Document Type

Honors Project On-Campus Access Only


We present Very Large Array and Giant Metrewave Radio Telescope HI observations of Leo P, a low-mass star-forming dwarf galaxy discovered by the ALFALFA survey. This low-mass (MHI = 9.5 × 105 Solar masses) system has a nebular oxygen abundance of 3% Solar, making it among the most metal-deficient galaxies and a benchmark for models of galaxy evolution. Leo P’s proximity (d = 1.75 Mpc) allows our HI imaging to probe spatial scales of 160 pc at 1.8 kms−1 velocity resolution. We present morphological and dynamical analysis that offers one of the most complete views of the interstellar medium in an extremely lowmass dwarf galaxy to date.



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