Csillaghalálozási

Csillaghalálozási is a Hungarian term that translates to "star death" or "stellar death" and refers to the various processes by which stars reach the end of their active lifespan. The specific mechanism of a star's death depends heavily on its initial mass. Low-mass stars, like our Sun, will eventually exhaust their hydrogen fuel, expand into red giants, and then shed their outer layers to form a planetary nebula, leaving behind a dense white dwarf. These white dwarfs will slowly cool over billions of years to become black dwarfs.

More massive stars undergo a more dramatic end. After exhausting their nuclear fuel, they collapse under their own gravity, triggering a supernova explosion. This cataclysmic event can briefly outshine an entire galaxy and is responsible for creating and dispersing many of the heavier elements found in the universe. The remnant left behind after a supernova depends on the star's mass. If the core is between about 1.4 and 3 times the mass of the Sun, it will collapse into an ultra-dense neutron star. If the core is even more massive, it will collapse further to form a black hole, an object with gravity so strong that nothing, not even light, can escape. The study of csillaghalálozási is crucial for understanding stellar evolution, the chemical enrichment of the cosmos, and the formation of exotic celestial objects.