2021-11-25

Hubble captured the giant “celestial prawns” drifting in the depths of the universe

By yqqlm yqqlm

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4337d6c6dee331b - Hubble captured the giant "celestial prawns" drifting in the depths of the universe

the spotted shrimp nebula, also known as IC 4628, is an emission nebula, which means that its gas has been excited or ionized by the radiation of nearby stars. Radiation from these massive stars separates electrons from the nebula’s hydrogen atoms. When these excited electrons recover from the high-energy state to the low-energy state by recombining with the hydrogen nucleus, they emit energy in the form of light, causing the gas in the nebula to glow. In this picture, red indicates the presence of ionized iron (FE II) emission

Hubble captured the giant “celestial prawns” drifting in the depths of the universe

this Hubble Space Telescope image was taken as part of an investigation into massive and medium-sized “protostars”, or newly formed stars. Astronomers use the infrared sensitivity of Hubble wide field camera 3 to look for ultraviolet ionized hydrogen ionized by protostars, as well as ejecta and other features from stars