Slashdot Mirror


Astronomers Pinpoint Location of Mysterious Cosmic Radio Bursts (bbc.com)

New submitter Netdoctor writes: Fast Radio Bursts (FRB) are massively powerful short-lived radio bursts from far-away sources, and so far a number of theories exist on what generates them. Recently several were detected in the same general location, which adds to the mystery, as any of these pulses would be powerful enough to destroy a source. Since this group of FRBs were detected with single radio telescope dishes, the exact location was difficult to pinpoint. BBC reports here with results from the Very Large Array in New Mexico being trained on the source. From the report: "Outlining their work at a major conference, astronomers say they have now traced the source of one of these bursts to a different galaxy. Dr Chatterjee, from Cornell University, New York, and colleagues used a multi-antenna radio telescope called the Very Large Array (VLA), which had sufficient resolution to precisely determine the location of a flash known as FRB 121102. In 83 hours of observing time over six months in 2016, the VLA detected nine bursts from FRB 121102. In addition to detecting the bright bursts from FRB 121102, the team's observations also revealed an ongoing, persistent source of weaker radio emission in the same region. The flashes and the persistent source must be within 100 light-years of each other, and scientists think they are likely to be either the same object or physically associated with one another. He said some features of the radio source resembled those associated with large black holes. But he said these were typically found only in large galaxies."

50 comments

  1. ... powerful enough to destroy the source by Anonymous Coward · · Score: 4, Funny

    I didn't know there were Samsung Galaxy phones in outer space...

    1. Re:... powerful enough to destroy the source by Anonymous Coward · · Score: 0

      Why? Is it because in 2037 the Android time system will go back to 0... And EXPLODE??????????

    2. Re:... powerful enough to destroy the source by hcs_$reboot · · Score: 1

      2038.

      --
      Slashdot, fix the reply notifications... You won't get away with it...
    3. Re:... powerful enough to destroy the source by Anonymous Coward · · Score: 0

      2038.

      You're a victim of fake news.

    4. Re:... powerful enough to destroy the source by Anonymous Coward · · Score: 0

      Just like people will still be using the tired old "you're holding it wrong" or the almost as tired "courage" tropes.

      It's the Internet. Get over it.

    5. Re:... powerful enough to destroy the source by Anonymous Coward · · Score: 0

      That joke bombed. Make a Note of it.

    6. Re:... powerful enough to destroy the source by The-Ixian · · Score: 1

      I, for one, welcome our new trope overlords...

      --
      My eyes reflect the stars and a smile lights up my face.
    7. Re:... powerful enough to destroy the source by darkain · · Score: 1

      1) In soviet russia, trope slashdots you!
      2) ...?
      3) PROFIT!!

  2. Personal experience by Buchenskjoll · · Score: 5, Funny

    To me it felt like a disturbance in the force, as if millions of voices suddenly cried out in terror and were suddenly silenced.

    --
    -- Make America hate again!
    1. Re:Personal experience by Anonymous Coward · · Score: 1

      Is it because of Jar-Jar?

    2. Re:Personal experience by Anonymous Coward · · Score: 0

      Times 18 bursts, of which 9 from the FRB 121102 galaxy in 6 months.
      That version of the death star has been busy, as it seems. But you can't say "recently", as it must have happened 3 billion years ago.

    3. Re: Personal experience by Anonymous Coward · · Score: 0

      Nobody will feel the same about this planet, a cesspool of sand n1ggers and obnoxious indo-chimps.

    4. Re:Personal experience by MachineShedFred · · Score: 4, Funny

      So, a long long time ago in a galaxy far far away, then?

      --
      Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
    5. Re:Personal experience by kaizendojo · · Score: 1

      "No, just a little headache." (Obligatory "Hardware Wars" reference.)

    6. Re:Personal experience by FatdogHaiku · · Score: 1

      it was just KFRB, blasting out the top 100 Intergalactic Hits... in a few micro seconds.
      They also do Intergalactic traffic reports, but those aren't very timely unless you're close enough for the broadcast to fry you...

      --
      You have the right to remain sentient. If you give up the right to remain sentient, you will be elected to public office
  3. Re:It's Hitler by hcs_$reboot · · Score: 1

    The signal was emitted 3 billions years ago...

    --
    Slashdot, fix the reply notifications... You won't get away with it...
  4. Approximately 2Ghz by MrKaos · · Score: 1, Funny

    Scientists now searching for equally mysterious WPA or WEP key.

    --
    My ism, it's full of beliefs.
    1. Re:Approximately 2Ghz by Anonymous Coward · · Score: 1

      They should try looking on the bottom of the router, or a sticky note under the keyboard.

    2. Re:Approximately 2Ghz by MrKaos · · Score: 1

      tough crowd.

      --
      My ism, it's full of beliefs.
  5. Galactic battle by Anonymous Coward · · Score: 0

    "these pulses would be powerful enough to destroy a source." or maybe a destination... First intergalactic war... just 3 billion years ago

  6. Are the bursts periodic? by Anonymous Coward · · Score: 3, Informative

    Are the bursts periodic? If the hypothesis of a neutron star orbiting a black hole is correct, it suggests there should be not only a repeating series of bursts, but they should also be periodic. It's widely reported that the bursts are repeating, but I have yet to see any discussion of them being periodic. That may provide some clues as to the mechanism responsible.

