Researchers led by Dr. Shi Xiangdong and Professor Qian Shengbang from Yunnan Observatory
Massive stars usually refer to starsO- and B-types, which are characterized by high mass, temperature and luminosity. They are associated with many important objects and physical processes in the Universe—neutron stars, black holes, supernovae, and gravitational wave phenomena.
Slowly pulsating stars B (Slowlypulsating B (SPB) and βCephei pulsating stars (βCephei pulsating, BCEP) are the only two recognized classes of massive pulsating stars in the upper main sequence. However, due to limited observing conditions, astronomers have so far discovered only hundreds of such objects.
The authors of the new study found 155pulsating stars or OB-type candidates, including 38 Oe/Be stars. Of the 155 objects, 87 are identified as SPB stars, 14 as BCEP stars, 52 as candidates, and two as partial objects with properties of both SPB and BCEP stars.
Their discovery is very important for understanding theories of the evolution and structure of massive pulsating stars and reveals the potential for their use as standard “beacons” for measuring distances.
Read more:
Found a way to lower blood sugar without insulin injections
Scientists believe that the shape of the universe is not what everyone thinks
NASA helicopter showed sunset on Mars. It doesn't look like earth.
Source: ESO/L Calçada