BEACON TRANSCRIPT – Using the Hubble Telescope, a team of astronomers has uncovered several new fact about globular clusters, star conglomerates which are capable of producing new stars. According to their observation, the globular clusters siphon gas to create new stars.
Although we have come a long in way in discovering how the Universe works, there are a lot of things we can learn from galactic formations. A recent study, published in the Nature journal, has revealed that globular clusters, massive star groups, are capable of drawing gas from nearby galaxies in order to create new stars. Indeed, globular clusters can be regarded as the Universe’s manufacturing plant.
The scientist behind this bold project based their theory on the observation of several globular clusters, located in the Small and the Large Magellanic Cloud, two galaxies which are situated very close to the Milky Way.
Richard de Grijs, the lead author or the study, from the University of Peking, declared that this is an entirely new approach. He also stressed out that the latest observation proved that globular clusters are much older and complex than anticipated.
According to the literature on the matter, globular star clusters are very star formations. Basically, all the gravity-bound stars, form a spherical shape. The group is very compact and it is formed from millions of stars. Moreover, it would seem that all the stars in the globular cluster have roughly the same age.
However, during their observation of older clusters, the scientists found out an age-related discrepancy. While most the stars in the galactic clusters were nearly 10 billion years old, some of the stars appeared to be younger by comparison. In order to determine a star’s age, the scientists analyze the celestial body’s brightness.
According to their study, the age-related discrepancy might be an indicator that the cluster is actually capable of creating new stars. However, even this massive manufacturing plant has its boundaries. De Grijs, along with his colleagues, agrees that stars which turn supernova are capable of blowing out the gas reserve of a globular cluster.
After this happens, the globular cluster will be unable to create new stars due to a lack of gas. According to their recent observation, the next sensible solution for the gas shortage is to seek out other fuel sources. And so, the massive star cluster turns to galaxies in order to acquire the much-needed fuel, vital for star creation.
A team of astronomers discovered that globular clusters siphon gas to create new stars. And it seems that they use nearby galaxies to harvest the required primordial gas.