Timeline for Creating a realistic world(s) map - Stars
Current License: CC BY-SA 3.0
13 events
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| May 28, 2017 at 1:23 | history | edited | JDługosz | CC BY-SA 3.0 |
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| Apr 13, 2017 at 12:59 | history | edited | CommunityBot |
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| Apr 13, 2017 at 12:40 | history | edited | CommunityBot |
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| Sep 16, 2015 at 14:04 | history | bounty ended | Tim B | ||
| Sep 11, 2015 at 1:26 | comment | added | HDE 226868♦ | Okay, thanks, those clarifications help quite a lot. I do think that "What explains the density" is on topic here; it is inline with a lot of the other Creating a Realistic Worldmap questions. | |
| Sep 11, 2015 at 1:24 | comment | added | JDługosz | "What explains the density" is a question for Physics or Space or Astronomy SE, and off-topic here. | |
| Sep 11, 2015 at 1:17 | comment | added | JDługosz | Different features have different origins. (1) Flattened disk shape, (2) radial function, (3) spiral arms. I've seen a video that shows the natural emergence of spiral arms due to slight eccentricity of each orbit. Being a dense region, it behaves like a traffic jam: stars accelerate up to it and a held back from leaving it, because the denser region attracts. So any clump once formed will persist, moving with its own velocity in either direction superimposed on the main traffic. | |
| Sep 10, 2015 at 22:23 | comment | added | HDE 226868♦ | Thanks for the answer and research. I was aware of the density models (I'd looked at quite a few galactic tomography papers from SSDS). Can you explain why the density distribution behaves as it does? | |
| Sep 10, 2015 at 19:48 | history | edited | JDługosz | CC BY-SA 3.0 |
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| Sep 10, 2015 at 19:22 | history | edited | JDługosz | CC BY-SA 3.0 |
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| Sep 10, 2015 at 18:47 | history | edited | JDługosz | CC BY-SA 3.0 |
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| Sep 10, 2015 at 18:03 | history | edited | JDługosz | CC BY-SA 3.0 |
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| Sep 10, 2015 at 17:45 | history | answered | JDługosz | CC BY-SA 3.0 |