IRS12

IRS 12 is a bright infrared source located in the central parsec of the Milky Way, near the Galactic Center and the supermassive black hole Sgr A. It is one of the features designated with the Infrared Source (IRS) nomenclature used to catalog compact infrared sources in the region. The IRS 12 complex is associated with the dense, young-star population that lies close to Sgr A, and several components have been identified in high-resolution imaging, though the exact structure can vary with wavelength and resolution.

Observations in near- and mid-infrared wavelengths show strong emission from hot dust and ionized gas, with spectral features that are broadly consistent with early-type stellar spectra or compact stellar clusters embedded in gas. While the precise nature of IRS 12 is debated, it is generally regarded as a young, massive star or a small cluster rather than a single evolved star. Its infrared luminosity and colors indicate substantial extinction and a surrounding dusty environment.

Due to its proximity to Sgr A, IRS 12 serves as a probe of the nuclear star cluster’s kinematics and the interaction between stellar winds and the ambient medium in the central region of the Galaxy. Proper motion measurements from high-resolution imaging have been used to study its dynamic behavior in the Galactic Center potential.

IRS 12 was first identified in infrared surveys of the Galactic Center conducted in the late 20th century and has since been studied with facilities such as the Very Large Telescope and Keck, contributing to maps of the central stellar population and to understanding star formation under extreme tidal forces.