Stellar tracers yield homogeneous 3D kinematics for 15 nearby molecular clouds, with YSOs and open clusters agreeing to a median 2 km/s offset and evidence of 5-sigma expansion in Orion and Ophiuchus.
(2021) used theGaiaastrometry of 403 OB stars, disk-bearing YSOs, and X-ray sources to trace the proper motion of NGC
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A homogeneous three-dimensional view of Molecular Cloud kinematics out to 2.5 kpc. Using Young Stellar Objects and Open Clusters as complementary tracers
Stellar tracers yield homogeneous 3D kinematics for 15 nearby molecular clouds, with YSOs and open clusters agreeing to a median 2 km/s offset and evidence of 5-sigma expansion in Orion and Ophiuchus.