The glyph is a canonical composition of the glyphs Glyph for U+0041Latin Capital Letter A, Glyph for U+0302Combining Circumflex Accent. It has no designated width in East Asian texts. In bidirectional text it is written from left to right. When changing direction it is not mirrored. The word that U+00C2 forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
Â, â (a-circumflex) is a letter of the Inari Sami, Skolt Sami, Romanian, Vietnamese and Mizo alphabets. This letter also appears in French, Friulian, Frisian, Portuguese, Turkish, Walloon, and Welsh languages as a variant of the letter "a". It is included in some romanization systems for Khmer, Persian, Balinese, Sasak, Russian, and Ukrainian.