We present a list of 75 isolated dwarf galaxies of later types which have no neighbors with a relative radial velocity difference of less than 500 km/s or projected distances of less than 500 kpc. These were selected from ~2000 dwarf galaxies with radial velocities V_(LG)<3500 km/s within the volume of the local supercluster. In terms of their sizes, luminosities, and the amplitudes of their internal motions, the isolated dwarf galaxies do not differ significantly from gas-rich dwarf galaxies in groups and clusters. However, the median mass of neutral hydrogen per unit luminosity for the isolated galaxies is a factor of two greater than for the galaxies of later types in groups. We have also identified 10 presumably isolated spheroidal dwarf galaxies. The discovery of isolated dwarf galaxies populated exclusively by old stars is of great interest for modern cosmological scenarios of galaxy formation.
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机译：我们列出了后来的75个孤立矮星系，它们之间没有相对星系，相对星系的相对径向速度差小于500 km / s，或者投影距离小于500 kpc。这些是从〜2000个矮星系中选出的，这些星系的径向速度V_（LG）<3500 km / s在局部超集群的体积之内。就其大小，亮度和内部运动的幅度而言，孤立的矮星系与富含气体的矮星系在群和星团中没有显着差异。但是，孤立星系每单位发光度的中性氢中值质量是较晚成组星系的中值氢大两倍。我们还确定了10个大概孤立的球状矮星系。发现仅由老恒星组成的孤立矮星系对现代现代的银河系宇宙学场景具有重大意义。
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