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SPIRE spectrum of Arp 220

SPIRE spectrum of Arp 220


Date: 26 November 2009
Satellite: Herschel
Copyright: ESA and the SPIRE consortium; inset: NASA, ESA, Hubble Heritage Team

This is one of the early spectra obtained with the SPIRE fourier transform spectrometer on Herschel. Shown here is spectrum of Arp 220, a galaxy 250 million light years distant from Earth with very active star formation triggered by a merger between two large spiral galaxies (like the Milky Way and the Andromeda galaxy).
Last Update: 1 September 2019
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22-Nov-2024 00:24 UT

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