Deep Optical Images of the Ejecta Nebula Around the Wolf-Rayet Star WR 8 (HD 62910)

• DOI: 10.48550/arxiv.2502.08931
• Publication Date: 2025-02-12
• Authors: Robert A. Fesen; Daniel Patnaude; Wei-Hao Wang; You‐Hua Chu; Jason Sun; Manuel C. Peitsch; M. J. Pugh; Scott Garrod; Mark Selby; Alex Woronow
• Keywords: Wolf–Rayet star; Star (game theory)

We report the results of deep H-alpha and [O III] images bright WN7/WC4 Wolf-Rayet star WR 8 (HD 62910). These data show considerably more surrounding nebulosity than seen in prior imaging. The brighter portions nebula span 6' diameter exhibit considerable fine-scale structure including numerous emission clumps head-tail like features presumably due to effects star's stellar winds. Due overlap a relatively band unrelated foreground diffuse interstellar emission, 8's is best viewed via its emission. A faint 9' x 13' outer detected nebula's main ring optical substantially different from that thermal continuum dust WISE 22 micron infrared which smaller sharply defined shell.