Accretion Disk Surrounds Young Star

https://phys.org/news/2017-04-image-accretion-disk-young-star.html

In a recent article, written by Bob Yirka, the article discusses how a team of researchers were able to capture the first ever clear image of a young star surrounded by an accretion disk. Astrophysics were able to learn that accretion disks form from young stars that act as food to help the young star grow bigger. The accretion disk is a disk of gas, silicate, iron, and other elements that stayed around the star after it made the transition from protostar to main sequence. Due to this study, we will be able to get more information on the formation of stars, and filtering star systems while searching for signs of life beyond our planet.

I can relate this article to conceptual objective 13 because the article discusses the first clear picture of a young star, which relates to star lifetimes and formation. When a cool cloud of complex molecules begin to cave in on itself, molecules overpower the gravitational pull of the molecules near them, the loose molecules put pressure on one another which causes them to warm up and create a clump of gas that will become a new star, called a protostar. The protostar continues to attract dust around it until it collects enough pressure to get hydrogen fusion to take place.

In our lecture tutorial book, you will see on pages 119-120 information on star formation and lifetimes. Stars begin life as a cloud of gas and dust, the birth of the star begins when a shock wave from a supernova triggers the cloud of gas and dust to collapse inward.

I enjoyed the class material because it was fun information to learn in class since i had never learned anything about this topic before. I also enjoyed the article because due to this study they will be able to learn much more information on this topic.

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