NASA detects galactic winds of 3.2 million km/h in the Messier 82 galaxy

The Nasa mission Xrism confirmed the existence of stellar winds in the galaxy Messier 82 that reach speeds of 3.21 million kilometers per hour. The phenomenon occurs in the nucleus of the galaxy, located about 12 million light-years from Terra, where intense star formation activity creates an environment of extreme pressure and temperature. The data reveals that superheated gas is continually expelled, transporting matter to the edges of the galactic system.

The discovery was published in the journal Nature on March 25 and represents a significant advance for modern astronomy. The team of researchers used high-precision instruments to measure the X-ray radiation emitted by superheated iron at the center of the galaxy. Observations demonstrate that heat in the galactic core reaches 25 million degrees Celsius, creating the force needed to drive cosmic winds on massive scales.

Velocidades that surprise classical theoretical models

The researchers noted that the measured speed of 3.2 million kilometers per hour exceeds the predictions of some theoretical models developed decades ago. Ondas shocks resulting from star formation and supernova explosions near the core heat the gas and initiate this powerful movement. The technological capabilities of the Xrism mission made it possible, for the first time, to test these hypotheses with mathematical and visual precision.

The outflow is so intense that it manages to drive the galactic wind to the outer edges of the structure, overcoming the galaxy’s internal gravity barriers. Esse large-scale displacement of matter alters the composition of the intergalactic medium, enriching empty space with heavy elements forged within stars.

Cigar Galaxy Major Características

• Messier 82 is classified as a starburst galaxy because it forms stars ten times faster than Via Láctea.
• The Resolve instrument on the Xrism spacecraft was instrumental in capturing the unprecedented speeds of the hot gas flow.
• The central region annually expels the equivalent of the mass of seven suns into intergalactic space.
• Dados collected by telescopes such as Hubble, James Webb and Chandra aid in understanding the flow of dust and cold gas.

The galaxy is popularly known as Galáxia from Charuto due to its elongated shape and the presence of visible cold winds. Esses streams of gas and dust extend approximately 40,000 light-years from the core, creating a vast cloud around the main stellar structure. Intense star birth activity consumes gaseous resources at a frenetic pace, much higher than that observed in ordinary spiral galaxies.

The mystery of the missing solar masses

Measurement of the expelled material revealed that the center of the galaxy expels enough gas to form seven suns every Earth year. However, calculations indicate that only four solar masses are integrated into the larger, cooler wind that extends across the galactic periphery. Essa discrepancy of three extra solar masses creates a puzzle about the final fate of this superheated material leaving the core.

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Astronomers have not yet determined whether this surplus escapes the galaxy in an as-yet-undetected form of hot gas or whether it remains somewhere in between. The space mission will continue to monitor Galáxia’s Charuto to identify new patterns of behavior in thermal winds and reveal the path of missing solar masses.

X-ray Tecnologia revolutionizes astronomical observations

The use of X-ray sensors is essential to see through the dense dust clouds that block visible light at the center of the galaxy. The iron present in the superheated gas works as a chemical marker, allowing instruments to identify the exact speed at which matter moves. The success of this measurement paves the way for the mission to continue observing other similar systems in the deep universe.

The team plans to use this data to refine galaxy evolution simulators and understand how stellar feedback influences the growth of galaxies over billions of years. The international collaboration led by Nasa and the Japanese space agency demonstrates the importance of specialized spectroscopy instruments for exploring high-energy objects.

Implicações for the future of starburst galaxies

The thermal pressure generated by the 25 million degree Celsius works in a way analogous to weather systems, moving masses from areas of high pressure to low pressure. The constant and fast movement of these winds ensures that the galaxy loses mass at an accelerated rate, which could affect its future longevity. Estudar This dynamic is vital for predicting how long a starburst galaxy can maintain its high rate of star formation before running out of fuel.

Understanding these galactic winds helps explain why some galaxies stop growing while others continue to evolve. The study of Messier 82 serves as a natural laboratory to observe extreme physical processes that cannot be reproduced under terrestrial conditions, consolidating the importance of space exploration for astronomical knowledge.