Why the universe has to be so big?

Discussion in 'Astronomy, Exobiology, & Cosmology' started by Saint, Oct 29, 2017.

  1. river

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    Do not pdf me .

    Not up for discussion . The end .
     
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  3. paddoboy Valued Senior Member

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    https://arxiv.org/pdf/1709.02189.pdf

    Fast radio bursts: recent discoveries and future prospects

    Fast radio bursts (FRBs) are quickly becoming a subject of intense interest in time-domain astronomy. The progentiors of FRBs remain unknown but a wide variety of models exist from cataclysmic to repeating scenarios. Advances in FRB detection using current and next-generation radio telescopes will enable the growth of the population in the next few years. Real-time discovery of FRBs is now possible with 6 sources detected in real-time within the past 2 years at the Parkes telescope. Here we discuss the developing strategies for maximising real-time science with FRBs including polarisation capture and multi-wavelength follow-up, with particular focus on real-time detections with the Parkes telescope as a test bed for fast radio burst science. We also discuss how our response to these events can pave the way for the next generation of FRB searches with wide-field interferometers.

    excerpt:

    The progenitors of FRBs remain a mystery; however, a substantial number of theories have been proposed in the last five years to explain the varied observational properties of the population. In the most general sense, origin theories for FRBs can be grouped into two categories: cataclysmic and repeating progenitor models. Cataclysmic progenitor theories include collapsing neutron stars (‘blitzars’; Falcke & Rezzolla, 2014), binary neutron star mergers (Totani , 2013), and mergers of charged black holes (Zhang , 2016), while non-cataclysmic models include energetic neutron stars in supernova remnants (Connor et al., 2016), giant pulses from young neutron stars (Cordes et al., 2016), and hyperflares from magnetars (Popov & Postnov, 2010)
     
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  5. river

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    I see .

    They have know idea .
     
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  7. paddoboy Valued Senior Member

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    :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
    Obviously we have a dishonest troll that should be ignored at this time.
     
  8. DaveC426913 Valued Senior Member

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    Providing references and defending one's position with studies and facts is kind of the opposite of troll.

    Speaking opinions without backing them up is much closer to troll.

    You might want to back off that one.
     
  9. paddoboy Valued Senior Member

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    deleted
     
  10. paddoboy Valued Senior Member

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    stuff up
     
    Last edited: Nov 26, 2017
  11. paddoboy Valued Senior Member

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    What links river did give, simply support the fact that we have discovered FRBs. And there are many ideas as to what they maybe, although obviously no certainty exists with any particular idea. And invalidating the BB is not one of them at this stage of the game.
    I agree totally...some examples.....
    and....
    river's modus operandi is by this time well known I suggest.
     
  12. DaveC426913 Valued Senior Member

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    Wait. What the heck?

    Pad, post 224 - did you quote yourself?

    My mistake. I thought that it was River that posted 224 and was calling you a troll (for you know, providing actual references & stuff).

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  13. paddoboy Valued Senior Member

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    I think his modus operandi and trolling one line answers and explanations is getting to all of us!

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    The quote of mine at 224 is what river ignored at least twice!
     
  14. Michael 345 Valued Senior Member

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    Flowing water strikes again

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