Near-infrared spectra and optical to near-infrared photometry
Near-infrared spectra (purple) and optical to near-infrared photometry(blue) of the nine "dead" galaxies. These galaxies show no Hα emissionline, which indicates that their star formation rates are extremely low. The upper panel shows the original spectra (see paper for more details).
Credit:International Gemini Observatory/NOIRLab/NSF/AURA
About the Image
Id: | geminiann06017a |
Type: | Chart |
Release date: | Sept. 20, 2006, 3:10 p.m. |
Related announcements: | geminiann06017 |
Size: | 600 x 577 px |
About the Object
Category: | Stars |