ESA / NASA
The universe is decaying much faster than it was thought, and will disappear in 1 years of years, according to calculations by three Dutch scientists about the so -called Hawking radiation. But fortunately, this is a long, long time.
Often considered a place of eternal cosmic stability, the universe may, on the contrary, be slow but inescapable for decomposition – and within a period that could reach much earlier than previously believed.
In a new study, a team of physicists at Radboud University in the Netherlands has presented convincing evidence that even the most resistant stellar remnants, such as neutron stars and white dwarfs, are not immune to evaporation by production of gravitational pairs.
According to the study, recently sent for publication in the Journal of Cosmology and Astroparticle Physicsos last star traces take about 10⁷⁸ years to decay – much less than 10¹¹⁰⁰ previously postulated.
That is, the ultimate end of the universe will happen in just one years – Still, a lot, a lot, a long time.
The discovery may redefine our understanding of the future distant from the cosmos and the stability of the matter itself, says the.
“The definitive end of the universe will arrive much earlier than expected“ Heino FalckeProfessor of Radioastronomy and Physics of Astroparticles at Radboud University and the main author of the study. “But fortunately, this will take a long time“.
So far, the predominant theory has maintained that Only black holes They would eventually evaporate, for unimaginable periods, through the call, a phenomenon in which quantum fluctuations near the event horizon create particles that slowly drain the mass From the black hole.
Compared, the neutron stars and white dwarfs were considered effectively eternal, assuming that his dense matter was stable in cosmological time scales. However, the research team at Radboud University challenges this vision.
The authors of the study calculated as the gravitational curvature – not the presence of an event horizon – can create virtual particle pairs what do not annihilate and radiateslowly draining the mass of objects even without horizon.
In simple terms, the Extreme spacetime curvature around ultradens It is sufficient to separate pairs from virtual particlesconverting them to real particles that escape the cosmos.
This effect, analogous to the well -known Schwinger effect in strong electric fields, it could mean a slow but inevitable conviction even for seemingly more permanent objects in the universe.
Team calculations reveal that the time scale of evaporation depends on the density of an objectfollowing a simple but deep relationship: how much denser is an object, faster decomposese.
Neutron stars, with densities greater than 10¹⁴ grams per cubic centimeter, have a LIFE HOPE IN THE ORDER OF 10⁶⁸ YEARS. This is approximately comparable to small stelar black holes, which were thought to survive the stars of neutrons for vast periods.
Compared, the Supermassive black holeslike the center of the M87 galaxy, would last a few impressive 10⁹⁶ years before they completely evaporate.
The team calculates that the FINAL STEEL REMAININGnamely the most dense white dwarfs, would take about 10⁷⁸ years to evaporate Completely – a dramatically shorter value than the previously postulated upper limit of 10¹¹⁰⁰ years suggested by previous models.
This adjustment marks a significant refinement in our understanding of cosmic longevity, indicating that even the most lasting matter of the universe is intended to disappear – and earlier than we were counting.
Since they were with Hand in the doughsays, the researchers also decided to calculate how long it would take a human being or the moon evaporates it through radiation similar to Hawking: are 10⁹⁰ years.
Of course, they underlit the researchers subtly, there are many other forms of disappear humans “That probably will not be here to watch the end of the universe.”
