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Hi BigBlueStar,
There is more information about GRBs than you seem to be aware of. Some [or all] of them are certainly large supernova explosions. They appear as a GRB if we are looking straight down the rotational axis of the core of the star. There has recently been a nebula observed that seems to be the remnant of a GRB explosion in our galaxy [from a few thousand years ago], but it was not aimed at us thankfully, because it would have fried us. These objects give off about 10^53 ergs over a period of a few seconds. This is about 3x10^19 times as much energy as the Sun gives off in a second. It is also 10^12 times the energy the Sun gives off in a year, which means it is about the same energy that 100 G2 stars give off in their entire lifetimes [10^10 years]. What can release this much energy is the heat of about 10 or 20 times the mass of the sun suddenly falling into a tiny new black hole, and all of the protons [and other particles] slamming into each other at nearly the speed of light on the way down, and the energy of these collisions being funneled out through the intense magnetic poles of the black hole.
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Forming opinions as we speak |
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I'm actually doing some work on some of the BATSE data, and one of the most interesting things I'm noticing is the variety that GRBs come in. Now, I'm not sure if all I'm seeing are GRBs or not, since that link above suggests there are many that aren't. But as I'm analyzing some of the data, many were skipped, but some also seem to be equipment malfunctions.
But based on what I have analyzed, a good many of them don't even have much of an afterglow. There are some spikes for less than half a second at 1-2 kilocounts per second, counting gamma-ray photons. But there are some fairly impressive ones, too. I can't recall all of the details, since I'm not at the computer on which I work on them. But many, also, have afterglows and are quite a lot of fun to work with (relatively speaking). The college I'm working with has just set up a GRB telescope in the Virgin Islands. I don't recall all the details, but the link below should provide you with some information about the 'scope and the universities who are collaborating to put it together: http://astro.uvi.edu/ . Oh, here is a another link to NASA's site on GRBs: http://imagine.gsfc.nasa.gov/docs/science/..._l1/bursts.html Hope this helps. ![]()
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"For that one fraction of a second, you were open to options you had never considered. That is the exploration that awaits you ... not mapping stars and studying nebulae ... but charting the unknown possibilites of existence." - Q "That may be the most important thing to understand about humans. It is the unknown that defines our existence. We are constantly searching ... not just for answers to our questions ... but for new questions. We are explorers .... We explore our lives day by day ... and we explore the galaxy, trying to expand the boundaries of our knowledge. And that is why I am here. Not to conquer you with weapons or with ideas. But to coexist and learn." - Cmdr Ben Sisko |