A team in the Netherlands have identified a second FRB as coming from within a hyper nebula – a dense and highly magnetised cloud of plasma that is illuminated by a powerful but unknown source! FRBs are short outbursts of radio waves which last only a fraction of a second

A team in the Netherlands has identified a second fast radio burst (FRB) coming from a hypernebula. A hypernebula is a dense, highly magnetized cloud of plasma. 

FRBs are short, intense flashes of radio waves that last less than a second. They originate from distant galaxies and are probably produced from the remnants of dying stars. Some FRBs are one-off events, but others have been observed to repeat. 

A leading theory suggests that FRBs are produced by magnetars, which are highly magnetic neutron stars. These stars could emit a powerful wind of charged particles, forming a nebulous region in their vicinity. 

Other theories about the origin of FRBs include: 

• Compact-object mergers 
• Magnetars arising from normal core collapse supernovae 
• A neutron star

A hypernebula is a dense, highly magnetized cloud of plasma. A team of astronomers in the Netherlands have identified a second Fast Radio Burst (FRB) coming from a hypernebula. This FRB is associated with a persistent radio wave source. 

Hypernebula may also refer to: 

• Hyper Nebula: A 2017 album by Aquatic Hazard with 15 songs and a duration of 35 minutes. The album is available on Apple Music. 
• HyperNebula: A GitHub repository with eight available repositories.

Fast radio bursts (FRBs) are bright, millisecond-long flashes of radio waves that originate from distant points in the universe. The first FRB was discovered in 2007. As of June 2021, 140 more had been discovered.

FRBs are the brightest radio bursts in nature. They release as much energy in a millisecond as the sun does over weeks. However, the strength of the signal reaching Earth is 1,000 times less than from a mobile phone on the Moon. 

Scientists don’t know what causes FRBs, but they have proposed a number of possible causes, including: 

• Highly magnetic neutron stars called magnetars 
• Colliding neutron star binaries 
• Merging white dwarfs 

One of the leading theories is that FRBs are caused by magnetars, a type of slowly rotating neutron star. The theory suggests that their super-strong magnetic energy bursts are behind FRBs. 

The shortest FRBs ever observed last for a millionth of a second. One FRB, identified as FRB 20220610A, lasted only a millisecond, but released the amount of energy our sun emits in three decades.

Other possible causes of FRBs include: 

• Collapsing neutron stars: Also known as “blitzars” 
• Colliding galaxies 

Here’s some more information about magnetars: 

• Magnetars are neutron stars with magnetic fields that are a thousand trillion times stronger than Earth’s. 
• The magnetic field decay of a magnetar powers the emission of high-energy electromagnetic radiation. 
• Magnetars are the most magnetic objects known. 

Here’s some more information about colliding neutron star binaries: 

• Two stars that form a binary and both become neutron stars create a neutron star binary. 
• Over millions of years, the binary system loses energy to gravitational radiation. 
• The two stars spiral towards each other and eventually merge in a collision. 
• The collision releases a burst of high-energy radiation known as a short-duration gamma-ray burst.

FRBs are some of the most powerful and mysterious astronomical phenomena. They are intense, short bursts of energy that come from unknown but extreme activity in space. 

FRBs are powerful at their sources. In a millisecond, some FRBs can blast out as much energy as the sun emits in three Earth days. However, because they come from billions of light-years away, FRBs lose energy as they travel, so when they reach Earth, they are much less powerful

Yes, a team of astronomers from the Netherlands have confirmed that a second Fast Radio Burst (FRB) source is associated with a potential hypernebula. The FRB, called FRB 20190520B, was discovered using the FAST telescope in China. The signal was associated with a dwarf host galaxy with a high specific-star-formation. 

The team used the European VLBI Network (EVN) to make progress in understanding these mysterious cosmic phenomena. The observations were published in the science journal Nature. 

A hypernebula is a model where the FRB is powered by an accretion jet(full article source google)

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