317 citations · 501 across the 6 of their papers we have counts for
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astro-ph2006★ 317 cited
The Expansion Asymmetry and Age of the Cassiopeia A Supernova Remnant
R. A. Fesen, M. C. Hammell, J. Morse +7
HST ACS images of the young SN remnant Cas A are used to explore the expansion and spatial distribution of its highest velocity debris. Proper motions of over 1800 outlying ejecta…
astro-ph2001★ 79 cited
Hubble Space Telescope WFPC-2 Imaging of Cassiopeia A
Robert A. Fesen, Jon A. Morse, Roger A. Chevalier +4
The young SNR Cassiopeia A was imaged with WFPC-2 through four filters selected to capture the complete velocity range of the remnant's main shell in several important emission lin…