Question on multiple rebrightening gamma ray bursts and gravity waves

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In summary, the discussion focuses on the phenomenon of multiple rebrightening in gamma-ray bursts (GRBs) and its potential connection to gravitational waves. Researchers are investigating the mechanisms behind these repeated emissions of gamma rays, which may indicate complex astrophysical processes such as the merger of neutron stars. The interplay between GRBs and gravitational waves is crucial for understanding the nature of these events and their implications for astrophysics, particularly in terms of cosmic explosions and the origins of heavy elements in the universe.
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Sware
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Has anyone correlated gravity waves with multiple rebrightening gamma ray bursts where the bursts are of constant time separation?
Hi Guys. I am interested to find out if anyone at the IPTA or other relevant organizations have correlated gravity waves with multiple rebrightening gamma ray bursts where there is a constant time (t) between 3 or more rebrightening's? If so, did the detection of the gravity wave occur between 0-0.25t seconds before the first brightening peak. Example gamma ray bursts below - I added the red curves.

I am just an interested amateur and have not done any university math's since 1988 so please be kind!!
1698176480145.png


Here's a couple of older (before the IPTA started measuring) GRB's with 3 peaks for example
1698176818126.png
1698176862842.png
1698176920169.png
 
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  • #2
Sware said:
gravity waves

(gravitational waves) :wink:
 
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  • #3
Thanks for the correction berkeman - I shall be more careful with my nomenclature.
It seems though that there are no takers for this very specific question. Guess no one knows at the moment ☹. Would be interesting to know if any gravitational waves do get correlated with MRGRB's and actually lead the first brightening peak (not the rumble before) by <=0.25 x the peak to peak separation.
 
  • #4
Sware said:
I am interested to find out if anyone at the IPTA or other relevant organizations have correlated gravity waves with multiple rebrightening gamma ray bursts where there is a constant time (t) between 3 or more rebrightening's?
The only way to do this would be if there was a LIGO detection corresponding to these events. At least with a quick web search, it does not appear that that was the case.
 
  • #5
Hi Peter
Thanks for the reply. I have looked at LIGO but the frequency range of 1-1000Hz is too high.
(Black hole mergers an example). The waves I am looking at would be in the mHz to nHz range - see pic below
1699388947965.png

(https://physics.stackexchange.com/questions/543797/difference-between-gravitational-wave-detectors)

LISA is the best bet to pick up gravitational waves of the mHz range (if any are associated with MRGRB's).
1699389395407.png


It hasn't been been launched yet - 2037 planned launch! Ill be old then!!
(https://www.esa.int/Science_Exploration/Space_Science/LISA_factsheet)
I'm hoping the IPTA has picked up low frequency waves that look like below. X axis is time. Y axis would be flight time of pulses from pulsars relative to c. Looks totally different to LIGO black hole merger waves. Would be nice to know if this type of gravitational wave exists.
1699390327828.png
 
  • #6
Sware said:
The waves I am looking at would be in the mHz to nHz range
Based on what?
 
  • #7
Sware said:
I'm hoping the IPTA has picked up low frequency waves that look like below.
Based on what?
 
  • #8
Sware said:
nHz range
Nanohertz means a period of decades. Are you sure that's what you mean?
 
  • #9
Hi Guys
Thanks for the responses - been a bit busy.
@PeterDonis - I'm trying to gather evidence for an Idea I have. No good talking about it until I have something to go on - would be a bit foolish as I am just a layman when it comes to Cosmology. It's probably wrong but you never know. Lets see if those waves exist first. Any help with finding if these exist would be gratefully received :)

@Vanadium 50 - If you look at the chart above of the frequency ranges of gravitational waves, the stochastic background is around -nano Hz (you need the IPTA to detect these - https://ipta4gw.org/). The wavelength of MRGRB's would be in the milli Hz range. So there may be waves anywhere in the range of milli to nano Hz. We are talking about space so decades may be plausible?
Thanks for your interest and helpful comments guys.
 
  • #10
Sware said:
I'm trying to gather evidence for an Idea I have.
Personal research is off topic for discussion here.
 

FAQ: Question on multiple rebrightening gamma ray bursts and gravity waves

What are multiple rebrightening gamma-ray bursts (GRBs)?

Multiple rebrightening gamma-ray bursts are a subclass of GRBs characterized by their light curves showing several peaks or rebrightenings after the initial burst. These rebrightenings are believed to be caused by various mechanisms, such as interactions with the surrounding medium or internal processes within the jet.

How are multiple rebrightening GRBs linked to gravity waves?

Multiple rebrightening GRBs and gravity waves can be linked through the events that generate them, such as the merger of neutron stars or black holes. These cataclysmic events can produce both gravitational waves, detected by observatories like LIGO and Virgo, and gamma-ray bursts, observed by space telescopes like Fermi and Swift.

What mechanisms are proposed to explain the rebrightenings in GRBs?

Several mechanisms have been proposed to explain the rebrightenings in GRBs, including refreshed shocks caused by slower-moving ejecta catching up with the initial blast wave, density variations in the surrounding medium, and late-time central engine activity that powers additional energy releases.

How do scientists detect and study multiple rebrightening GRBs?

Scientists detect multiple rebrightening GRBs using space-based gamma-ray observatories, such as the Fermi Gamma-ray Space Telescope and the Neil Gehrels Swift Observatory. They study these events by analyzing the light curves and spectra, using both ground-based and space-based telescopes to gather multi-wavelength data.

What significance do multiple rebrightening GRBs and gravity waves hold for astrophysics?

Multiple rebrightening GRBs and gravity waves are significant because they provide insights into the extreme physics of compact object mergers and the behavior of relativistic jets. They also help scientists understand the conditions of the early universe, the formation of heavy elements, and the fundamental properties of gravity.

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