Detection of TiH$_2$ molecule in the interstellar medium is less probable

TL;DR

This paper discusses the likelihood of detecting TiH$_2$ in the interstellar medium, concluding that despite its large electric dipole moment, its detection remains unlikely due to other factors.

Contribution

The study evaluates the probability of TiH$_2$ detection in the ISM, highlighting factors that reduce its observability despite favorable properties.

Findings

Detection of TiH$_2$ in the ISM is less probable.

TiH$_2$ has a large electric dipole moment.

The abundance of hydrogen influences detection likelihood.

Abstract

Identification of TiH$^1$ and TiO$^2$ has been historical, as the Titanium was first time discovered in the interstellar medium (ISM). After finding TiO$_2$$^3$, there is an obvious question about the search of titanium dihydride (TiH$_2$). The existence of TiH$_2$ in the ISM is quite probable, as the atomic abundance of hydrogen is about 1900 times larger than that of oxygen. We have discussed that the detection of TiH$_2$ in the ISM is less probable, though it has a large electric dipole moment.