Sign in to download hi-res image Fig. 4. Using the previous results, the prediction for the type-Ia supernova gamma-ray background; the shaded band has the same meaning as the previous figures. (Figure taken from Strigari et al. (2005).) Clayton and Silk (1969) proposed long ago tha...
releasing enough energy (1–2×1044 J)[60] to unbind the star in a supernova.[61] An outwardly expanding shock wave is generated, with matter reaching velocities on the order of 5,000–20,000 km/s, or roughly 3% of the speed of light. There...
to lose meaning. The Hubble telescope was able to capture the image above, a supernova observed in 1994, whose home galaxy is 55 million light-years from Earth. But astronomers have set their sights on still more distant celestial horizons. That's where theJames Webb Space Telescopecomes in...
on my creative projects at the expense of commitments with friends and family. For myself and all who struggle with that same temptation, I want Dr. Supernova’s Evil Plan to serve as a reminder to take the time to nurture and cherish the relationships that give our lives meaning. ...
early universe 1. Introduction For nearly a decade it has been assumed that the universe is presently undergoing a period of acceleration driven by an exotic form of dark energy. In a new model proposed by one of us (Wiltshire 2005a), it has been claimed that it is possible to fit ty...
Pursuing the technological RNA pathway seems to be self-destructive and devoid of any greater meaning not already found in organisms, namely eating and reproducing. The human mind must make a map of reality in order to create tools that fit substrate precisely. There are places on that map ...
In the absence of a credible goodness-of-fit, the estimated parameters of the theory, and their estimated uncertainties, have no meaning at all. Moreover, the important goal of testing the theory with data remains unfulfilled. The futility and weakness of the newly adopted non-standard ...
“There are hundreds of quadrillions of heavy stars in the universe that have undergone supernova explosions, meaning that in the history of the universe, there have been many, many explosions. The expansion of space has caused a red shift in the wavelengths of the neutrinos emitted by past ...
We immediately notice that the matter energy density Ω m , 0 , determined using the CCC model, is the same as for the benchmark model within the 95% confidence level, whereas the dark energy density Ω Λ , 0 is vastly different, meaning that the latter trades with curvature energy ...