Why are elliptical galaxies red? Why do meteorites come from the asteroid belt? What is the significance of the Oort cloud? What does comet mean in science? Why was the asteroid belt formed near Jupiter? Why is the Oort cloud called the Oort cloud?
X-rays : galaxiesIf mass and angular momentum were conserved in cooling flows associated with luminous, slowly rotating elliptical galaxies, the inflowing hot gas would spin up, resulting in disks of cold gas and X-ray images that are highly flattened along the equatorial plane out to several ...
Why does a star become a red giant? Why is the sky dark at night? Why is stellar nucleosynthesis important? Why will Polaris not always be the North Star? Why are gas planets considered planets? Why are there no seasons on Jupiter? Why are elliptical galaxies red? Why do gas planets ha...
In other galaxies, however, the motions of stars have a greater degree of randomness, with their orbits adopting a wide variety of velocities and angles relative to the plane of their galaxy. In elliptical galaxies, this is often easy to explain: It's the result of a major galaxy merger ...
Why z > 1 radio-loud galaxies are commonly located in proto-clusters 来自 Semantic Scholar 喜欢 0 阅读量: 49 作者: NA Hatch,D Wylezalek,JD Kurk,D Stern,BC De,MJ Jarvis,A Galametz,AH Gonzalez,WG Hartley,A Mortlock 展开 摘要: Distant powerful radio-loud active galactic nuclei (RL...
t occur for around 5 billion years but it’s possible that such crashes, or mergers, play some part in “quenching” star-forming, spiral galaxies, turning them into dead elliptical galaxies. The theory suggests that this process takes place, but scientists are still in the process of ...
Dwarf galaxies are also considered galaxies. Pluto, Ceres, and Eris should be considered smaller planets. We are going to find a lot bigger objects out there. S. Alan Stern predicted Earth sized Kuiper Belt Objects. Let’s keep Astronomy honest. These are just a new class of planet. Stern...
(home of Sagittarius A*). Right: As a super giant galaxy, M87 is visible to the naked eye from 54 million light years away. But as an elliptical galaxy, it looks like a smudge on the lens. That tiny blue tail is a jet of plasma (one of two) that’...
A rogue black hole.Once in a while, one of these creeps wanders into a solar system uninvited and wreaks havoc. Even without passing close to the Earth, if one passed even as close as a billion miles from us, it would fling the Earth into a more strongly elliptical orbit, turning our...
Why are the shells visible around some elliptical galaxies significant? Explain why an object in water always appears to be at a depth shallower than it actually is. How do continental shelves differ from continental slopes? Which are the true edges of continents? Why...