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The newest craze in the online e-book world is what are known as eBook libraries, or e-book packages. Using DECam, astronomers obtained images that not only cover the full extent of the two galaxies but also are more sensitive to faint stars than any previous wide-field optical survey of the Clouds. Hosted by the Zooniverse online citizen science platform, the Local Group Cluster Search asks volunteers to examine small portions of the SMASH images and identify star clusters by eye.

Citizen science searches are a great way to catalog clusters, even in today's age of machine learning and artificial intelligence, because the human brain is highly skilled at pattern recognition. Cliff Johnson, a postdoctoral fellow at Northwestern University who leads the citizen science project, said, "While computer-based methods continue to improve, the varying backgrounds and appearance of star clusters in images of nearby galaxies make cluster identification difficult to automate.

Algorithmic cluster searches have trouble eliminating false detections due to chance groupings of stars , while human-classified catalogs provide a reliable sample of clusters down to very faint brightness levels.

(PDF) Sprk of First Life Cosmic Bio-sigmnature | Dr. Chandra P Trivedi -

Volunteer-led star cluster identification has a proven track record of success. In the earlier "Andromeda Project," citizen scientists identified 2, star clusters in the Andromeda galaxy. The results revealed that cluster formation varies with galactic environment. Through the Local Group Cluster Search, citizen scientists also recently completed a study of the Triangulum galaxy, identifying thousands of star clusters. With cluster censuses of Andromeda and Triangulum complete, the search now turns to the Magellanic Clouds, the only nearby galaxies yet to be searched by citizen scientists.

What will the search reveal about the interaction history of our closest neighbors? Stay tuned!

Cosmic Dust

Join the search by visiting the project website at clustersearch. A blog post on the cluster search in the Triangulum galaxy is available here: clustersearch. More from Astronomy and Astrophysics. Please sign in to add a comment. Registration is free, and takes less than a minute. Read more. Your feedback will go directly to Science X editors. Thank you for taking your time to send in your valued opinion to Science X editors. You can be assured our editors closely monitor every feedback sent and will take appropriate actions. Your opinions are important to us. We do not guarantee individual replies due to extremely high volume of correspondence.

Sparks in Cosmic Dust

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March 27, A portrait of the night sky taken from Cerro Tololo Inter-American Observatory in Chile showing the Large and Small Magellanic Clouds upper and center left, respectively with the Blanco 4-m telescope lower right. Inset images zoom in on three star-forming regions in the Large Magellanic Cloud as seen in SMASH survey images, showing strong emission from hot gas that surrounds newborn young massive stars.

Star clusters span a wide range in size and brightness which vary depending on the age and mass of the cluster.

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Credit: L. A screenshot of the Local Group Cluster Search website interface, showing three star clusters correctly identified. When citizen scientists visit the project page, hosted by the Zooniverse, they are asked to mark the locations of star clusters on images. Explore further.

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