Is NGC 5824 the Core of the Progenitor of the Cetus Stream?

24 Oct 2020 Chang Jiang NAOC/PMO Yuan Zhen CNRS/SHAO Xue Xiang-Xiang NAOC Simion Iulia T. SHAO Kang Xi PMO/ZJU Li Ting S. Carnegie/Princeton Zhao Jing-Kun NAOC Zhao Gang NAOC

A large number of new members ($\sim$150) of the Cetus Stream (CS) were identified from their clustering features in dynamical space using 6D kinematic data by combining LAMOST DR5 and Gaia DR2 surveys. They map a diffuse structure that extends over at least 100 degrees in the northern and southern Galactic hemispheres, at heliocentric distances between 20 to 50 kpc... (read more)

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