NGC 3034 (M 82)

is a typical and probably the most well-known starburst galaxy and has been extensively studied in nearly all wavelength ranges. Although M 82 is classified as a dwarf irregular galaxy, it is very similar to many of the starburst galaxies discussed here, in particular NGC 1808. High-resolution observations by Kronberg, Bierman & Schwab (1985) show that the continuum emission is concentrated into a large number of compact sources, identified as very young supernova remnants. A cylindrical outflow of dense molecular clouds and ionized gas has been observed, ejected from the disk into the halo at several hundred kms^-1 (Nakai et al. 1987; Bland & Tully 1988). HI absorption lines shifting over the continuum source(s) clearly indicate a fast-rotating nuclear ring (Weliachew, Fomalont & Greisen 1984; Yun 1992). Telesco et al. (1991) report the detection of a bar $\sim$1 kpc long; the nuclear ring (radius $\sim$ 300 pc) lies roughly between the ILR(s) which are found at 40 and 600 pc.