HIFI spectrum of DR21
Date: 26 November 2009
Copyright: ESA and the HIFI consortium
This is one of the early spectra obtained with the HIFI instrument on Herschel. This HIFI spectrum of a massive star-forming region reveals the fingerprints of a number of key organic molecules, such as formaldehyde (H2CO), carbon sulphide (CS), the formyl ion (HCO+), the ethynyl radical (C2H), and the methyladyne radical (CH).
Last Update: 1 September 2019