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Radio signals from Deep space received!

Discussion in 'Announcements & Open Forum' started by DXman, Jan 10, 2019.

  1. DXman

    DXman Well-Known Member

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    Astronomers discover radio signal from galaxy billions of light year away.
    [​IMG]
    The Canadian Hydrogen Intensity Mapping Experiment telescope, otherwise known as CHIME, has discovered a repetitive radio signal some 2.5 billion light-years away from Earth (Mateus A. Fandiño)

    Canadian astronomers have reportedly discovered a repetitive radio signal some 2.5 billion light-years away from Earth — only the second example known to mankind.

    A telescope in British Columbia, otherwise known as Canadian Hydrogen Intensity Mapping Experiment (CHIME), detected 13 pulses — or fast radio bursts (FRBs) — in July and August, according to a Monday report from Nature, a British scientific journal.

    NASA SPACECRAFT SNAPS INCREDIBLE PICTURE OF EARTH

    The findings were announced by Deborah Good, an astronomer at the University of British Columbia in Vancouver, at a meeting of the American Astronomical Society in Washington on Wednesday.

    "Look! We see FRBs," she said of the cosmic flashes, which remain a mystery to astronomers. Before they were spotted over the summer, astronomers reportedly found between 50 and 60 examples of the radio bursts.

    [​IMG]
    CHIME detected 13 FRBs in July and August, according to Nature, a British scientific journal. (Andre Recnik)

    Good said that "if we had 1,000 examples, we would be able to say many more things about what FRBs are like."

    The CHIME telescope found, as phrased by Nature.com, "the second known FRB that repeats, meaning that the radio flashes re-appear at the same point in the sky." The first FRB that repeats was detected in 2012.



    The majority of the FRBs discovered by the telescope showed signs of "scattering," Phys.org reported — which led the CHIME team to believe the radio bursts are "powerful astrophysical objects."



    "That could mean in some sort of dense clump like a supernova remnant," Cherry Ng, an astronomer at the University of Toronto, told the news outlet. "Or near the central black hole in a galaxy. But it has to be in some special place to give us all the scattering that we see."



    Astronomers' studying of FRBs can teach those who study more about where the bursts come from, and whether that region in its galaxy is home to turbulent gas.

    "Until now, there was only one known repeating FRB.," astronomer Ingrid Stairs, also a member of the CHIME team, said. "Knowing that there is another suggests that there could be more out there. And with more repeaters and more sources available for study, we may be able to understand these cosmic puzzles — where they're from and what causes them."
     
    L2 likes this.

  2. Robb

    Robb Yup

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    What?!?
    An alien society a quarter distance away in the known galaxy trained a pulsar to blink out "Eat at Joe's"?
    Sorry . . .
     
    Tallman likes this.
  3. Captain Kilowatt

    Captain Kilowatt Professional Amateur
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    Well that's only about 15 SEPTILLION miles. Perhaps an alien race has their own version of Davemade and he is obviously 2.5 billion years ahead of us in technology.
     
  4. Tallman

    Tallman W9WDX Amateur Radio Member, KW4YJ EXTRA class

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    It's TheRealPorkChop's pager signal telling him call the office.

    Has anybody called SETI with this information? Jodie Foster?
     
    TheRealPorkchop likes this.
  5. Handy Andy

    Handy Andy Do Your Research First, Then Decide...

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    There's more of a writeup here...

    https://phys.org/news/2019-01-canada-chime-telescope-fast-radio.html

    It is similar to what Arecibo detects - many were first thought of as rotating pulsars and similar theories abound even now.

    It was also one of the main driving forces behind SETI project - but it also laid a plausible foundation for the movie "Contact" - on a Novel by Carl Sagan.

    [​IMG]
    "Small moves"​
     
    #5 Handy Andy, Jan 10, 2019
    Last edited: Jan 10, 2019
  6. nomadradio

    nomadradio Analog Retentive

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    Ah yes. One of the few Hollywood flicks almost as good as the novel.

    I still wish they had found a way to incorporate the polarity modulation 'piggybacked' onto the alien signal. Just how a screenwriter would convey that concept to a general audience is another whole problem.

    The book has more than few geeky twists like that.

    73
     
    AudioShockwav and Handy Andy like this.
  7. TheRealPorkchop

    TheRealPorkchop Certified Sith Pimp

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    I got ho’s in different area codes, different solar systems and galaxies. You thought I was just 704, 910, or 919...act like y’all don’t know... I’m the abominable ho’man, solar system dopeman, slingin’ this RF like a new Jack...

    I’m gonna stop now... I’m sorry y’all.
     
  8. Handy Andy

    Handy Andy Do Your Research First, Then Decide...

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    With the opening scene being a "broadbanded sample" of the sheer RF radiation we send into space then as the camera pans further away towards the interstellar medium, not only is the Viewer seeing how small we really are we hear ourselves like an archive of earlier and earlier radio signals propagating away at the speed of light - they (whom they may be) will receive the earliest signals first then thru decades of RF as it evolves onto the century of our RF presence in the Universe - we have had about 100 years or so to prepare ourselves from those that may turn their ships towards us and follow the RF noise we have produced since we started - like a trail of bread crumbs.

    I was impressed at the Blind scientists "Gift" of ability to discern the various methods of what was contained in the signal. Made it more of a sleuthing...

    Just plain fun
     
  9. Slowmover

    Slowmover Well-Known Member

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    Ha! The Three Stooges will cure them of coming our way.
     
    Shadetree Mechanic likes this.
  10. TM86

    TM86 I fix what the snake breaks

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    The aliens were almost here, then they picked up our disco transmissions from the 70's.
     
  11. Tallman

    Tallman W9WDX Amateur Radio Member, KW4YJ EXTRA class

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    I believe that is possible. I can listen to an engine and tell a lot about it's condition. Listening to a radio signal you can tell a lot too. The blind can develop hearing that is almost like echo location.
     
  12. Road Squawker

    Road Squawker Sr. Member

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    "... discovered a repetitive radio signal some 2.5 billion light-years away ..."

    I have a hard time even trying to understand that distance , Heck,... ONE light year is hard enuf to comprehend.

    The light from the Sun only takes about 449 seconds (less than 8 minutes) to get here.
     
    LeapFrog, Tallman and Slowmover like this.
  13. Tallman

    Tallman W9WDX Amateur Radio Member, KW4YJ EXTRA class

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    That's about the same distance to the nearest open SEAR's store.
     
  14. Slowmover

    Slowmover Well-Known Member

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    Just book a seat on Pan Am.

    “Sears, has Everything!”


    F2ABE939-3AAF-482F-ADFF-0B85A63BD765.jpeg
     
    Tallman likes this.
  15. OldTech03

    OldTech03 Well-Known Member

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    Hey if we build a ship that could maintain 50,000 miles per hour we could be there in about 20 thousand years so I'm signing up. And please don't start pointing out all the reasons it would not work. Anyone else?
     

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