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We present the results of a VLA and OVRO-MMA follow-up to our single-dishsurveys of the neutral atomic and molecular gas in a sample of nearby LuminousCompact Blue Galaxies (LCBGs). These luminous, blue, high surface brightness,starbursting galaxies were selected using criteria similar to that used todefine LCBGs at higher redshifts. The surveys were undertaken to study thenature and evolutionary possibilities of LCBGs, using dynamical masses and gasdepletion time scales as constraints. Here we present nearly resolved VLA H Imaps of four LCBGs, as well as results from the literature for a fifth LCBG. Inaddition, we present OVRO-MMA maps of CO(J=1-0) in two of these LCBGs. We haveused the resolved H I maps to separate the H I emission from target galaxiesand their companions to improve the accuracy of our gas and dynamical massestimates. For this sub-sample of LCBGs, we find that the dynamical massesmeasured with the single-dish telescope and interferometer are in agreement.However, we find that we have overestimated the mass of H I in two galaxies bya significant amount, possibly as much as 75%, when compared to the single-dishestimates. These two galaxies have companions within a few arc minutes; we findthat our single-dish and interferometric measurements of H I masses are inreasonable agreement for galaxies with more distant companions. The H Ivelocity fields indicate that all five galaxies are clearly rotating yetdistorted, likely due to recent interactions. Our measurements of the gas anddynamical masses of LCBGs point towards evolution into low mass galaxies suchas dwarf ellipticals, irregulars, and low mass spirals, consistent with studiesof LCBGs at higher redshifts.

astrophysical journal/the astrophysical journal

The Nature of Nearby Counterparts to Intermediate-Redshift Luminous  Compact Blue Galaxies. III. Interferometric Observations of Neutral Atomic  and Molecular Gas