The same physical forces also affect the look of the pointed "arms" that can be seen around the rims of such galaxies. "The types of spiral arms are almost certainly related to the rotation rate," GuhaThakurta says. Rapidly rotating systems tend to have a ring of small, tight arms. In...
Those rings are pretty exciting places themselves. Inside of them there are bound to be “lumps” of higher density that draw in surrounding material. Eventually this turns into smaller accretion disks within the larger disk. Our solar system formed as a disk with all of the planets...
Additionally, the conservation of angular momentum plays a role in the rotation of galaxies, stars, and planets. This can also explain why galaxies tend to have a relatively flat spiral shape. As for objects in the quantum realm, they may also have a form of rotation, but it is defined ...
Those stars were born hotter with more random motions, which contributes to the thick disk being 1,000 light-years deep, as those random motions are at steeper angles to the galactic plane. The conclusions of Croom and van de Sande's team are based on observations of 3,000 galaxies across...
What this means is that space and time are connected – if you move really fast through space, time slows down for you compared to someone who is moving slowly. This is why astronauts – who are moving very fast in space –age a tiny bit more slowly than people on Earth. ...
The Milky Way, our cosmic home, contains between 100 and 400 billion stars. The galaxy is thought to have formed 13.6 billion years ago, originating from a rotating cloud of gas composed of hydrogen and helium. The gas then accumulated over billions of years in a rotating disk, where stars...
Experimental/ clusters of galaxiescosmologydark energyrotating bodies/ Hubble flowcosmological expansionobservation horizonLocal Volumegalaxy motionsLocal Groupdynamical modelsThe problem of the physical nature of the Hubble flow in the Local Volume ( D < 10 Mpc) stated by Sandage is studied. New ...
They play important roles in galaxies, perhaps even in the large-scale behavior of the universe and more. The other thing to note about black holes is that they are very ‘simple’ especially when compared to stars and other astrophysical objects. This is a consequence of the so-called ‘...
able to pinpoint the location of some to othergalaxies—none appear to take place inside the Milky Way—as well as see some happening inreal-timeand even witness FRBs that repeat. Despite numerous observations and plenty of data, we're still at a loss to explain exactly what they are. ...
The same physical forces also affect the look of the pointed "arms" that can be seen around the rims of such galaxies. "The types of spiral arms are almost certainly related to the rotation rate," GuhaThakurta says. Rapidly rotating systems tend to have a ring of small, tight arms. In...