Sun. We found that the intensity of radio emission was steadily rising, unlike that expected for a ...

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