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Proper Motion of Dense Circumstellar Knots in the Supernova Remnant Cassiopeia A

  • Authors: Bon-Chul Koo, Sang Bum Ko, Christopher F. McKee, Carl Heiles, Robert A. Fesen, Ji Yeon Seok, Hyun-Jeong Kim, Sung-Chul Yoon

Bon-Chul Koo et al 2025 The Astrophysical Journal Supplement Series 280 .

  • Provider: AAS Journals

Caption: Figure 5.

(a) R.A. component of the proper motion of QSFs vs. their projected distance from the expansion center along R.A. The solid line represents the least-squares fit. (b) Same as (a), but for the decl. component of the proper motion. Blue symbols indicate Group 1 QSFs, while magenta symbols represent Group 2 QSFs.

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