The interstellar medium interactions of a runaway luminous blue variable nebula in the large Magellanic Cloud

New observations of the Magellanic Cloud luminous blue variable candidate S 119 (HD 269687) show the relationship of the star to its environs. Echelle spectroscopy and high-resolution Hubble Space Telescope imagery reveal an e xpanding bubble centered on the star. This bubble appears in both H alpha a nd [N II] and is noticeably brighter on the near (blueshifted) side. The sy stemic velocity of both the expanding bubble and the star itself (as seen b y the very broad H alpha emission feature in the stellar spectrum) is V-hel similar to 160 km s(-1), whereas the velocity of the superposed LMC inters tellar medium (ISM) is 250-300 km s(-1). ISM absorption features seen in Fa r-Ultraviolet Spectroscopic Explorer spectra reveal components at both stel lar and LMC velocities. Thus, we conclude that S119 is located within the L MC ISM and that the bubble is interacting strongly with the ISM in a bow sh ock.