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Revolutionary Discovery: Molecular Gas Outflows from Quasars Impact Star Formation in Galaxies

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Dr. Jessica Nelson
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Revolutionary Discovery: Molecular Gas Outflows from Quasars Impact Star Formation in Galaxies

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Discovering Star Formation Suppression in the Early Universe

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A groundbreaking discovery has been made by a group of researchers led by Dragan Salak at Hokkaido University. The team has unearthed the first evidence of suppression of star formation driven by an outflow of molecular gas in a quasar-host galaxy in the early Universe. The quasar under observation, named J2054-0005, is notably one of the brightest quasars in the distant Universe. This significant discovery was made possible by the use of the Atacama Large Millimeter/submillimeter Array (ALMA) to observe the outflow of molecular gas from the quasar.

The Role of Quasars in Star Formation

The findings offer robust evidence that powerful molecular gas outflows from quasar-host galaxies exist and play a pivotal role in shaping galaxy evolution at the early cosmic age. This discovery furthers our understanding of the role of quasars in regulating star formation in galaxies. Quasars are capable of suppressing star formation in their host galaxies by ejecting molecular gas into intergalactic space.

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Observations and Findings

The outflow of molecular gas from the quasar J2054-0005 was observed in absorption. This innovative method of discovery highlights the presence of gas by observing the 'shadow' it casts in front of the light source. This observation provides the first strong evidence that powerful molecular gas outflows from quasar-host galaxies exist and impact galaxy evolution.

Implications of the Discovery

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This discovery not only confirms theoretical predictions but also provides crucial insights into the complex processes that shaped galaxies in the cosmic dawn. These outflows significantly influence star formation in galaxies and may inhibit the star formation rate. The outflowing molecular gas discovered in absorption plays a crucial role in controlling star formation in galaxies.

First Evidence of Star Formation Suppression

The research team, including Takuya Hashimoto at the University of Tsukuba and Akio Inoue at Waseda University, has elucidated the initial evidence of star formation suppression triggered by an outflow of molecular gas in a quasar-host galaxy in the early Universe. They confirmed that molecular gas is being expelled from the galaxy, as predicted, and measured the flow rate of the outflow, providing the first evidence for star formation suppression caused by a molecular gas outflow from a quasar-host galaxy in the early Universe.

Conclusion

The discovery of molecular gas outflows from quasars is a monumental step forward in understanding the universe's early cosmic age. The research findings, backed by empirical evidence, confirm the theoretical predictions about the role of quasars in star formation. The discovery further opens up new avenues for exploring galaxy evolution and the role of other factors in star formation. As our understanding of the universe continues to evolve, such crucial discoveries bring us closer to unraveling the mysteries of the universe.

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