The authors of the new work - British and Spanish astronomers - used information from
Such objects could become analogs of the very first galaxies formed in the Milky Way, so they can be studied in more detail.
The formation of galaxies can be compared toby car. The first galaxies may have had a star formation diesel engine, slowly but continuously forming new stars without much acceleration and smoothly turning gas into relatively small stars over long periods of time. Or the formation could be abrupt, with bursts of star formation producing incredibly large stars that destroy the galaxy and cause it to cease activity for a time or even forever. Each scenario involves different processes, such as galaxy mergers or the influence of supermassive black holes, that determine when and how the carbon or oxygen needed for life to originate appeared.
Pablo Perez-Gonzalez, employee of the Center for Astrobiology of Spain
As a result, the authors obtained the deepest data on dwarf galaxies. They were identified by their emission lines: they speak of recently begun star formation.
The study found that galaxy formationis accompanied by stops and bursts of activity, followed again by lulls, that is, most likely, the second hypothesis, which Gonzalez spoke about, is correct.
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