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trinitree88
2017-Jun-19, 02:19 PM
There's Giddy-up.....Whoa!....and Hold your Horses...when traveling by stagecoach. And, If you have an accelerating Universe, the local measures that confirm that ought to be pretty consistent to Giddy-up, too....but the authors Tutusaus, Lamine, Dupays, and Blanchard,..here think Naught. SEE:https://arxiv.org/abs/1706.05036 pete

George
2017-Jun-19, 03:07 PM
So where on the trail are we? The original discovery worked with z < 1 and discovered this horse had legs. This study works at z < 2, so do they lose their shoes beyond z = 1? :)

Shaula
2017-Jun-19, 03:40 PM
So if you allow the luminosity of SN1a to evolve in an arbitrary way to fit the data the data fits very well...

Not sure that is shocking news.

John Mendenhall
2017-Jun-19, 05:23 PM
So if you allow the luminosity of SN1a to evolve in an arbitrary way to fit the data the data fits very well...

Not sure that is shocking news.

True. We live and work in Amish country. It is not practical to put the cart before the horse.

Buttercup
2017-Jun-19, 05:31 PM
True. We live and work in Amish country. It is not practical to put the cart before the horse.

Ironically, yesterday we passed (a 2-lane county road) a stagecoach and four.

That looks like a really unpleasant way to travel. :hand: My sympathies to the travelers of yesteryear. :(

kzb
2017-Jun-21, 12:53 PM
yeh I can't tell this has much significance.

Surely, it can only mean something scientifically if they can come up with a valid reason why SN1a should evolve over time, and also in the way required by their model. If they can do that, they may be onto something.

Maybe that is the point, they are hoping, by putting this out there, someone will come up with a testable theory as to why SN1a evolve in the way required ?