Poster
J. M. Cannon, E. C. Herenz, G. Ostlin, A. Bik, J. Melinder, P. Papaderos, J. Puschnig, C. Koen
Abstract
We present new HI spectral line images of the nearby metal-poor galaxy pair SBS 0335-052E and SBS 0335-052W, acquired with the Karl G. Jansky Very Large Array (VLA). Located at a distance of 54 Mpc, both galaxies are strongly star-forming systems that host some of the lowest metallicity regions known. The extreme physical conditions of the SBS 0335-052 interacting system make it an important proxy for the star-forming galaxies that were present in the early universe. Prior VLA imaging has resolved the neutral hydrogen gas in each of the primary star-forming regions. The new HI images presented here offer an unprecedented view of the neutral interstellar medium at high angular resolution. Our observations confirm the existence of gaseous structures to the northeast of SBS 0335-052E, as well as the bridge of HI that connects each of the galaxies together. To first order, our results match the predictions of Herenz et al. (2017) in that we identify a lack of HI in the locations of some of the recently discovered ionized gas tails. This supports the interpretation that the ionized gas tails act as escape channels for Lyman continuum radiation.
233rd Meeting of the American Astronomical Society
Seattle, Estados Unidos da América
2019 January
