Timeline for Why are there so few supernovae in M31 (Andromeda)?
Current License: CC BY-SA 4.0
4 events
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| May 14, 2020 at 16:49 | comment | added | HDE 226868♦ | @SteveLinton It's certainly a relatively recent change. The likely culprit is gas depletion, possibly spurred by star formation bursts within the last couple billion years and a high star formation efficiency, leading to a gas fraction that's lower than the Milky Way's. | |
| May 14, 2020 at 16:36 | vote | accept | Steve Linton | ||
| May 14, 2020 at 16:36 | comment | added | Steve Linton | Thanks. Perhaps I should ask this as a separate question, but is there a clear cause for the lower star formation rate? Closely related, is this a long-term state of affairs, or just a "chance of the moment"? | |
| May 14, 2020 at 16:23 | history | answered | HDE 226868♦ | CC BY-SA 4.0 |