A pair of dusty star-forming galaxies seen 13 billion light years away
A pair of dusty star-forming galaxies seen 13 billion light years away

A pair of dusty star-forming galaxies seen 13 billion light years away

A pair of dusty star-forming galaxies :

A pair of dusty star-forming galaxies seen 13 billion light years away – A pair of dusty galaxies that formed stars were seen 13 billion light years away, using the Atacama Large Millimeter / Submillimeter Array (ALMA), an international team of astronomers discovered a system of dusty galaxies unpublished in the early universe. I have seen the nickname MAMBO-9 (also known as MM J100026.36 + 021527.9), the system consists of a pair of galaxies separated by approximately 20,000 light years. The light of MAMBO-9 traveled about 13 billion years to reach Earth.

The dusty star-forming galaxies are the most intense star nurseries in the universe. They contain large amounts of gas and dust and form stars at a speed of up to a few thousand solar masses per year.

Such monstrous galaxies are not expected to form early in the history of the universe, but astronomers have already discovered many of them, when the universe was less than a billion years old.

Because of their extreme behavior, astronomers find that these dusty galaxies play an important role in the evolution of the universe.

“These galaxies hide in direct view. We know they are out there, but they are not easy because their starlight is hidden in dust clouds, “said Dr. Katlin Casey, an astronomer at the University of Texas at Austin.

MAMBO-9 was first detected 10 years ago by the Max-Planck Millimeter Meter (MAMBO) on the 30-meter IRAM telescope in Spain and the Plateau de Bure interferometer in France. But those comments were not sensitive enough to reveal the distance.

“If it were real, we were skeptical, because we couldn’t find it with other telescopes. But if it were real, it should have been far away,” said Dr. Manuel Arevena, of the Diego Portals University in Chile. A researcher of.

ALMA radio image of MAMBO-9. Image credit: ALMA / ESO / NAOJ / NRAO / Casey et al / AUI / NSF / B. Saxton.

Due to the sensitivity of ALMA, the team can now determine the distance to MAMBO-9.

“We prepared the galaxy in a new ALMA survey to specifically identify the dusty galaxies that form stars in the early Universe. And the amazing thing about this observation is that it is the furthest it has ever been. There is a dusty galaxy, which we have seen without obstacles.

The scientists saw the MAMBO-9 directly without a gravitational lens, and this allowed them to measure its mass.

“The total mass of gas and dust in the galaxy is very large: 10 times larger than all the stars in the Milky Way. That means that most of its stars have not yet formed,” said Dr. Casey.

Astronomers expect more dusty galaxies to be found in the ALMA study, which will reveal how common they are, how these massive galaxies formed so early in the universe and why they are so dusty. 

The discovery of MAMBO-9 is described in an article in the Astrophysical Journal.

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A pair of dusty star-forming galaxies seen 13 billion light years away
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A pair of dusty star galaxies seen 13 billion light years away, A pair of dust-forming galaxies were seen 13 billion light years away, using the Atacama Large Millimeter / Submillimeter Array (ALMA), a team Astronomers International discovered a system of unprecedented dusty galaxies in the early universe. I have seen the nickname MAMBO-9 (also known as MM J100026.36 + 021527.9), the system consists of a pair of galaxies separated by about 20,000 light years. The light of MAMBO-9 traveled about 13 billion years to reach Earth.

The dusty galaxies that form stars are the most intense star nursery in the universe. They contain large amounts of gas and dust and produce stars at speeds of up to a few thousand solar masses per year.

Such demonic galaxies are not expected to form early in the history of the universe, but astronomers have discovered many of them when the universe was less than one billion years old.

Because of their extreme behavior, astronomers find that these dusty galaxies play an important role in the evolution of the universe.

“These galaxies hide in direct view. We know they are out there, but they are not easy because their starlight is hidden in dust clouds, ”said Dr. Caitlin Casey, an astronomer at the University of Texas at Austin.

The MAMBO-9 was discovered 10 years ago by the Max-Planck millimeter (MAMBO) in a 30-meter IRAM telescope in Spain and the Plateau de Bure interferometer in France. But those comments were not sensitive enough to reveal the distance.

“If it were real, we were skeptical, because we couldn’t find it with other telescopes. But if it were real, it should have been far away,” said Diego, Dr. Diego, University of Chile. Manuel Manuel said. A researcher of.

ALMA radio image of MAMBO-9. Image credit: ALMA / ESO / NAOJ / NRAO / Casey et al / AUI / NSF / B. Saxton.

Due to the sensitivity of ALMA, the team can now determine the distance to MAMBO-9.

“We designed the galaxy in a new ALMA survey to identify the dusty galaxies that make up the stars, especially in the early Universe. And the amazing thing about this observation is that it is the furthest dusty galaxy ever found. It looks unobstructed.

The scientists saw the MAMBO-9 directly without a gravitational lens, and this allowed them to measure its mass.

“The total mass of gas and dust in the galaxy is much greater: 10 times greater than all the stars in the Milky Way. That means that most of its stars have not yet formed,” said Dr. Casey.

Astronomers expect more dusty galaxies to be found in the ALMA study, which will explain how common they are, why these massive galaxies formed so early in the universe and why they are so dusty.

The discovery of MAMBO-9 is described in an article in the Astrophysical Journal.

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