Using 19,933 OB stars with 6D phase-space data from LAMOST and Gaia, the authors identify 67 OB associations and 112 candidates (49 and 107 new) and measure a flat rotation curve over 7-13 kpc.
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Identification of OB associations using the LAMOST-Gaia OB star sample
Using 19,933 OB stars with 6D phase-space data from LAMOST and Gaia, the authors identify 67 OB associations and 112 candidates (49 and 107 new) and measure a flat rotation curve over 7-13 kpc.