Hubble photographs a spiral galaxy 180 million light-years away


Another stunning image of the wonders of space was shared this week by researchers using the Hubble Space Telescope.

This Hubble image shows NGC 1961, its arms extending into the dark and swirling around its bright, crowded centre.

The galaxy is located 180 million light-years away, in the constellation Camelopardalis, or the giraffe. This lesser known constellation can be seen from the northern hemisphere and is large but faint.

This particular galaxy is distinguished by its active galactic core, the very bright region at its core.

Active galactic nuclei, or AGNs, are targets for study because they are much brighter than can be explained by the presence of stars there, as large amounts of radiation are produced when material falls into the supermassive black hole at their centers.

Hubble scientists explain that “NGC 1961 is an intermediate spiral and AGN, or active galactic nuclei, a type of galaxy”, “intermediate spirals lie between the ‘banned’ and ‘unbanned’ spiral galaxies, which means that they do not have a bar Well defined by the stars in their centers.

Active Galactic Nuclei (AGN) galaxies have very bright centers that often outshine the rest of the galaxy at certain wavelengths of light, Digitartlends reports.

These galaxies likely contain supermassive black holes in their cores that produce bright jets and winds that shape their evolution. NGC 1961 is a fairly common type of active galactic nucleus that emits low-energy charged particles. “

And although black holes themselves are invisible because they absorb light that approaches them, the areas directly surrounding the black hole can glow.

When dust and gas orbit the black hole in a structure called an accretion disk, dust and gas particles rub together and the temperature increases. These accretion discs can reach very high temperatures, even hotter than the surface of the Sun. They are bright because they emit radiation across the electromagnetic spectrum depending on the particular environment, including visible light and X-rays.

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