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Well it seems like we've detected 3 other jets pointed straight at us as the black hole devoured a star so it seems like a very common event on a geological tim
by Gh0stRAT 4y ago
Well it seems like we've detected 3 other jets pointed straight at us as the black hole devoured a star so it seems like a very common event on a geological time scale. The fact that we managed to evolve and are still here is a decent sign.
>The team says the black hole's jet may be pointing directly toward Earth, making the signal appear brighter than if the jet were pointing in any other direction. The effect is "Doppler boosting" and is similar to the amped-up sound of a passing siren.
>AT 2022cmc is the fourth Doppler-boosted TDE ever detected and the first such event that has been observed since 2011.
Also, I believe that as the universe's volume expands, the probability and intensity of being in the direct path of any particular such jet goes down. Then again, the frequency of these events may (or may not) be increasing at a rate that more than counteracts that. (I'm just speculating here, I'm not a cosmologist!)
- dotnet00 4y agoMost of the threat from relativistic jets is from within ones own galaxy (and at worst, its local group). So, yes as the universe expands the risk from the latter should decrease, the risk from the former wouldn't really change due to expansion. The risk probably does still come down, but more due to age as larger clouds of gas get used up and spread around by supernovae, preventing enough mass from gathering for the things that produce relativistic jets. One possible answer to the Fermi paradox is that we're early because the universe may have only recently gotten calm enough for life to survive long enough to develop intelligence.