CK Vul: A smorgasbord of hydrocarbons rules out a 1670 nova (and much else besides)

A. Evans, R. D. Gehrz, C. E. Woodward, P. J. Sarre, J. T. van Loon, L. A. Helton, Sumner Starrfield, S. P S Eyres

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

We present observations of CK Vul obtained with the Spitzer Space Telescope. The infrared spectrum reveals a warm dust continuum with nebular, molecular hydrogen and HCN lines su- perimposed, together with the 'Unidentified Infrared' features. The nebular lines are consistent with emission by a low-density gas. We conclude that the Spitzer data, combined with other information, are incompatible with CK Vul being a classical nova remnant in 'hibernation' after the event of 1670, a 'very late thermal pulse', a 'Luminous Red Variable', such as V838 Mon, or a 'diffusion-induced nova'. The true nature of CK Vul remains a mystery.

Original languageEnglish (US)
Article numberstw122
Pages (from-to)2871-2876
Number of pages6
JournalMonthly Notices of the Royal Astronomical Society
Volume457
Issue number3
DOIs
StatePublished - Apr 11 2016

Keywords

  • CK Vul - ISM
  • Circumstellar matter - stars
  • Individual
  • Molecules - infrared
  • stars

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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    Evans, A., Gehrz, R. D., Woodward, C. E., Sarre, P. J., van Loon, J. T., Helton, L. A., Starrfield, S., & Eyres, S. P. S. (2016). CK Vul: A smorgasbord of hydrocarbons rules out a 1670 nova (and much else besides). Monthly Notices of the Royal Astronomical Society, 457(3), 2871-2876. [stw122]. https://doi.org/10.1093/mnras/stw352