If there are 1000 GRBs per day, where is all that energy

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Discussion Overview

The discussion centers around the phenomenon of Gamma-Ray Bursts (GRBs) and the implications of their energy output on the universe. Participants explore questions regarding the fate of this energy, its impact on the universe's energy balance, and the nature of energy absorption in the cosmos.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants question where the energy from 1000 GRBs per day is going and whether the universe is becoming more energetic or if it can absorb this energy without apparent change.
  • Others propose that the expansion of the universe might be linked to an increasing amount of mass/energy being converted into energy form, suggesting a potential shift in energy scales.
  • A quote from an astrophysicist highlights the mystery behind the acceleration of massive objects to near-light speeds, indicating a lack of understanding of the underlying causes of GRBs.
  • One participant notes that Earth, as an average piece of the universe, can absorb the energy from GRBs that reach it without issue.
  • Concerns are raised about the sheer scale of energy output from GRBs, with comparisons made to the total energy output of the Milky Way, leading to confusion about the implications of such energy release.
  • Another participant asserts that the energy from GRBs is not new energy being added to the universe but rather a release of existing energy, framing it as a zero-sum game.
  • Some participants discuss the immediate effects of GRBs, noting that while they can cause havoc nearby, the energy dissipates with distance from the event.

Areas of Agreement / Disagreement

Participants express various viewpoints regarding the implications of GRB energy output, with no consensus reached on whether this energy contributes to an increase in the universe's overall energy or how it is absorbed. The discussion remains unresolved with multiple competing views presented.

Contextual Notes

Participants express uncertainty regarding the mechanisms of energy absorption and the implications of GRB energy output, with references to the scale of energy involved and its effects on the universe remaining unresolved.

wolram
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if there are 1000 GRBs per day, where is all that energy
going, is our universe getting more energetic or is it
so big that it can adsorb this energy with no aparant change?
 
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An enormous question. Is the expansion of the universe the result of an increasing amount of mass/energy being converted into energy form? E=m, so are the overall scales tipping in favor of the E form?
-----

I found this quote about the cause of the Gamma Radiation Bursts to be mind boggling:

"What we know is that something has to accelerate a huge mass - close to the mass of the sun - to close to the speed of light in a very short period of time. We just don't know why that's happening."

-Ed Fenimore
Los Alamos Astrophysicist
 


Originally posted by wolram
if there are 1000 GRBs per day, where is all that energy
going, is our universe getting more energetic or is it
so big that it can adsorb this energy with no aparant change?

Well we here on Earth are a pretty average piece of the universe, and _we_ have no trouble absorbing the part of the GRB that comes our way.
 
i have searched on the net for an explanation as to what
is happening with no result, i have found quotes like,
one GRB is equal to the energy output of the milkyway.
so that's a "thousand times the total milkyway output",
"everyday", that is a bit hard to understand.
 
Originally posted by wolram
i have searched on the net for an explanation as to what
is happening with no result, i have found quotes like,
one GRB is equal to the energy output of the milkyway.
so that's a "thousand times the total milkyway output",
"everyday", that is a bit hard to understand.
What's hard to understand? If 1 is the same as the output of the Milky Way, then 1000 is 1000 times the Milky Way.
 


Originally posted by wolram
if there are 1000 GRBs per day, where is all that energy
going, is our universe getting more energetic or is it
so big that it can adsorb this energy with no aparant change?

This is not new energy being added to the universe. It's a build up and release of existing energy. Zero sum game.
 
so this one thousand times the energy of the milky way
released in a day has no effect, its just reabsorbed
into the universe?
 
Oh, the burst certainly causes havoc with anything nearby. But the energy is eventually dissipated with distance from the event.
 

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