Using the Magellan Clay Telescope, astronomers have performed a spectroscopic study of blue straggler stars in the globular ...

main-sequence stars are powered by the fusion of hydrogen into helium in their cores. Blue stragglers were found in this way in the 1950s, for example in the globular cluster M 3 (ref. 3).

Blue stragglers are stars in a cluster that are very bright and very blue but stubbornly persist on the main sequence. Unlike their more well-behaved siblings, they burn hydrogen long after they ...

(Phys.org) —This pretty sprinkling of bright blue stars is the ... one or two yellow or red stars which have already evolved to become red giants. Open star clusters like this usually only ...

These are hot, blue stars that are still in the main sequence even though they're located in star clusters that we know to be very old. The most likely explanation is that blue stragglers are old ...

More information: Steffani M. Grondin et al, The First Catalog of Candidate White Dwarf–Main-sequence Binaries in Open Star Clusters: A New Window into Common Envelope Evolution, The ...

Drawing a diagonal line across this diagram marks the main sequence. This is where stars spend the majority of their lives, fusing hydrogen in their cores. As the cluster ages, the massive ...

blue, main sequence stars, and the remaining distribution of star colors is noticeably redder than that found in open clusters in the spiral arms. These clusters came into existence while rest of ...

Once, those faint stars ... blue-white main sequence star. Like many similar red supergiants, KQ fluctuates slightly in brightness, causing the overall magnitude to change between 4.82 and 5.17 ...

Astronomers have discovered the first pairs of white dwarf and main sequence ... the stars in these clusters are thought to have all formed at the same time, finding these binaries in open star ...