Mysterious repeating radio bursts baffle physicists

10 January, 2019, 09:56 | Author: Darnell Taylor
  • Scientists Find 13 Mysterious Deep Space Flashes Including 2nd Known'Repeater

The discovery is a sign that there could be even more repeating FRBs out there waiting to be found - and maybe even an answer to the mystery of their source.

Good and McGill University astrophysicist Victoria Kaspi discussed the CHIME/FRB Collaboration's findings during a briefing at the American Astronomical Society's winter meeting in Seattle. "We would like to know what kinds of objects these are and how they are related to other explosions and objects that we know of (gamma-ray bursts, supernovae, neutron stars etc)", Tendulkar said.

Work on the Canadian Hydrogen Intensity Mapping Experiment (CHIME), which Tendulkar and his colleagues used for their research, was not quite complete when this initial baker's dozen was detected last July and August.

We may soon find out thanks to some mysterious signals that were recently picked up by a telescope in British Columbia.

The first one, deemed FRB 121102, was discovered in 2015 by the Arecibo radio telescope, and it was revealed in 2018 that the bursts release an enormous amount of energy. A repeating FRB, however, provides more opportunities for scientists to learn about these radio bursts and where they come from.

Another interesting twist has to do with the radio frequencies of the newly detected bursts. But for only the second time, they have now found one that repeats itself, making it more likely that we might find out where they come from.

One hypothesis is that powerful astrophysical phenomena are causing them.

IRS Will Pay Tax Refunds in Shutdown After All
He added that the Trump administration is working to make the shutdown "as painless as possible, consistent with the law". The IRS said it will recall a "significant portion" of its roughly 52,000 furloughed employees to work on tax returns.


Teacher fired after video shows her dragging autistic boy in KY
The teacher is scheduled to appear in court Wednesday. "The Greenup County School District prioritizes the safety of our students. The boy's mother, Angel Nelson, told CNN on Monday that her son was removed from a classroom after he had an outburst.


Star Trek 4 movie reportedly shelved, but more shows on the way
The plans for a fourth Star Trek movie in the rebooted series have been shelved by Paramount Pictures, according to reports. Paramount Pictures has reportedly put the long-awaited sequel Star Trek 4 on the shelf, with director S.J.


Researchers at the University of British Columbia in Canada said they've discovered the second so-called "repeating fast radio burst" (FRB) ever recorded, according to a news release published January 9. Seeing a signal at all indicates something big, like a black hole collision, could be the cause.

"This tells us more about the properties of repeaters as a population". Those include: a neutron star with a very strong magnetic field that is spinning very rapidly and two neutron stars merging together.

The FRBs discovered were omitting unusually low frequencies, with previously detected FRBs having frequencies around 1,400 megahertz and the new discoveries bellow 800 MHz.

Constructed in British Columbia, CHIME is composed of 4, 100-meter long half-pipe cylinders of metal mesh which reconstruct images of the sky by processing the radio signals recorded by more than a thousand antennas. FRBs are typically in the 1,400 MHz range, and the previous lowest radio frequency was at 700 MHz.

"[We now know] the sources can produce low-frequency radio waves and those low-frequency waves can escape their environment, and are not too scattered to be detected by the time they reach the Earth", Tom Landecker, a CHIME team member from the National Research Council of Canada, said in a statement. "But it has to be in some special place tog I've us all the scattering that we see".

To which he added: "CHIME is the most prolific FRB hunter in the world and we are looking forward to sharing new results in the upcoming months".

Recommended:



Popular

US, China seek end to trade war through talks | Money Talks
Bloomberg reported that Trump is eager to strike a deal to boost markets, citing people familiar with White House deliberations. The truce came after the two sides imposed import duties on more than $300 billion of each other's goods.

R. Kelly under Investigation following Lifetime's Documentary
Kelly is reportedly being investigated in multiple jurisdictions following the release of a Lifetime docuseries, " Surviving R. She felt compelled to make a public statement to aid victims after her office was inundated with calls to take action.

Parsons 'extremely disappointed' Grizzlies didn't give him chance
Memphis offered Parsons an opportunity with its G League affiliate but wouldn't assure him a spot on the active roster. The 30-year-old player has $38 million still left on his contract with Memphis through 2020.

Green Book, Bohemian Rhapsody bag honours
The Golden Globes kicked off the Hollywood awards season leading to the Oscars , where nominations will be announced on Jan 22. He may have been left at home the night of the Golden Globes, but it was hardly a case of "out of sight, out of mind".

Two ships with 49 stranded migrants arrive in Malta after standoff
Alter said eight countries have now indicated their willingness to take in the migrants but talks are ongoing with more. The deal also decides the future of another 249 rescued migrants already in the island nation.

Kim Kardashian & Other Celebs Celebrate Cyntoia Brown Being Granted Clemency
While in prison, Brown completed her GED and took college classes. "Transformation should be accompanied by hope", he continued. Under Tennessee law, anyone convicted of first degree murder must serve a minimum of 51 years in prison, regardless of age.

Is it too late to get a flu shot?
Regular hand washing, getting the flu shot, and sneezing into your arm rather than your hand are important preventive measures. Widespread flu activity is being reported by 24 states . the C-D-C rates states from green to red, red being high incidence.

Trump threatens to withhold FEMA money from California to help with wildfires
In this file photo taken on November 10, 2018 Flames from the Camp fire burn near a home atop a ridge near Big Bend, California. Trump has threatened in the past to halt federal support for California but has yet to follow through.

Kim Jong Un departs Beijing after meetings with Xi Jinping
He arrived in Beijing in his famed armored train early Tuesday morning and held meetings with Chinese President Xi Jinping . Kim could not be seen but the limousine he uses was observed zipping east down a main thoroughfare in Beijing on Wednesday.

Markets buoyed by optimism over US-China trade talks
Asked about the timing of the operation during trade talks, Lu said resolving issues would help both countries and the world. Word of progress briefly drove U.S. stocks higher in early morning trading but major indices soon pared much of those gains.