3 ms·
This is breathtaking. I marvel at what we are able to see. Small quibble though: I wish they would say, '... finds galaxy with the highest known redshift.' Mayb
by nhatcher 2y ago
This is breathtaking. I marvel at what we are able to see. Small quibble though: I wish they would say, '... finds galaxy with the highest known redshift.' Maybe not so pompous, but especially after all the recent news about the size and age of the universe due to JWST observations.
- ziddoap 2y agoI'm not sure I understand your distinction, can you explain why you wish that? My understanding is that there is a linear correlation between the redshift of a galaxy and the distance to the milky way (for distant galaxies where the peculiar velocity is negligible). So, the most redshifted galaxy is the most distant galaxy. But, I'm just a layman who enjoys astronomy, so I'd appreciate an explanation on why the distinction is important.
- nhatcher 2y agoYou are right, of course. But that is based on our standard cosmological model. But there is some controversy in this respect. It is not as clear cut as the relationship with C14 and age, for instance. There are some recent discoveries of galaxies that if their age and distance are correct clearly contradicts the standard cosmological model. But, even if I am right, it is a small nitpick. I think from this news I rather just wonder.
- mr_mitm 2y agoIt's linear for small redshifts only. In general it depends on what distance you mean, but it's never linear. This does not change the validity of your argument of course. Check https://en.m.wikipedia.org/wiki/Distance_measure https://en.m.wikipedia.org/wiki/Distance_measure