Open cluster NGC 2345 investigated in detail

phys.org | 9/18/2019 | Staff
n.king (Posted by) Level 3
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Finding chart of the core of NGC 2345. Image credit: Alonso-Santiago et al., 2019.

European astronomers have performed a comprehensive study of the young open cluster NGC 2345. The new research resulted in determining fundamental parameters of dozens of stars in the cluster and also unveiled the presence of new members. The findings are detailed in a paper published September 11 on arXiv.org.

Clusters - Cloud - Groups - Stars - Milky

Open clusters, formed from the same giant molecular cloud, are groups of stars loosely gravitationally bound to each other. So far, more than 1,000 of them have been discovered in the Milky Way, and scientists are still looking for more, hoping to find a variety of these stellar groupings. Expanding the list of known galactic open clusters and studying them in detail could be crucial for improving our understanding of the formation and evolution of our galaxy.

Recently, a group of astronomers led by Javier Alonso-Santiago of Catania Observatory in Italy, decided to take a closer look at NGC 2345—one of the known but poorly studied open clusters. It is a young cluster with low metallicity, located most likely some 10,000 light years away within the disc of the Milky Way galaxy. NGC 2345 is known for its relatively high fraction of Be stars, which makes it an interesting target for studying stellar evolution.

Team - Telescopes - NGC - Isaac - Newton

The team used various ground-based telescopes to investigate NGC 2345, including the 2.5-meter Isaac Newton Telescope (INT). They obtained spectra for 76 stars and high-resolution...
(Excerpt) Read more at: phys.org
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