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Origin of the IRAS Vela Shell: New Insights from 3D Dust Mapping

  • Authors: Bore Annie Gao, 般若 高, Catherine Zucker, Tirupati Kumara Sridharan, Cameren Swiggum, Shmuel Bialy, Theo J. O'Neill, J. E. G. Peek, Luciana Bianchi, Robert Benjamin, Lewis McCallum, Alyssa Goodman, João Alves, Charles Lada, Gordian Edenhofer, Rowan Smith, Elizabeth Watkins, Kenneth Wood, Doni Anderson

Bore Annie Gao et al 2025 The Astrophysical Journal 987 .

  • Provider: AAS Journals

Caption: Figure 1.

The Gum Nebula region as seen in different tracers. Left panel: Hα emission (D. P. Finkbeiner 2003). Middle panel: IRAS 60 μm emission (M. A. Miville-Deschênes & G. Lagache 2005), where the prominent ring-like structure is the IRAS Vela Shell (IVS). Right panel: projected 3D dust map from G. Edenhofer et al. (2024c; converted to Gaia G-band extinction) and integrated over the range of distances consistent with the IVS (d = 230−600 pc).

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