    Regarding the alien speculation from some (non-science) publications, it's easy to assume that aliens are responsible for unexplained radio signals. When repeating radio signals with a period of 1.33 seconds were discovered in 1967, it was assumed by many to be signals from aliens. However, it is now accepted that jets of electromagnetic radiation from a rotating neutron star are responsible for such signals, and the phenomenon is now known as a pulsar. A lot of caution is warranted before advancing such a hypothesis.

    1. Re:Are the bursts periodic? by Anonymous Coward · · Score: 0

      This particular source is repeating. It is the only one that has been observed to repeat.

    2. Re:Are the bursts periodic? by Anonymous Coward · · Score: 0

      Microwave oven door hinge malfunctioning, door opens slightly when platter reaches certain position.
      Because they think it's coming from 3 billion light-years away, the burst strength is mistaken to be larger by a corresponding factor.

    3. Re:Are the bursts periodic? by Anonymous Coward · · Score: 0

      A lot of caution is warranted before advancing such a hypothesis

      Especially since nobody can explain WHY aliens would advertise their presence to strangers by sending radio signals into deep space, and given that their technology must be orders of magnitude more advanced than ours (to generate that level of energy), why they would choose such a crude and limited form of communication. It's kind of like the Greeks explaining thunder by citing Zeus and his temper tantrums.

    4. Re:Are the bursts periodic? by snookiex · · Score: 1

      why they would choose such a crude and limited form of communication

      Actually that's pretty easy to explain. It depends on your audience. If you are targetting primitive civilizations like ours, you're not going to use an advanced type of communication, but some sort of alien Morse code (or something even simpler).

      --
      Open Source Network Inventory for the masses! Kuwaiba
    5. Re:Are the bursts periodic? by Anonymous Coward · · Score: 0

      Why would they want to target such a primitive audience like ours in the first place?
      Besides, the prime directive is clear enough about not doing that.

    6. Re:Are the bursts periodic? by Gavagai80 · · Score: 1

      If you're targeting primitive civilizations, you do it locally, because there's no way a civilization in another galaxy like us can hope to respond. Also, this "transmitter" would probably fry any planet within a hundred light years it was aimed at.

      --
      This space intentionally left blank
    7. Re:Are the bursts periodic? by snookiex · · Score: 1

      Yes, you are right, however what I meant is that there's a valid reason for an advanced civilization to use a "crude" form of communication.

      --
      Open Source Network Inventory for the masses! Kuwaiba
    8. Re:Are the bursts periodic? by fisted · · Score: 1

      Maybe because they have tried targetting more advanced audiences, but no one seemed to be home?

    9. Re: Are the bursts periodic? by hackwrench · · Score: 1

      Because they want to "dance" with them. Any novelty is instantly in demand once you've reached the point where everything that ever was is available on demand.

  7. Aliens ! by Anonymous Coward · · Score: 0

    Starships entering and exiting hyperspace

  8. Aliens by powro79 · · Score: 1

    Obiously a war between alien races. Let's get involved!

  9. Re:It's Hitler by Anonymous Coward · · Score: 0, Offtopic

    The Russians hacked the time signature.

  10. Pin Pointed! by Grand+Facade · · Score: 2

    To within 100 light years!

    Science!

    --
    Rick B.
    1. Re:Pin Pointed! by Applehu+Akbar · · Score: 1

      Pinpointed for sufficiently large pins.

    2. Re:Pin Pointed! by Anonymous Coward · · Score: 0

      Well, it's not like the source is the collective sigh of a planet full of buxom, lonely women who are in need of men anyway.

    3. Re:Pin Pointed! by Anonymous Coward · · Score: 0

      I have a very large (hardon collider). Want to see?

  11. Free Pizza? Free beer? by mveloso · · Score: 1

    It's obviously an advertisement for Universal Pizza trumpeting their new intergalactic pizza delivery service. That's one of the few signals powerful enough to cut through the galactic noise.

    The only other thing it might be is a "free beer while supplies last" beacon, which would also be powerful enough to attract attention of all sentient beings.

  12. At last the message is finally decoded! by Anonymous Coward · · Score: 0

    "All your Trumps are belong to us".

    1. Re:At last the message is finally decoded! by Tablizer · · Score: 1

      They can have em!

      The bursts are probably T's intergalactic tweets:

      "Vader is a loser. Real men don't need helmets and don't breath through vacuum cleaners. My hair is my helmet, and it's very real, by the way. Very real."

      "I'm gonna build my own black hole and make the Klingons pay for it. Those Klingons don't send us their best people, too many criminals. And they smell."

      "The EM Drive is a Chinese conspiracy to fleece us so we pay for fake Galactic Warming fixes. It's a job killer for us."

      "Dark matter is also fake, by the way. Smart people tell me galaxies are supposed to rotate biggly on the outside; it's what they do. They negotiated a nice deal with gravity to swing wide. Gravity is open to deals if you know how."

      "R2D2's kind took our jobs! He's trash-can with wheels. Put garbage in him, he shouldn't be working. Do you let your trash-can do your taxes, or your toilet mow the lawn? Weeeak."

  13. Wibbily Wobbly Timey Wimey by hackwrench · · Score: 1

    That is all.

  14. Amazing from 4,000 BC by Billly+Gates · · Score: 1

    That light from over 6,000 years ago hit earth yet the objects are said to be 100 million light years apart?! Impossible