[Cosmo-torun] A spiral galaxy at z=2.18

[Boud Roukema]

On Fri, 20 Jul 2012, Andrzej Marecki wrote:

> Can a grand-design *spiral* galaxy be located at a redshift z=2.18?
> Yes it can!
>
> http://www.nature.com/nature/journal/v487/n7407/full/nature11256.html

Cool!

for z in 10 2.18; do echo $z |cosmdist -v -h 100 -m 0.28 -l 0.733 -t; done

Enter redshift: read parameter: 10.00000 
H_0= 100.00  Omega_matter= 0.28000  Omega_lambda= 0.73300  Omega_radiation = 0.00004950 w_0= -1.00000
cosmological time is 0.337055523 Gyr
Enter redshift: read parameter: 2.18000 
H_0= 100.00  Omega_matter= 0.28000  Omega_lambda= 0.73300  Omega_radiation = 0.00004950 w_0= -1.00000
cosmological time is 2.151303965 Gyr

So if the galaxy "formed" at z=10, then it had only about 1.8 h^-1 Gyr
to build up to the massive disk, according to an FLRW model with
Concordance parameters.


>
> --
> am
>
> _______________________________________________
> Cosmo-torun mailing list
> Cosmo-torun w cosmo.torun.pl
> http://cosmo.torun.pl/mailman/listinfo/cosmo-torun
>

_______________________________________________
Cosmo-torun mailing list
Cosmo-torun w cosmo.torun.pl
http://cosmo.torun.pl/mailman/listinfo/cosmo-torun