Let $T \in \mathscr D'(\mathbb R^n)$ be a distribution, such that its Fourier transform $\widehat T$ is a real analytic function on $\mathbb R^n$ but it can't be continued to an entire function on $\mathbb C^n$. As an example of such $\widehat T$ we can take $$ \widehat T(\xi_1,\xi_2) = \frac{B(1+i\xi_1,1+i\xi_2)}{B(2+2i\xi_1,2+2i\xi_2)}, \quad (\xi_1,\xi_2) \in \mathbb R^2, $$ where $B$ is the Beta-function.
Are there some theorems that allow us to say whether some point $x \in \mathbb R^n$ is included in the support of $T$ or not, given $\widehat T$? If the answer is positive are there some theorems that allow us to find the distance (or estimate it below) between $x$ and the support of $T$? The Schwartz-Paley-Wiener theorem can't be applied here because $\widehat T$ can't be continued to an entire function. Any references are very welcome.
