Death-Star cometh
- JohnMurphy
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16 years 9 months ago #65110
by JohnMurphy
Clear Skies,
John Murphy
Irish Astronomical Society
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Death-Star cometh was created by JohnMurphy
The following article gives some info on a Binary system in Saggitarius, one consisting of a Wolf-Rayet. As we know Wolf-Rayets are ticking bombs - the problem? Well, the axis of this system is pointed toward earth so when it goes bang, we may be in the firing line for a gamma ray burst. Keep your shades on
www.space.com/scienceastronomy/080310-mm-grb-us.html
www.space.com/scienceastronomy/080310-mm-grb-us.html
Clear Skies,
John Murphy
Irish Astronomical Society
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- Petermark
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16 years 9 months ago #65111
by Petermark
Mark.
Anybody who says that Earthshine is reflected Sunshine is talking Moonshine.
Replied by Petermark on topic Re: Death-Star cometh
The Gamma rays would be bad enough but we might also all be riddled with Oh-My-God particles:
"The Oh-My-God particle (a play on the nickname "God particle" for the Higgs boson) is the nickname given to a particle observed on the evening of October 15, 1991, over Dugway Proving Grounds, Utah, estimated to have an energy of approximately 3 × 1020 electronvolts, equivalent to about 50 joules — in other words, it was a subatomic particle with macroscopic kinetic energy equal to that of a baseball (140 g) which is moving at about 27 m/s (60 mph). These very high energy cosmic rays are however very rare and most cosmic rays possess an energy between 107 eV and 1010 eV.
It was most likely a proton travelling with velocity almost equal to the speed of light (if it was a proton, its speed would have been approximately (1 − 5 × 10−24) c; after traveling one year the particle would be only 46 nanometres behind a photon that left at the same time[1]) and its observation was a shock to astrophysicists.
Since the first observation, by the University of Utah's Fly's Eye Cosmic Ray Detector, at least fifteen similar events have been recorded, confirming the phenomenon."
"The Oh-My-God particle (a play on the nickname "God particle" for the Higgs boson) is the nickname given to a particle observed on the evening of October 15, 1991, over Dugway Proving Grounds, Utah, estimated to have an energy of approximately 3 × 1020 electronvolts, equivalent to about 50 joules — in other words, it was a subatomic particle with macroscopic kinetic energy equal to that of a baseball (140 g) which is moving at about 27 m/s (60 mph). These very high energy cosmic rays are however very rare and most cosmic rays possess an energy between 107 eV and 1010 eV.
It was most likely a proton travelling with velocity almost equal to the speed of light (if it was a proton, its speed would have been approximately (1 − 5 × 10−24) c; after traveling one year the particle would be only 46 nanometres behind a photon that left at the same time[1]) and its observation was a shock to astrophysicists.
Since the first observation, by the University of Utah's Fly's Eye Cosmic Ray Detector, at least fifteen similar events have been recorded, confirming the phenomenon."
Mark.
Anybody who says that Earthshine is reflected Sunshine is talking Moonshine.
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- dmolloy
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16 years 9 months ago #65117
by dmolloy
Replied by dmolloy on topic Re: Death-Star cometh
Do you mean keep your shades on as in "Men in Black" - or - to just look cool
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- JohnMurphy
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16 years 9 months ago #65118
by JohnMurphy
Clear Skies,
John Murphy
Irish Astronomical Society
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Replied by JohnMurphy on topic Re: Death-Star cometh
Just to look cool of course - you'd need more than just shades if this is pointing directly at us and it goes Kapow (technical term).
BTW heres an interesting detailed account of the OMG particle mentioned above. www.fourmilab.ch/documents/OhMyGodParticle/
BTW heres an interesting detailed account of the OMG particle mentioned above. www.fourmilab.ch/documents/OhMyGodParticle/
Clear Skies,
John Murphy
Irish Astronomical Society
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- dmolloy
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16 years 9 months ago #65120
by dmolloy
Replied by dmolloy on topic Re: Death-Star cometh
John, I read the mentioned article on the Oh, my god particle....and got as far as the bottom of the first paragraph.....before my brain turned into warm sticky porridge.....
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- dave_lillis
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16 years 9 months ago #65123
by dave_lillis
Dave L. on facebook , See my images in flickr
Chairman. Shannonside Astronomy Club (Limerick)
Carrying around my 20" obsession is going to kill me,
but what a way to go.
+ 12"LX200, MK67, Meade2045, 4"refractor
Replied by dave_lillis on topic Re: Death-Star cometh
Looks like the duck and cover strategy wont work for this particle. :shock:
Dave L. on facebook , See my images in flickr
Chairman. Shannonside Astronomy Club (Limerick)
Carrying around my 20" obsession is going to kill me,
but what a way to go.
+ 12"LX200, MK67, Meade2045, 4"refractor
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