Astronomers from National Astronomical Observatories of Chinese Academy of Sciences (NAOC), Shanghai Astronomical Observatory of CAS and Nanjing University have revealed the wobbly and flared nature of the Milky Way disk based on LAMOST-Gaia data, which updates our understanding about the galaxy.
The results were published in the Astronomical Journal.
The Milky Way is a typical disk galaxy. In the classical view of the Milky Way, the disk is symmetric and flat on the whole, like a pancake. Stars in the disk rotate around the galactic center, with mean radial and vertical velocities to be zero.
With the help of huge observational data provided by large survey projects in recent years, more and more details hidden in the Milky Way disk have become appar...
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