12/10/2023 0 Comments Spiral galaxy near milky wayThe gas will start to form stars once gravitational collapse is initiated. In addition, there is a massive reservoir of dense molecular gas, mainly in the form of molecular hydrogen (H2), which is the raw material for star formation. The supermassive black hole Sagittarius A*, which sits at the very center of the Milky Way, is the most well-known object in the region. The central region of the Milky Way, known as the Galactic Center, is about 26,000 light-years away from Earth and serves as a unique and important star-forming environment. ![]() Therefore, understanding the formation of massive stars is of great importance. These massive stars are far more luminous than the Sun, with intrinsic luminosities up to several hundreds of thousands of times the solar value, which strongly impact the environment of the entire galaxy. Accretion disks surrounding solar-like, low-mass protostars have been extensively studied in the last few decades, leading to a wealth of observational and theoretical achievements.įor massive protostars like the one observed in the study, especially early O-type ones of more than 30 solar masses, it is still unclear whether and how accretion disks play a role in their formation. In this sense, they are stellar cradles where stars are born and raised. The disk may have been disturbed by a close encounter with a flyby object, thus leading to the formation of the spiral arms, the team writes in a recent paper in Nature Astronomy.Īccretion disks around young stars, or protostars - also known as 'protostellar disks' - are essential components in star formation because they continuously feed growing stars gas from the surrounding environment. Cambridge, MA – An international research team from China, the U.S., and Germany, including Qizhou Zhang at the Center for Astrophysics | Harvard & Smithsonian, has used the ALMA Observatory and discovered an accretion disk with two spiral arms surrounding a young star near the center of the Milky Way galaxy.
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