[ad_1]
Astrophysicists Jon Hakkila of the College of Charleston and Robert Nemiroff of the Michigan Technological University have published research indicating that explosions that generate gamma-ray bursts may actually exceed the speed of light in surrounding gas clouds, without violating the Einstein's theory of relativity. Hakkila and Nemiroff propose that such superluminal jets can create the temporal reversibility observed in the gamma light curves. However, these proposed jets do not violate Einstein's relativity as they move faster than light passes through the jet, not faster than light through the void.
Hakkila says that a good way to visualize this superluminal movement is to imagine someone on one side of a pond jumping a stone on the water in your direction. Jumping stones move in the air between jumps faster than the waves they generate move in the water. Hakkila says that you would see the waves created by each jump of the stone approaching, in the reverse order, with the waves of the most recent jump arriving first and those of the initial jump arriving last. According to Hakkila, this supraluminal explanation retains many of the features of the accepted gamma ray jet models. Nemiroff adds, however, that the proposed scenario involves a Cherenkov radiation, a type of light created by a superluminal motion that was not previously considered important for the generation of gamma ray light curves.
"Standard models of gamma-ray bursts have neglected the properties of reversible light curves over time," said Hakkila. "The movement of the superluminal jet takes these properties into account while retaining a large number of standard model features."
make a difference: sponsored opportunity
Source of the story:
Material provided by Michigan Technological University. Note: Content can be changed for style and length.
Journal reference:
- Jon Hakkila, Robert Nemiroff. Burst-time gamma-ray burst light curve characteristics as transitions between subluminal and superluminal movements. The astrophysical journal2019; 883 (1): 70 DOI: 10.3847 / 1538-4357 / ab3bdf
Quote this page:
Michigan Technological University. "The new model offers superluminal jets in gamma-ray bursts." ScienceDaily. ScienceDaily, September 24, 2019.
Michigan Technological University. (September 24, 2019). The new model offers superluminal jets bursting gamma rays. ScienceDaily. Retrieved September 25, 2019 from www.sciencedaily.com/releases/2019/09/190924152835.htm.
Michigan Technological University. "The new model offers superluminal jets in gamma-ray bursts." ScienceDaily. www.sciencedaily.com/releases/2019/09/190924152835.htm (accessed September 25, 2019).
[ad_2]
Source link