The Hubble team has unveiled a stunning close-up image of the barred spiral galaxy IC 486.
This captivating Hubble image portrays IC 486, a barred spiral galaxy approximately 380 million light-years away in the constellation Gemini. Image credits: NASA / ESA / Hubble / MJ Koss / AJ Barth.
IC 486 is situated in the constellation Gemini and lies about 380 million light-years from Earth.
This galaxy, recognized by other designations such as LEDA 22445, IRAS 07572+2645, and UGC 4155, was discovered on March 6, 1891, by Austrian astronomer Rudolf Ferdinand Spitaler.
IC 486 features a striking central rod-like structure, from which spiral arms extend and wrap around the core in a cohesive, ring-like formation.
According to Hubble astronomers, “Hubble’s advanced imaging technology reveals subtle color variations throughout IC 486.”
The core displays a blue-white hue dominated by older stars, while faint bluish areas within the surrounding disk indicate regions of more recent star formation.
“Dust lanes weave through the galaxy, gently obscuring light and pinpointing areas enriched with molecular gas where new stars are likely to emerge,” they noted.
The center of the galaxy emanates a distinctive white glow, which surpasses the surrounding stellar light. This glow originates from IC 486’s active galactic nucleus (AGN), powered by a supermassive black hole that is over 100 million times the mass of the Sun.
“All sufficiently large galaxies harbor supermassive black holes at their cores, but some are particularly voracious, consuming significant amounts of gas and dust, forming swirling accretion disks from which they derive their energy,” the astronomers elaborated.
“The immense heat generated by the orbiting material produces intense radiation, including X-rays, that can outshine the entire galaxy.”
Such galaxies, characterized by their central AGN, are referred to as active galaxies.
Despite IC 486’s orderly appearance, “it is a dynamic system shaped by gravitational forces and the evolution of stars,” they concluded.
“Over millions of years, stars are born, age, and perish, contributing to the ongoing narrative of galactic evolution in our universe.”
Source: www.sci.news
