'Cometary' Globules and the Structure of the Gum Nebula

• DOI: 10.1093/mnras/175.1.19p
• Publication Date: 2014-07-20T10:57:06Z
• Authors: T. G. Hawarden; P. W. J. L. Brand
• Keywords: Galactic plane; Vela

Tailed, comet-like objects found in the outskirts of Gum nebula (and elsewhere) are shown to be |$\gt\,{10}^{5}$| yr old. This implies that H II region is much older than Vela Pulsar 0833 – 45. Tailed structure NGC 5367 suggests presence ionized hydrogen falling into galactic plane near l = 320°.