According to the study's authors, the cold flow of intergalactic atomic carbon dioxide is so
Researchers led by Dr. BjornEmonts, an associate scientist at the National Radio Astronomy Observatory, used the Atacama Large Millimeter/submillimeter Array (ALMA) to map the atomic carbon gas surrounding galaxy 4C 41.17.
4C 41.17 is a large radio galaxy from the early Universe. This means the researchers had to maximize the radio telescope's sensitivity to surface brightness using ALMA's most compact, low-resolution configuration.
The emission of carbon atoms in the flow is highlighted in blue. Photo: Emonts (NRAO/AUI/NSF)
According to the astronomers who published the results.study in the journal Science, it was this low-resolution configuration that likely helped reveal the cold molecular flow that had been hidden and gone undetected in previous studies. New observations have revealed a narrow stream of cold gas extending at least 100 kiloparsecs (~326,000 light years) beyond the galaxy and into intergalactic space. It is several times larger than the galaxy it apparently feeds.
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Credit: Spitzer Space Telescope - Caltech