JWST Fails to Disprove the Big Bang - by BrianKoberlein
This is where big bang skeptics jumped in. They argued that the galaxies are far too developed and far too active to have formed in less than half a billion years, so the big bang must be wrong.But rather than disproving the big bang, these findings show the challenges of simulating the early universe. The key to cosmological simulations is being able to model it in great detail.
This recent study looked at high-resolution simulations called Renaissance, which runs on the Blue Waters Sustained Petascale Computing supercomputer at the University of Illinois. Renaissance simulations can model galaxies in the early universe ranging from as small as 10,000 solar masses to tens of millions of solar masses. It’s one of the most detailed simulations currently available.
The team looked at six galaxies from the JADES and SEERS surveys that had redshifts z > 10 and had well-measured star formation rates. When they compared these galaxies to the range of galaxies produced in the Renaissance simulations, they found there was strong agreement. The JWST observations support the LCDM big bang model.
As the JWST continues to gather data it is bound to find more observational surprises. And as this study shows, more detailed simulations will be needed to test observations. Just as JWST pushes the limits of cosmic observation, astrophysicists will need to push the limits of computer simulations to keep up.
México Últimas Noticias, México Titulares
Similar News:También puedes leer noticias similares a ésta que hemos recopilado de otras fuentes de noticias.
‘Big lunch’ follows big coronation celebrating King CharlesA day after the gilded spectacle of King Charles III's crowning in an ancient religious ceremony, festivities took a more down-to-earth turn with thousands of picnics and street parties held across the U.K. in his honor, no fancy invite required.
Leer más »
JWST images revealed unexpected asteroids in the Fomalhaut star systemNew images of Fomalhaut confirm that an alleged planet is probably just dust while also revealing a new asteroid belt and a “Great Dust Cloud.”
Leer más »
Spatially resolved imaging of the inner Fomalhaut disk using JWST/MIRI - Nature AstronomyJWST mid-infrared images of the nearby star Fomalhaut reveal a complex system of dusty rings and disks, created as debris from planetesimal collisions. These structures suggest the presence of a complex and probably dynamically active planetary system.
Leer más »
JWST captures images of the first asteroid belts seen beyond the Solar System | EngadgetSince 1983, astronomers have known the 440 million-year-old Fomalhaut is surrounded by dust and debris, but what they didn’t expect to find was three different debris fields surrounding the star..
Leer más »
Yellen: ‘No good options’ if Congress fails to act on debtAn increase in the debt limit would not authorize new federal spending. It would only allow borrowing to pay for what Congress has already approved.
Leer más »
Yellen: ‘No good options’ if Congress fails to act on debtTreasury Secretary Janet Yellen said Sunday that there are “no good options” for the United States to avoid an economic “calamity” if Congress fails to raise the nation’s borrowing limit of $31.381 trillion in the coming weeks.
Leer más »