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Thread: Mysterious radio signals from deep space detected

  1. #1
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    Default Mysterious radio signals from deep space detected

    From BBC - January 9, 2019

    Astronomers have revealed details of mysterious signals emanating from a distant galaxy, picked up by a telescope in Canada.

    The precise nature and origin of the blasts of radio waves is unknown.
    Among the 13 fast radio bursts, known as FRBs, was a very unusual repeating signal, coming from the same source about 1.5 billion light years away.
    Such an event has only been reported once before, by a different telescope.
    "Knowing that there is another suggests that there could be more out there," said Ingrid Stairs, an astrophysicist from the University of British Columbia (UBC).
    "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."
    The CHIME observatory, located in British Columbia's Okanagan Valley, consists of four 100-metre-long, semi-cylindrical antennas, which scan the entire northern sky each day.
    The telescope only got up and running last year, detecting 13 of the radio bursts almost immediately, including the repeater.


    The research has now been published in the journal Nature.

    "We have discovered a second repeater and its properties are very similar to the first repeater," said Shriharsh Tendulkar of McGill University, Canada.
    "This tells us more about the properties of repeaters as a population."
    FRBs are short, bright flashes of radio waves, which appear to be coming from almost halfway across the Universe.

    So far, scientists have detected about 60 single fast radio bursts and two that repeat. They believe there could be as many as a thousand FRBs in the sky every day.
    There are a number of theories about what could be causing them.
    They include a neutron star with a very strong magnetic field that is spinning very rapidly, two neutron stars merging together, and, among a minority of observers, some form of alien spaceship.
    A pictures is worth a thousand words but a challenging meme stumps the ignorant.

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    Default Re: Mysterious radio signals from deep space detected

    Please! Don't answer them!


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    Default Re: Mysterious radio signals from deep space detected

    The signals are probably from a Coke bottle whose neck is caught in the cord of a window blind, bouncing in the breeze and randomly tapping an open telegraph key. I wish I could remember the name of the movie in which I saw that.

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    Default Re: Mysterious radio signals from deep space detected

    Quote Originally Posted by old pathologist View Post
    The signals are probably from a Coke bottle whose neck is caught in the cord of a window blind, bouncing in the breeze and randomly tapping an open telegraph key. I wish I could remember the name of the movie in which I saw that.
    On The Beach

    ETA: http://forum.woodenboat.com/showthre...he-Second-Time
    Last edited by sharpiefan; 01-11-2019 at 12:26 PM.

    Hope the voyage is a long one.
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    with what pleasure, what joy,
    you come into harbors seen for the first time...

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    Default Re: Mysterious radio signals from deep space detected

    Quote Originally Posted by ron ll View Post
    Please! Don't answer them!
    Quite. They have had 1.5 billion light years of development since those 'signals' were sent.
    Enjoy a good rum on the rocks at sunset.

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    Default Re: Mysterious radio signals from deep space detected

    Quote Originally Posted by Rum_Pirate View Post
    Quite. They have had 1.5 billion light years of development since those 'signals' were sent.
    Errrrm..., light-years is distance, not time.

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    Default Re: Mysterious radio signals from deep space detected

    "Wherever there is a channel for water, there is a road for the canoe. " - Thoreau

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    Default Re: Mysterious radio signals from deep space detected

    Quote Originally Posted by ron ll View Post
    Please! Don't answer them!

    Bolger designed SPACESHIPS, too?!

    Peace,
    Robert

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    Default Re: Mysterious radio signals from deep space detected

    Quote Originally Posted by ron ll View Post
    Errrrm..., light-years is distance, not time.
    The light-year is a unit of length used to express astronomical distances and measures about 9.46 trillion kilometres or 5.88 trillion miles.

    So they came from 5.88 trilllion miles x 1.5 billion light years miles away.

    Apparently radio waves travel very quickly through space as a kind of electromagnetic radiation, and thus they move at the speed of light.

    So wouldn't have taken 1.5 billion years to get here?


    Please help me understand.


    Enjoy a good rum on the rocks at sunset.

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    Default Re: Mysterious radio signals from deep space detected

    Quote Originally Posted by Rum_Pirate View Post
    So wouldn't it have taken 1.5 billion years to get here?

    Seven (7).
    bccphalarope(dot)com

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    Default Re: Mysterious radio signals from deep space detected

    Quote Originally Posted by twodot View Post
    Seven (7).
    Can you show your calculation of that?
    Enjoy a good rum on the rocks at sunset.

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    Default Re: Mysterious radio signals from deep space detected

    Quote Originally Posted by Rum_Pirate View Post
    The light-year is a unit of length used to express astronomical distances and measures about 9.46 trillion kilometres or 5.88 trillion miles.

    So they came from 5.88 trilllion miles x 1.5 billion light years miles away.

    Apparently radio waves travel very quickly through space as a kind of electromagnetic radiation, and thus they move at the speed of light.

    So wouldn't have taken 1.5 billion years to get here?


    Please help me understand.


    I think he's responding this -

    "They have had 1.5 billion light years of development since those 'signals' were sent." The "light years" should be "years".

    The FRBs originate 1.5 billion light-years away. Light travels 1 light-year per year (duh!). Doing the math, they originate 1.5 billion years ago.

    Hope the voyage is a long one.
    May there be many a summer morning when,
    with what pleasure, what joy,
    you come into harbors seen for the first time...

    Ithaka, by Cavafy
    (Keeley - Sherrard translation)

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    Default Re: Mysterious radio signals from deep space detected

    Quote Originally Posted by Rum_Pirate View Post
    Can you show your calculation of that?
    Three (3) plus 4 (four) equals seven.
    bccphalarope(dot)com

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    Default Re: Mysterious radio signals from deep space detected

    Quote Originally Posted by sharpiefan View Post
    I think he's responding this -

    "They have had 1.5 billion light years of development since those 'signals' were sent." The "light years" should be "years".

    The FRBs originate 1.5 billion light-years away. Light travels 1 light-year per year (duh!). Doing the math, they originate 1.5 billion years ago.
    Thanks. Appreciated.
    Enjoy a good rum on the rocks at sunset.

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    Default Re: Mysterious radio signals from deep space detected

    Created or sent?

    Therorectally couldn’t the FFB signals be comming from a repeater?
    A pictures is worth a thousand words but a challenging meme stumps the ignorant.

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