Astronomers Spot Baby Galaxies Cradled In Dark Matter (phys.org)

An anonymous reader writes: Astronomers discovered a nest of monstrous baby galaxies 11.5 billion light-years away using the Atacama Large Millimeter/submillimeter Array (ALMA). The young galaxies seem to reside at the junction of gigantic filaments in a web of dark matter (abstract). These findings are important for understanding how monstrous galaxies like these are formed and how they evolve in to huge elliptical galaxies. The team found that their young monstrous galaxies seemed to be located right at the intersection of the dark matter filaments. This supports the model that monstrous galaxies form in areas where dark matter is concentrated. And since modern large elliptical galaxies are simply monstrous galaxies which have mellowed with age, they too must have originated at nexuses in the large scale structure.

Comments

Dark Matter Filaments

[Capt.Albatross]

Is it not a matter of conjecture that these galaxies are forming in regions where dark matter is concentrated? - a reasonably well-founded conjecture perhaps, but not corroborated by any evidence beyond that which is the basis of the conjecture?

Re:Dark Matter Filaments

[burtosis]

The dark matter filiments are observable by the lensing effect of the gravity they exhibit. So it's not conjecture is an observable and repeatable fact that there is something equivelant to mass there.

Re:Question for physicists

[burtosis]

Through microlensing of objects located behind the filiments. So yes by the lensing effects.

Re:So we found Dark Matter ?

[ZincFinger]

How is that trolling ? Title implies Dark Matter as a fact. Show me the proof for Dark Matter.

Re:So we found Dark Matter ?

[KGIII]

The proof is the lensing. You're thinking that dark matter is something that it is not and that's not surprising given the reporting that I've seen on the subject. No, dark matter is real. What is *really is* is in question.