The Milky Way galaxy moves within the Local Group, which is gravitationally bound and orbits a common center. Unlike the circular motion of the sun around the Milky Way's center, the dynamics of galaxies in the Local Group are more complex due to their larger sizes and interactions. These interactions can lead to phenomena such as galaxies ripping each other apart, indicating that their motion isn't simply elliptical. The mass distribution within the Local Group complicates the understanding of galaxy movements, suggesting they may not follow traditional orbital patterns. Overall, the Milky Way's movement is influenced by its gravitational relationships with other galaxies in the Local Group.
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abdossamad2003
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How does the Milky Way galaxy move in the local Group? Is there a circular motion around the center of the local Group like the sun moves around the center of the galaxy?
I believe the Local Group is gravitationally bound, so there is a common center about which its mass must collectively orbit. However, the group is only about 100 times the diameter of the Milky Way, so galaxies are much larger in comparison to the spaces between them than stars are, so they interact in more complex ways than stars typically do - ripping each other apart, for example.
All that means that I think you have a mass distribution that isn't really well described as a fluid (like a galaxy) or a collection of point masses orbiting one (like a solar system). So I would suspect that galaxy motions aren't pure ellipses, because they interact a lot (and there are definitely satellite galaxies of the Milky Way). But I am not certain.
TL;DR Summary: In 3 years, the Square Kilometre Array (SKA) telescope (or rather, a system of telescopes) should be put into operation. In case of failure to detect alien signals, it will further expand the radius of the so-called silence (or rather, radio silence) of the Universe. Is there any sense in this or is blissful ignorance better?
In 3 years, the Square Kilometre Array (SKA) telescope (or rather, a system of telescopes) should be put into operation. In case of failure to detect...
This is indirectly evidenced by a map of the distribution of gamma-ray bursts in the night sky, made in the form of an elongated globe. And also the weakening of gamma radiation by the disk and the center of the Milky Way, which leads to anisotropy in the possibilities of observing gamma-ray bursts. My line of reasoning is as follows:
1. Gamma radiation should be absorbed to some extent by dust and other components of the interstellar medium. As a result, with an extragalactic origin, fewer...
I hope this appropriate place. I'm just an average guy asking a question. Does time pass at different rates on other planets in our solar system?
In fact, if we were able to reach another solar system with an earth like planet orbiting a much larger sun, would the inhabitants of that planet age at a different rate than us?