Composite all-sky N(HI) map derived from the Leiden/Dwingeloo survey and supplemented at southern declinations using the compilation of Dickey & Lockman. More...
This is an all-sky 1420 MHz (21cm) continuum map formed from surveys of the northern sky with the 25-m Stockert telescope
and the southern sky with the 30-m Villa-Elisa telescope. More...