<p style=”margin-bottom:13px”><span style=”font-size:11pt”><span style=”line-height:115%”><span style=”font-family:Calibri,sans-serif”><b><span style=”font-size:12.0pt”><span style=”line-height:115%”><span style=”font-family:"Cambria","serif"”>What is a radio burst, spotted by NASA for the first time in Milky Way?</span></span></span></b></span></span></span></p>
<p style=”margin-bottom:13px”><span style=”font-size:11pt”><span style=”line-height:115%”><span style=”font-family:Calibri,sans-serif”><b><span style=”font-size:12.0pt”><span style=”line-height:115%”><span style=”font-family:"Cambria","serif"”>Why in news?</span></span></span></b></span></span></span></p>
<p style=”margin-bottom:13px”><span style=”font-size:11pt”><span style=”line-height:115%”><span style=”font-family:Calibri,sans-serif”><span style=”font-size:12.0pt”><span style=”line-height:115%”><span style=”font-family:"Cambria","serif"”>NASA has observed in this April, a mix of X-ray and radio signals never observed before in the Milky Way. Significantly, the flare-up it observed included the first fast radio burst (FRB) seen within the galaxy.</span></span></span></span></span></span></p>
<p style=”margin-bottom:13px”><span style=”font-size:11pt”><span style=”line-height:115%”><span style=”font-family:Calibri,sans-serif”><b><span style=”font-size:12.0pt”><span style=”line-height:115%”><span style=”font-family:"Cambria","serif"”>What is fast Radio Burst?</span></span></span></b></span></span></span></p>
<p style=”margin-bottom:13px”><span style=”font-size:11pt”><span style=”line-height:115%”><span style=”font-family:Calibri,sans-serif”><span style=”font-size:12.0pt”><span style=”line-height:115%”><span style=”font-family:"Cambria","serif"”>FRBs are bright bursts of radio waves (radio waves can be produced by astronomical objects with changing magnetic fields) whose durations lie in the millisecond-scale, because of which it is difficult to detect them and determine their position in the sky. </span></span></span></span></span></span></p>
<p style=”margin-bottom:13px”><span style=”font-size:11pt”><span style=”line-height:115%”><span style=”font-family:Calibri,sans-serif”><span style=”font-size:12.0pt”><span style=”line-height:115%”><span style=”font-family:"Cambria","serif"”>he first FRB was discovered in 2007. </span></span></span></span></span></span><span><img alt=”” src=”https://i.filecdn.in/476edenias/freesnippingtool-com_capture_20201106144356-1604654632767.png” style=”float:right” /></span></p>
<p style=”margin-bottom:13px”><span style=”font-size:11pt”><span style=”line-height:115%”><span style=”font-family:Calibri,sans-serif”><b><span style=”font-size:12.0pt”><span style=”line-height:115%”><span style=”font-family:"Cambria","serif"”>What is the origin of the FRB detected in April?</span></span></span></b></span></span></span></p>
<p style=”margin-bottom:13px”><span style=”font-size:11pt”><span style=”line-height:115%”><span style=”font-family:Calibri,sans-serif”><span style=”font-size:12.0pt”><span style=”line-height:115%”><span style=”font-family:"Cambria","serif"”>The source of the FRB detected in April in the Milky Way is a very powerful magnetic neutron star, referred to as a magnetar, called SGR 1935+2154 or SGR 1935, which is located in the constellation Vulpecula and is estimated to be between 14,000-41,000 light-years away.</span></span></span></span></span></span></p>
<p style=”margin-bottom:13px”><span style=”font-size:11pt”><span style=”line-height:115%”><span style=”font-family:Calibri,sans-serif”><span style=”font-size:12.0pt”><span style=”line-height:115%”><span style=”font-family:"Cambria","serif"”>The FRB was part of one of <b>the magnetar’s </b> most prolific flare-ups, with the X-ray bursts lasting less than a second. The radio burst, on the other hand, lasted for a thousandth of a second and was thousands of times brighter than any other radio emissions from magnetars seen in the Milky Way previously. It is possible that the FRB-associated burst was exceptional because it likely occurred at or close to the magnetar’s magnetic pole.</span></span></span></span></span></span></p>
<p style=”margin-bottom:13px”><span><img alt=”” src=”https://i.filecdn.in/476edenias/freesnippingtool-com_capture_20201106144422-1604654790704.png” style=”float:right” /></span></p>
<p style=”margin-bottom:13px”><span style=”font-size:11pt”><span style=”line-height:115%”><span style=”font-family:Calibri,sans-serif”><b><span style=”font-size:12.0pt”><span style=”line-height:115%”><span style=”font-family:"Cambria","serif"”>What is a magnetar?</span></span></span></b></span></span></span></p>
<p style=”margin-bottom:13px”><span style=”font-size:11pt”><span style=”line-height:115%”><span style=”font-family:Calibri,sans-serif”><span style=”font-size:12.0pt”><span style=”line-height:115%”><span style=”font-family:"Cambria","serif"”>As per NASA, a magnetar is a neutron star, “the crushed, city-size remains of a star many times more massive than our Sun.” The magnetic field of such a star is very powerful, which can be over 10 trillion times stronger than a refrigerator magnet and up to a thousand times stronger than a typical neutron star’s.</span></span></span></span></span></span></p>
<p style=”margin-bottom:13px”><span style=”font-size:11pt”><span style=”line-height:115%”><span style=”font-family:Calibri,sans-serif”><span style=”font-size:12.0pt”><span style=”line-height:115%”><span style=”font-family:"Cambria","serif"”>Magnetars are a subclass of these neutrons and occasionally release flares with more energy in a fraction of a second than the Sun is capable of emitting in tens of thousands of years</span></span></span></span></span></span></p>
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