The HI Distribution Observed toward a Halo Region of the Milky Way

Abstract

We use observations of the neutral atomic hydrogen (HI) 21-cm emission line to study the spatial distribution of the HI gas in a 80$°\times$90$°$ region of the Galaxy halo. The HI column densities in the range of \mbox{3--11$\times$10${}^{20}$ cm${}^{-2}$} have been estimated for some of the studied regions. In our map---obtained with a spectral sensitivity of $\sim$2 K---we do not detect any HI 21-cm emission line {above 2$\sigma$} at Galactic latitudes higher than $\sim${46}$°$. {This report summarizes our contribution presented at the conference on the origin and evolution of barionic Galaxy halos}.

References in corpus (1)

• HI4PI: A full-sky HI survey based on EBHIS and GASS