Are OH molecules in masers ionized?

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SUMMARY

OH molecules in astrophysical masers, particularly in interstellar regions, are neutral hydroxyl radicals rather than ionized species. The notation typically omits the "-" superscript, indicating that these molecules are not anions. Research confirms that hydroxyl ions are predominantly found in solution and not in the ultra-low density molecular clouds characteristic of astronomical environments. Therefore, the presence of ionized OH in masers is not supported by current scientific understanding.

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TheCanadian
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It seems like a very basic question. I've read about OH molecules in the context of astrophysical masers and perhaps it is already known, but the notation always omits the "-" superscript to denote the molecule as being an ionized one (i.e. an anion). Just to clarify, are OH molecules in masers such as those found in interstellar regions actually ionized?
 
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And if you compare to the much shorter article on the hydroxyl ion, https://en.wikipedia.org/wiki/Hydroxyl_ion_absorption, you see the contexts are much more limited. It seems that you mostly only get the hydroxyl ion in solution, rather than in the ultra-low density molecular clouds you find in astronomy.
 
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