I study the VLA H I survey of H II galaxies by Taylor et al. and the VLA H I survey of low surface brightness (LSB) dwarf galaxies by Taylor et al. to investigate the role of galaxy interactions in triggering the bursts of massive star formation seen in H II galaxies. Comparing the two surveys, I find that H II galaxies have companions more than twice as often as LSB dwarfs (p = 0.57 for H II galaxies, compared to p = 0.24 for LSB dwarfs). I examine the completeness of the companion samples detected by the two surveys. For the companions to H II galaxies, the sample is likely complete in the distribution of velocity separations from their parent galaxies but is probably missing some companions at large projected linear separations because of the finite size of the VLA primary beam.
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机译:我研究了Taylor等人对H II星系的VLA H I调查。 Taylor等人的VLA H I对低表面亮度(LSB)矮星系的调查。调查星系相互作用在触发H II星系中看到的大规模恒星形成爆发中的作用。比较这两个调查,我发现H II星系的伴星是LSB矮星的两倍多(H II星系的p = 0.57,而LSB矮星的p = 0.24)。我检查了两次调查检测到的同伴样本的完整性。对于H II星系的伴星来说,样品与母星系的速度间隔分布可能很完整,但由于VLA主光束的大小有限,所以可能缺少一些大投影线性间隔的伴星。
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