The peculiar dust shell of Nova DZ Cru (2003)

A. Evans, R. D. Gehrz, C. E. Woodward, L. A. Helton, M. T. Rushton, M. F. Bode, J. Krautter, J. Lyke, D. K. Lynch, J. U. Ness, S. Starrfield, J. W. Truran, R. M. Wagner

Research output: Contribution to journalLetterpeer-review

10 Scopus citations

Abstract

We present Spitzer Space Telescope observations of the 'peculiar variable' DZ Cru, identified by Rushton et al. as a classical nova. A dust shell, on which are superimposed a number of features, is prominent in the 5-35 μm range some 4 yr after eruption. We suggest that the dust in DZ Cru is primarily hydrogenated amorphous carbon in which aliphatic bands currently predominate and which may become either predominantly aromatic as the dust is photoprocessed by ultraviolet radiation from the stellar remnant or more likely completely destroyed.

Original languageEnglish (US)
Pages (from-to)L85-L89
JournalMonthly Notices of the Royal Astronomical Society: Letters
Volume406
Issue number1
DOIs
StatePublished - Jul 2010

Keywords

  • Circumstellar matter
  • Novae, cataclysmic variables
  • Stars: individual: DZ Cru

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