In the cosmos, nothing lasts forever, and every celestial construct fashioned from the gases and matter of early big bang is not eternal. Look across the universe, and there are massive galaxies, living bodies of plasma giving birth to planets and stars. Our own solar system resides at the edge of the milky way galaxy that is thriving for now.
Galaxies not seen by the naked eye are burning bright then die cold and dead. Leaving a black cold expanse, in the middle of the universe. Astrophysicists already know that galaxies far bigger than the milky way are in the process of dying and cooling down. It leaves their cores formed after the big bang, getting cold and no more stars formed.
This data is compiled by Masayuki Tanaka and his colleagues at the National Observatory of Japan and published already. One impact is how this information will be bones of contention, to established models of the universe that came prior. Total revisions for everything to take into account this new evidence about galaxies.
Updates on models to describe everything about galaxies
All the evidence gathered from all tools to probe the universe, have collided with what used to be wild guesses. These conjectures are driving change in the models used to describe how the universe works. The imminent deployment of the new James Webb Space Telescope will add more snooping eyes in the universe.
Gathering information and knowing how a galaxy slowly marches to oblivion, as a dead and cold as cinders. Will give a clue, how to understand our own milky way as it evolves. How long does the hot core of the milky way galaxy (MWG) last, and how will the universe be revised in a model taking this into account. As one scientist "Francesco Valentino", made the observation from the evidence gained.
Dead galaxies what are they?
When galaxies are alive it has a hot core, that births stars compared to a cooled core that cannot support star nurseries. A galaxy in the midst of a quench produces fewer stars with less light than normal like hovering over death slowly. If it is dark and cold, it has died and left its stellar corpse.
What caused the great dying of galaxies?
One of the clues that lead to a galaxy's death is the presence of a leviathan black hole that is sucking the gas to form stars and keep the core how. One of these is M87 as an example of how galaxies die slowly.
The most distant dying galaxy is really old
Most of the oldest galaxies are 1.5 billion years old and very large but found near the center of the universe. The suspected galactic center is where these mammoth galaxies are born.
Extreme evidence versus normal evidence
Space and earth-bound telescope are able to spot unusual or dramatic events in the cosmos. Scientists want more ordinary and normal events using very precise tools, that may be coming soon.
The James Webb Telescope (JWST) may give better clues
If astrophysicists were surgeons, the JWST will be their scalpel to see better into the void of space. In 2021, this will add more precise observations to verify more evidence out in the universe.
Read: The core of massive dying galaxies already formed 1.5 billion years after the Big Bang
