A cosmic stream of atomic carbon gas connected to a massive radio galaxy at redshift 3.8 - Archive ouverte HAL
Article Dans Une Revue Science Année : 2023

A cosmic stream of atomic carbon gas connected to a massive radio galaxy at redshift 3.8

Résumé

The growth of galaxies in the early Universe is driven by accretion of circum- and inter-galactic gas. Simulations predict that steady streams of cold gas penetrate the dark matter halos of galaxies, providing the raw material necessary to sustain star formation. We report a filamentary stream of gas that extends for 100 kiloparsecs and connects to the massive radio galaxy 4C 41.17. The stream is detected using sub-millimeter observations of the [CI] line of atomic carbon, a tracer of neutral atomic or molecular hydrogen gas. The galaxy contains a central gas reservoir that is fueling a vigorous starburst. Our results show that the raw material for star formation can be present in cosmic streams outside galaxies.

Dates et versions

hal-04056064 , version 1 (03-04-2023)

Identifiants

Citer

Bjorn H.C Emonts, Matthew D Lehnert, Ilsang Yoon, Nir Mandelker, Montserrat Villar-Martin, et al.. A cosmic stream of atomic carbon gas connected to a massive radio galaxy at redshift 3.8. Science, 2023, 379 (6639), pp.1323-1326. ⟨10.1126/science.abh2150⟩. ⟨hal-04056064⟩
23 Consultations
0 Téléchargements

Altmetric

Partager

More