论文标题
小东西矮星系的星际介质中的孔和贝壳目录
A Catalog of Holes and Shells in the Interstellar Medium of the LITTLE THINGS Dwarf Galaxies
论文作者
论文摘要
我们在小东西中呈现了41个气体富含气体的矮星系中中性原子氢（\ hi）中的孔和壳目录（轨迹极端的局部不规则，\ hi附近的星系调查）。我们分析了它们的特性，作为研究恒星形成与结构与运动学之间的关系的一部分。我们确认了38个PC（分辨率限制）和2.3 kpc之间的306个孔，膨胀速度高达30 \ kms。通过\ ha和fuv发射测量的全球恒星形成率与从我们的样品中创建分类孔所需的能量估计的速率一致。尽管我们发现全局恒星形成速率与样品的\ hi表面和体积孔隙率之间没有明显的相关性，但是四个最低的孔隙度星系中的两个和两个最高的孔隙度星系在\ ha和fuv发射时没有最近的恒星形成。
We present a catalog of holes and shells in the neutral atomic hydrogen (\HI) of 41 gas-rich dwarf galaxies in LITTLE THINGS (Local Irregulars That Trace Luminosity Extremes, The \HI Nearby Galaxy Survey). We analyzed their properties as part of an investigation into the relation between star formation and structures and kinematics in the \HI of small galaxies. We confirmed 306 holes between 38 pc (our resolution limit) and 2.3 kpc, with expansion velocities up to 30 \kms. The global star formation rates measured by \Ha and FUV emission are consistent with those estimated from the energy required to create the cataloged holes in our sample. Although we found no obvious correlation between global star-formation rates and the \HI surface and volume porosities of our sample, two of the four lowest porosity galaxies and the two highest porosity galaxies have no recent star formation as measured by \Ha and FUV emission.
