NASA’s Hubble captures NGC 4536, a starburst galaxy in Virgo with intense star formation and glowing gas clouds.
NGC 4536 is a starburst spiral galaxy with bright blue star clusters and pink hydrogen clumps
Photo Credit: NASA, ESA, and J. Lee (Space Telescope Science Institute
A striking image of the starburst galaxy NGC 4536 has been released by NASA, showcasing its vivid blue star clusters and glowing pink hydrogen gas. Situated approximately 50 million light-years from Earth in the Virgo constellation, this intermediate spiral galaxy displays a dynamic environment where new stars are forming at an accelerated rate. The image, taken by the Hubble Space Telescope, highlights a bright central region encircled by sweeping spiral arms teeming with stellar nurseries. The rapid formation of stars in NGC 4536 has placed it in the category of starburst galaxies, which exhibit significantly higher star formation rates than the average galaxy.
According to NASA, gravitational interactions or concentrated gas accumulation in a compact region often trigger starburst activity. In the case of NGC 4536, its bar-like structure is believed to channel gas toward the core, intensifying the process. The galaxy is a part of the M61 Group within the Virgo Cluster, where the gravitational influence of nearby galaxies contributes to compressing interstellar gas, providing favourable conditions for stellar birth.
Massive, hot blue stars are being rapidly produced in this galaxy, but their short lifespans lead to intense ultraviolet radiation emissions. These stars burn out quickly, ending their cycles in supernovae that disperse energy across the surrounding regions. This ultraviolet radiation ionizes hydrogen gas, creating luminous pink regions known as HII zones. The presence of these zones, visible in the Hubble image, indicates areas where new stars are emerging.
This image was taken as part of a broader effort to investigate the relationship between young stars and interstellar gas in nearby galaxies. By examining starburst environments like NGC 4536, astronomers aim to gain deeper insights into how galaxies evolve and how interstellar material influences the birth of stars.
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