More than 1,600 transient radio signals generated by a single source can be detected in deep space in just 47 days

Detectan en el espacio profundo más de 1.600 señales fugaces de radio generadas por una sola fuente en apenas 47 días

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15 October 2021 11:55 GMT

Since their discovery in 2007, fast radio explosions (FRBs) have fascinated and fascinated the scientific community.

An international team of scientists claims to have made the discovery in just 47 days 1,652 fast radio explosions (FRB) comes from a hitherto unidentified source in deep space Research Published this week in the journal Nature.

Since the discovery in 2007 by astronomer Duncan Lorimer and his student David Narkevich, the FRB The scientific community is fascinated and intrigued.These are powerful radio pulses of unknown origin A few milliseconds Average. Sources commonly found in galaxies millions or millions of light-years away produce rapid radio explosions capable of emitting as much energy. Hundreds of millions of stars.

The authors of a recent study obtained data from the FRB121102 resource performance analysis throughout 2019, and FRB121102 holds the record for the number of FRBs detected within 47 days. The FRB’s most active source has been demonstrated and documented so far Earth astronomers.

At present, the nature of this Nigo source source is unknown, as scientists have not found any indication of periodicity in the FRBs released, meaning it is not a rotating compact object. Magnet, A very magnetic dead star.

In fact, another team of astronomers Reported In September, a similar event occurred in our own galaxy, the source of radio signals that did not follow a fixed time pattern, so they could not be generated by a magnet (which shows the periodicity of its action).

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This indicates that FRBs are not just created by magneters or other types of stars, but by origin. And other cosmic objects.

“Failure to find any periodicity or semi-periodicity poses challenges to models that include a single rotating compact object,” the researchers explain. “High explosion rates indicate that FRBs must be generated with high radiative efficiency to avoid emission mechanisms with high energy requirements or artificially activated conditions.

The duration, frequency, and polarization of different FRBs indicate that the sources they emit are in the environment. Very different Mutually, so while current studies provide new data and insights, more observations and research are still needed to unravel the mystery of FRBs.

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