Gemini time-resolved spectroscopy of the Na I doublet and the H-alpha line over 90 minutes
Gemini time-resolved spectroscopy of the Na I doublet (top) and the H-alpha line (bottom) over 90 minutes. The Na I lines and the H-alpha line from the M dwarf are stationary, whereas the H-alpha line from the WD clearly shows a 20 minute periodicity.
Credit:International Gemini Observatory/NOIRLab/NSF/AURA
About the Image
Id: | geminiann14006d |
Type: | Chart |
Release date: | June 16, 2014, 2:06 p.m. |
Related announcements: | geminiann14006 |
Size: | 500 x 714 px |
About the Object
Category: | Illustrations |