NGC 3256
NGC 3256 is a peculiar galaxy located approximately 100 million light-years away in the constellation Vela. It is the result of a major galactic merger between two spiral galaxies, a process that is still ongoing and evident in its highly disturbed morphology.
The merger has triggered intense star formation throughout the galaxy, making it a luminous infrared galaxy (LIRG). This high rate of star birth is fueled by the abundant gas and dust brought together by the collision, which are compressed and ignited into new stars.
Key features of NGC 3256 include prominent tidal tails stretching far out into space, which are remnants of the original spiral arms of the merging galaxies. These tails are composed of stars, gas, and dust flung out during the interaction. The galaxy also exhibits a complex system of dust lanes and disturbed gas clouds.
The two galactic nuclei, the original centers of the merging spirals, are still identifiable within NGC 3256. They are gradually spiraling towards each other and will eventually coalesce into a single supermassive black hole at the center of the resulting elliptical galaxy.
NGC 3256 serves as an important laboratory for studying the processes of galaxy mergers and their role in galaxy evolution. It provides valuable insights into how these dramatic events can transform galaxies, trigger star formation, and ultimately shape the structure of the universe.