HI气体质量、恒星质量与HICAT + WISE（HI-WISE）半导体星系恒星形成率的关系
Relationships between HI Gas Mass, Stellar Mass and Star Formation Rate of HICAT+WISE (HI-WISE) Galaxies
摘要：
利用HI-Parkes全天巡天星表（HICAT）和宽视场红外巡天探测器（WISE）测量了HI质量、恒星质量和恒星形成率之间的关系。在3,513个HICAT源中，我们为2,896个源（80%）找到了3.4微米的对应物，并为这些星系提供了新的WISE匹配孔径测光。对于我们的主要样本的螺旋星系与W1 $\le$ 10等和z $\le$ 0.01，我们确定HI检测的93%的样本。我们测量较低的HI-恒星质量的关系，HI选择的样本，不包括螺旋星系与HI气体少。我们对螺旋样品的观测表明，HI质量随着恒星质量的增加而增加，幂律指数为0.35;然而，这个值取决于T型，这会影响HI质量的中值和色散。我们还观察到HI气体分数的上限，这是一致的晕自旋参数模型。我们测量的螺旋星系的恒星形成效率是恒定的10 $^{-9.57}$年$^{-1}$ $\pm$ 0.4德克斯为2.5个数量级的恒星质量，尽管更高的恒星质量螺旋显示淬火恒星形成的证据。
英文摘要：
We have measured the relationships between HI mass, stellar mass and star formation rate using the HI Parkes All Sky-Survey Catalogue (HICAT) and the Wide-field Infrared Survey Explorer (WISE). Of the 3,513 HICAT sources, we find 3.4 micron counterparts for 2,896 sources (80%) and provide new WISE matched aperture photometry for these galaxies. For our principal sample of spiral galaxies with W1 $\le$ 10 mag and z $\le$ 0.01, we identify HI detections for 93% of the sample. We measure lower HI-stellar mass relationships that HI selected samples that do not include spiral galaxies with little HI gas. Our observations of the spiral sample show that HI mass increases with stellar mass with a power-law index 0.35; however, this value is dependent on T-type, which affects both the median and the dispersion of HI mass. We also observe an upper limit on the HI gas fraction, which is consistent with a halo spin parameter model. We measure the star formation efficiency of spiral galaxies to be constant 10$^{-9.57}$ yr$^{-1}$ $\pm$ 0.4 dex for 2.5 orders of magnitude in stellar mass, despite the higher stellar mass spiral showing evidence of quenched star formation.
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