# What does Ae mean when used in a chemical formula? [closed]

In this video on slide 38 for example, the 35 minute mark, the formula appears

HAeBe


With the explaination "some chemestry has taken place..." and an infrared spectra.

What is Ae? I tried looking it up thinking it might be a common shorthand, but the only hits are answers that say "no, did you mean Al, Ag, etc.".

• I'm voting to close this question as off-topic because HAeBe is not a chemical substance, rather it is a star type. Oct 27 '15 at 11:42
• Gee, downvoting a months-old question that’s already closed? Pointless and not nice. Feb 1 '17 at 19:19