We present the first set of galaxy scaling relations derived from kinematic models of the Widefield Australian Square Kilometer Array Pathfinder (ASKAP) L-band Legacy All-sky Blind surveY (WALLABY) pilot phase observations. Combining the results of the first and second pilot data releases, there are 236 available kinematic models. We develop a framework for robustly measuring H i disk structural properties from these kinematic models, applicable to the full WALLABY survey. Utilizing this framework, we obtained the H i size, a measure of the rotational velocity, and angular momentum for 148 galaxies. These comprise the largest sample of galaxy properties from an untargeted, uniformly observed, and modeled H i survey to date. We study the neutral atomic hydrogen (H i) size–mass, size–velocity, mass–velocity, and angular momentum–mass scaling relations. We calculate the slope, intercept, and scatter for these scaling relations and find that they are similar to those obtained from other H i surveys. We also obtain stellar masses for 92 of the 148 robustly measured galaxies using multiband photometry through Dark Energy Sky Instrument Legacy Imaging Survey Data Release 10 images. We use a subset of 61 of these galaxies that have consistent optical and kinematic inclinations to examine the stellar and baryonic Tully–Fisher relations as well as the gas fraction–disk stability and gas fraction–baryonic mass relations. These measurements and relations demonstrate the unprecedented resource that WALLABY will represent for resolved galaxy scaling relations in H i.

中文翻译：

---

WALLABY Pilot Survey：来自边缘解析运动学模型的富气体星系缩放关系


我们提出了第一组星系缩放关系，这些关系源自宽场澳大利亚平方公里阵列探路者 （ASKAP） L 波段传统天空盲注 （WALLABY） 飞行员相位观测的运动学模型。结合第一次和第二次飞行员数据发布的结果，有 236 个可用的运动学模型。我们开发了一个框架，用于从这些运动学模型中稳健地测量 H i 盘结构特性，适用于完整的 WALLABY 调查。利用这个框架，我们获得了 H i 大小，这是 148 个星系的旋转速度和角动量的量度。这些星系构成了迄今为止来自无目标、统一观测和建模的 H i 巡天的最大星系特性样本。我们研究了中性氢原子 （H i） 大小-质量、大小-速度、质量-速度和角动量-质量缩放关系。我们计算了这些缩放关系的斜率、截距和散射，发现它们与从其他 H i 调查中获得的相似。我们还通过暗能量天空仪器遗产成像巡天数据版本 10 图像，使用多波段光度法获得了 148 个稳健测量星系中 92 个星系的恒星质量。我们使用其中 61 个星系的子集，这些星系具有一致的光学和运动学倾向，来研究恒星和重子 Tully-Fisher 关系，以及气体分数-盘稳定性和气体分数-重子质量关系。这些测量和关系表明，WALLABY 将为解决 H i 中的星系缩放关系提供前所未有的资源。