CK Vul: a smorgasbord of hydrocarbons rules out a 1670 nova (and much else besides)
arXiv:1512.02146 · doi:10.1093/mnras/stw352
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 superimposed, together with the "Unidentified Infrared" (UIR) 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.
MNRAS letters, in press. Paper consists of 6 pages, 4 figures, 2 tables
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Cited by in corpus (10)
- Astronomical detection of a radioactive molecule 26AlF in a remnant of an ancient explosion
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- Molecular remnant of Nova 1670 (CK Vulpeculae). II. A three-dimensional view on the gas distribution and velocity field
- Molecular remnant of Nova 1670 (CK Vulpeculae): I. Properties and enigmatic origin of the gas
- Infrared spectroscopy of CK Vulpeculae: revealing a remarkably powerful blast from the past
- ALMA reveals the aftermath of a white dwarf--brown dwarf merger in CK Vulpeculae
- V445 Puppis -- Dustier than a Thousand Novae
- Elemental abundances in the remnant of the ancient eruption of CK Vulpeculae
- Is the nitrogen-rich source PN K4-47 a true planetary nebula?
- Was there a (super)nova in 1408?