Intergalactic stream of cosmic carbon feeding massive galaxy

Subject : Science and technology

Section: Space technology

Concept :

Radio telescope observations have revealed a cold stream of intergalactic atomic carbon gas feeding star formation in a massive radio galaxy in the young Universe.
The findings provide observational evidence supporting theoretical cosmological models and offer new insights into the origins of the cosmic materials that enable galaxy and star formation.
Galaxies evolve by accreting gas, either in mergers with other galaxies or from streams of cold molecular gas.

Cold dark matter theory:

The theory suggest that hydrogen gas created in the big bang collapses first into sheets and then into filaments strung out across space.
In places where filaments cross or are clustered together, galaxies form and the filaments continue to fuel the growth of galaxies by feeding them a steady stream of gas.

Cosmic Web:

Galaxies across the universe are connected by a complex structure made up of filaments of dark matter and sheets of hydrogen gas. The network connecting these intergalactic filaments is known as cosmic web.
The existence of the cosmic web is central to current theories of how galaxies first formed following the big bang, however, evidence for it had remained largely theoretical.
The recent observations of the cosmic web support the cold dark matter theory of galaxy formation.