The Spitzer IRS Infrared Spectrum and Abundances of the Planetary Nebula IC 2448 - Guiles, S.; Bernard-Salas, J.; Pottasch, S. R.; Roellig, T. L. - The Astrophysical Journal, Volume 660, Issue 2, pp. 1282-1288 (2007).
New Rings in Planetary Nebulae Haloes - Corradi, R. L. M.; Sánchez-Blázquez, P.; Giammanco, C.; Mellema, G.; Schwarz, H. E. - Asymmetrical Planetary Nebulae III: Winds, Structure and the Thunderbird, Proceedings of the conference held 28 July - 1 August 2003 at Mt. Rainer, Washington, USA. Edited by Margaret Meixner, Joel H. Kastner, Bruce Balick and Noam Soker. ASP Conference Proceedings, Vol. 313. San Francisco: Astronomical Society of the Pacific, 2004., p.290 (2004).
Hubble Space Telescope Expansion Parallaxes of the Planetary Nebulae NGC 6578, NGC 6884, NGC 6891, and IC 2448 - Palen, Stacy; Balick, Bruce; Hajian, Arsen R.; Terzian, Yervant; Bond, Howard E.; Panagia, Nino - The Astronomical Journal, Volume 123, Issue 5, pp. 2666-2675 (2002). |