The Origin of Ionized Filaments Within the Orion-Eridanus Superbubble
Astrophysics of Galaxies
2014-05-07 v2
Abstract
The Orion-Eridanus superbubble, formed by the nearby Orion high mass star-forming region, contains multiple bright H filaments on the Eridanus side of the superbubble. We examine the implications of the H brightnesses and sizes of these filaments, the Eridanus filaments. We find that either the filaments must be highly elongated along the line of sight or they cannot be equilibrium structures illuminated solely by the Orion star-forming region. The Eridanus filaments may, instead, have formed when the Orion-Eridanus superbubble encountered and compressed a pre-existing, ionized gas cloud, such that the filaments are now out of equilibrium and slowly recombining.
Keywords
Cite
@article{arxiv.1404.1917,
title = {The Origin of Ionized Filaments Within the Orion-Eridanus Superbubble},
author = {Andy Pon and Doug Johnstone and John Bally and Carl Heiles},
journal= {arXiv preprint arXiv:1404.1917},
year = {2014}
}
Comments
11 pages, 2 figures, accepted by MNRAS, minor grammatical changes