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wolram
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We all know that the temperature of the back ground radiation is 3k, but how have we calculated the intiial temperature of the big bang.
The closest thing to an "initial temperature" that makes sense in this context would have been the temperature right after reheating, which was caused by the end of inflation. Because reheating would have been caused by the inflaton decaying, the temperature at that time would have been determined by the final energy density of the inflaton. That energy density we don't currently know.wolram said:We all know that the temperature of the back ground radiation is 3k, but how have we calculated the intiial temperature of the big bang.
Chronos said:The temperature of the BB is thought to be around the Planck temperature [really, really hot].
The estimated temperature of the Big Bang is about 10^32 Kelvin (K) or 10^32 degrees Celsius (°C). This extreme temperature is over a billion times hotter than the core of our sun.
Scientists use various methods to measure the temperature of the Big Bang. One way is by studying the cosmic microwave background (CMB), which is the leftover radiation from the early universe. By analyzing the distribution and intensity of this radiation, scientists can determine the temperature of the Big Bang.
Yes, the temperature of the Big Bang has changed over time. As the universe expanded and cooled, the temperature gradually decreased. It started at an infinitely hot and dense state and has cooled to the current temperature of about 2.73 K.
The temperature of the Big Bang is a crucial factor in understanding the birth of the universe. It represents the moment when all matter and energy were compressed into a single point, also known as the singularity. As the universe expanded, this intense heat energy began to spread out, creating the universe as we know it.
The temperature of the Big Bang is considered to be the hottest temperature that has ever existed. However, it is not the maximum possible temperature. The laws of physics as we know them break down at extremely high temperatures, so it is unknown what the maximum temperature could be. Some theories suggest that the maximum temperature could be up to 10^32 K.