New Simulation Shows How Seeds of First Stars FormedJR Minkel
However, the interior may vary with respect to the location of the layers. Stars like the Sun and those less massive than the sun have the layers in the order described above. Stars that are several times more massive than the sun have convective layers deep in their cores and radiative ou...
We investigate the effect of circumstellar disks on the dynamical evolution of a small cluster of protostars formed by 'prompt initial fragmentation'. In particular we study how the presence of disks affects the resultant mass components of binaries formed in the cluster. We find that when the ...
Slow-spinning clouds could have formed elliptical galaxies. Cooling: High-density protogalactic clouds cooled faster, using up all the gas and dust in forming stars and leaving none for making a galactic disk (this is why elliptical galaxies don't have disks). Low-density protogalactic clouds ...
–How many galaxies are there? –Hubble’s law: Why are most galaxies moving away from us? –How black holes and galaxies play tug-of-war across the cosmos As the gas collapsed and its density increased, some stars formed very early on, before the gas had stabilised into a rotating disc...
supermassive stars. In early Universe which is still little enriched with heavy elements, stellar winds are typically weak and the stellar collision products will retain most of their mass. At the ends of their lives, these collisionally formed supermassive stars collapse and ...
The Wilson Effect states that sunspots are depressions on the Sun’s surface. The Zeeman effect, on the other hand, show that prototypical sunspots come in pairs with contrasting magnetic polarity. In each cycle, sunspots change from north to south and from south to north and back. They appe...
protosun's interior. When this happened, the energy released by these reactions stopped the contraction, and a large amount of light energy was radiated into space. The protosun had become a star. Nuclear reactions continue to the present day in the interior of the Sun and are the source ...
“Our solar system was most likely formed in a giant molecular cloud together with a young stellar cluster, and one or more supernova events from some massive stars in this cluster contaminated the gas which turned into the sun and its planetary system,” says co-author Douglas N. C. Lin...
Some astronomers have suggested that a separate planet or protoplanet actually formed between the two planets, but the impact of a high-speed comet broke up and scattered the newly formed body to create what we now know as the main or original asteroid belt. While it's possible that comets...