Image Details

Choose export citation format:

Stellar Proper Motions in the Orion Nebula Cluster

  • Authors: Dongwon Kim, Jessica R. Lu, Quinn Konopacky, Laurie Chu, Elizabeth Toller, Jay Anderson, Christopher A. Theissen, and Mark R. Morris

2019 The Astronomical Journal 157 109.

  • Provider: AAS Journals

Caption: Figure 4.

The PM vectors from Gaia DR2 (red) and this study using HST + Keck (HK; blue) show good agreement. In this figure, the bulk motion of the ONC inferred from the median values of the difference between the absolute and relative PMs (﹩\widetilde{{\rm{\Delta }}{\mu }_{{\alpha }^{* }}}﹩, ﹩\widetilde{{\rm{\Delta }}{\mu }_{\delta }}﹩) = (1.6, 0.6) mas yr−1 was subtracted from those from Gaia DR2 (see Figure 3). Gray dots illustrate the positions of all stars in our sample.

Other Images in This Article
Copyright and Terms & Conditions

Additional terms of reuse