OD absorption spectrum over a three-color image of W49A with a plus sign on spectrum position
Deuterated Hydroxyl as a Star Formation Tracer
Date

The two-component OD absorption spectrum from GREAT superposed on a three-color image of W49A; SOFIA-FORCAST 20 μm (blue), SOFIA-FORCAST 37 μm (green), and Herschel-PACS 70 μm (red). Stars are from Spitzer-IRAC 3.6 μm (white). The plus sign marks the position of the spectrum.

Credit
De Buizer et al. 2021/SOFIA/Herschel/ESO/Csengeri et al. 2022
Image Number
SCI2022_0011