Discovery of New Faint Northern Galactic Planetary Nebulae
Solar and Stellar Astrophysics
2012-06-13 v1 Popular Physics
Abstract
We present the discovery of 6 nebular objects made by amateur astronomers. Four of these discoveries are clearly planetary nebulae (PNe), one is a possible PN, and another is a likely H II region. The bipolar nebula Ou4 presents the largest angular extent ever found : over one degree on the sky! We consider various scenarios that could explain such a nebula. Ou4 could be one of the nearest PNe known, though its possible PN nature will need confirmation.
Cite
@article{arxiv.1206.2477,
title = {Discovery of New Faint Northern Galactic Planetary Nebulae},
author = {Agnes Acker and Henri M. J. Boffin and Nicolas Outters and Brent Miszalski and Laurence Sabin and Pascal Le Du and Filipe Alves},
journal= {arXiv preprint arXiv:1206.2477},
year = {2012}
}
Comments
Accepted by Rev.Mex.AA; 18 pages,8 figures