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'Blazar' flare-up stuns physicists

blazars black holes supermassive black holes gamma ray astronomy markarian 421

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#1    Waspie_Dwarf

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Posted 16 April 2013 - 12:57 PM

Blazar Markarian 421's flare-up is cosmic coincidence


www.bbc.co.uk said:

The skies are currently being flooded with the brightest display of gamma rays - the Universe's highest-energy light - ever seen by astronomers.

The culprit is a staggering flare-up of Markarian 421, a "blazar" that hosts a supermassive black hole.

By sheer coincidence, a programme to study it had just begun, so dozens of the world's telescopes - from visible to radio to gamma-ray - were watching.

And it came just in time for a meeting of many of the world's astrophysicists


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#2    Ever Learning

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Posted 16 April 2013 - 01:22 PM

i know its very far away but what were they saying about it pointing at earth? why would that matter?
interesting post

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#3    Waspie_Dwarf

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Posted 16 April 2013 - 01:28 PM

View PostArmchair Educated, on 16 April 2013 - 01:22 PM, said:

i know its very far away but what were they saying about it pointing at earth? why would that matter?
interesting post
Because if it wasn't pointing at Earth we wouldn't be able to see it.

Think of it as being like a torch beam, if the torch isn't pointed at you you can't see the light it emits.

"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001

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#4    Ever Learning

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Posted 16 April 2013 - 01:31 PM

View PostWaspie_Dwarf, on 16 April 2013 - 01:28 PM, said:

Because if it wasn't pointing at Earth we wouldn't be able to see it.

Think of it as being like a torch beam, if the torch isn't pointed at you you can't see the light it emits.
Lesson learnt, very interesting stuff

www.paranormaltales.boards.net




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