Scientists watch nova explosions every year. They watch dim stars flare and go brighter than the sun and then fade out. The nova explosions are an occurrence in a milky way, but nobody knows how many eruptions occur in the Milky Way every year. It was hard to keep track of, until now.
Now, scientists found a new way to find explosions. Infrared light, which penetrates dust better than visible light does, can show the nova rate or explosion rate better. The research team reported that there are 46 or 4 dozen nova explosions every year in the milky way galaxy. Earlier it was predicted to be 10 to 300 per year. But now scientists have a more solid estimate.
Nova works, unlike supernova. A supernova leads to a star’s death. But a nova is different. Nova occurs arises from a binary star — two stars circling each other. There is a dwarf star that receives gas from its companion. That leads to a massive explosion and makes the dim star shine brilliantly.
The group of scientists studied the sky from Palomar Observatory in California for 17 months. And they observed 12 nova explosions in the sky. But they also included the number of missed outbursts. Other scientists have lauded the team for using infrared wavelengths. Because it is ideal for finding distant explosions obscured by the galaxy’s dust.
The nova rate explosion and supernova rate are different. It is hard for a mere nova explosion to compete with supernova but the team has done an amazing job at finding the nova rate explosions.