Small galaxies may only give birth to small stars

 作者:侴墼弱     |      日期:2019-03-07 08:12:04
IT’S as if small towns could only produce small people: dwarf galaxies may not be able to produce many large stars. Our Milky Way, a giant barred spiral galaxy, creates stars both large and small, and astronomers had assumed other galaxies did the same. But a new study of Fornax, a dwarf galaxy orbiting our own, suggests that might not be true. Stars of different masses create different chemical elements. Barium tends to form in stars too puny to explode,