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Do the aliens try to contact us? Scientists detect stronger rapid radio explosions since 2007



  The mystery of Radio Signal continues as scientists receive denser FRBs near Milky Way

A decade after the discovery of Fast Radio Burst (FRB) in 2007, researchers have detected three strongest FRBs since 2007. scientists used Parkes Radio from CSIRO Telescope in Western Australia to track the FRB. The first, FRB 180301, was detected on March 1. FRB 180309 was detected 8 days later, and FRB 180311 only two days ago. FRB 180309 is particularly interesting as it has a signal-to-noise ratio of 411, making it more than 4.5 times brighter than the next best detection.

"The outbreak of March 9 was by far the brightest we've seen," Professor Maura McLaughlin, of the University of West Virginia in Morgantown, told New Scientist.

"While astronomers do not know so much about FRBs, only dozens of bursts have been detected, we can infer some intriguing details about them." Danny Price, Breakthrough Listen Project Scientist for Parkes, said in a post about the discovery of FRB 180301.

"First of all, they exhibit a revealing sweep in the frequency that suggests they are incredibly far away: billions of light-years FRB travel billions of years to reach us, and they only last a few milliseconds, which suggests that the emission mechanism is ephemeral, so that we can clearly detect them after such a long trip, they also have to be incredibly bright. "

To remember, FRB, for the first time, was discovered in 2007. In the same year, scientists found some strange, strong and intense rays that originate in space. Although the waves lasted only a fraction of a second but they emitted extremely powerful and concentrated waves of what our sun extended in 10,000 years, which without a doubt surprised the world astronomical community. In 2007, eighteen FRBs were discovered in total, and scientists believe that one of these bursts takes place in the sky once every 10 seconds. While scientists previously believed that the rays came from our Milky Way, the new findings have corroborated the radio bursts from the small galaxy, located billions of light years from Earth.

Scientists previously believed that sporadic bursts of radio waves originated from the Milky Way, or from the closest galactic neighbors on earth. But three new cosmological studies have confirmed the new modest derivation of this unexplained explosion. According to one of the three studies published in the journal Nature last year, the rays are radiating from a dwarf galaxy that is 1% of the Earth's mass. The galaxy is 3 billion light years away from Earth's location and is much smaller than the mass of our planet.

Some conspiracy theorists claim that the intelligent extraterrestrial life form could be sending us these mysterious radio bursts. However, an astronomy professor, James Cordes, of Cornell University said that these telescopes used remote sensors to obtain data present three billion light-years away from Earth. An in-depth study of these new data found will allow astronomers to provide a fairly specific explanation about the neighboring environment of the source of these radio bursts and more specifically

In radio astronomy, a rapid radio burst (FRB) is a Phenomenon High energy astrophysicist of unknown origin that manifests as a transient radio pulse that lasts only a few milliseconds. The first FRB was discovered by Duncan Lorimer and his student David Narkevic in 2007 when they were looking for data from archival pulsing surveys, and is therefore commonly known as Lorimer Burst. Since then, many FRBs have been found, including a repetitive FRB.

When the FRBs are polarized, they indicate that they are emitted from a source contained within an extremely powerful magnetic field. [5] The origin of the FRB has not yet been determined; Proposals for its origin range from a rapidly spinning neutron star and a black hole to extraterrestrial intelligence.

The first FRB, the Lorimer Burst FRB 010724, was discovered in 2007 when Duncan Lorimer assigned his student David Narkevic to review archival data in 2001 for the Parkes radio dish in Australia. [13] The analysis of the survey data found a dispersed explosion of 30 jansky that occurred on July 24, 2001, [11] less than 5 milliseconds in length, located at 3 ° of the Small Magellanic Cloud. The reported burst properties argue against a physical association with the Milky Way galaxy or the Small Magellanic Cloud. The explosion became known as Lorimer Burst. [14] The discoverers argue that current models for the content of free electrons in the universe imply that the explosion is less than 1 gigaparsec away. The fact that no more bursts were observed in 90 hours of additional observations implies that it was a singular event such as a supernova or fusion of relativistic objects. [11] It is suggested that hundreds of similar events could occur every day and, if detected, could serve as cosmological probes.

Due to the isolated nature of the phenomenon observed, the nature of the source remains speculative. As of 2016, there is no generally accepted explanation. It is estimated that the emission region does not exceed a few hundred kilometers (due to causality). If the explosions come from cosmological distances, their sources must be very bright.

A possible explanation would be a collision between very dense objects such as the fusion of black holes or neutron stars. It has been suggested that there is a connection to gamma ray bursts. Some have speculated that these signals may be of artificial origin, which may be signs of extraterrestrial intelligence.

In 2007, just after the publication of electronic printing with the first discovery, it was proposed that rapid radio bursts could be related to hyperflares of magnetars. In 2015, three studies supported the magnetar hypothesis.

The blitzars were proposed in 2013 as an explanation. [51] In 2014 it was suggested that after the collapse of pulsars induced by dark matter, [62] the resulting ejection of the pulsar magnetospheres could be the source of rapid radio bursts. [63] In 2016, the collapse of the Kerr-Newman black hole magnetospheres is proposed to explain the origin of the "residual brightness" of the FRB and the weak transient of gamma rays 0.4 s after GW 150914. has proposed that if rapid radio bursts are created in black hole bursts, FRBs would be the first detection of the effects of quantum gravity.

Repeated bursts of FRB 121102 have initiated multiple hypotheses of origin. [67] A coherent emission phenomenon known as superradiance has been proposed, involving large-scale entangled quantum mechanical states that possibly arise in environments such as active galactic nuclei, to explain these and other observations associated with FRB (for example, high rate of events, profiles of variable intensity).


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