Abundance anomalies in CP Crucis (Nova Crux 1996)

James E. Lyke, X. P. Koenig, M. J. Barlow, R. D. Gehrz, Charles E. Woodward, Sumner Starrfield, D. Péquignot, A. Evans, A. Salama, R. González-Riestra, Matthew A. Greenhouse, R. M. Hjellming, Terry J. Jones, Joachim Krautter, H. B. Öoglman, R. Mark Wagner, S. L. Lumsden, R. E. Williams

Research output: Contribution to journalArticle

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Abstract

We present spectroscopic observations of the classical nova CP Crucis (Nova Crux 1996) obtained with the Infrared Space Observatory Short Wavelength Spectrometer (ISO SWS) and the Anglo-Australian Telescope using both the Infrared Imaging Spectrograph and the Royal Greenwich Observatory Spectrograph. From the expansion parallax, we find that CP Crucis lies at a distance of 2.6 ± 0.5 kpc and reached a maximum My of - 8.7 at 0.96 days after discovery. We find abundance enhancements versus solar by mass of 75, 17, and 27 for N, O, and Ne, respectively. Additionally, we constrain the Mg abundance in the ejecta to be approximately solar. Abundance analysis suggests CP Crucis is an old Population I binary system. Combining the strong N and Ne abundances with the relatively low Mg abundance and a Ne/O ratio of 0.5, we propose that CP Crucis is an example of the "missing link" between CO and ONeMg novae.

Original languageEnglish (US)
Pages (from-to)993-1005
Number of pages13
JournalAstronomical Journal
Volume126
Issue number2 1772
DOIs
StatePublished - Aug 2003

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anomalies
anomaly
spectrographs
observatory
Infrared Space Observatory (ISO)
novae
parallax
ejecta
observatories
spectrometer
telescopes
spectrometers
wavelength
expansion
augmentation
wavelengths

Keywords

  • Circumstellar matter
  • Novae, cataclysmic variables
  • Stars: individual (Nova Crux 1996, CP Crucis)

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Lyke, J. E., Koenig, X. P., Barlow, M. J., Gehrz, R. D., Woodward, C. E., Starrfield, S., ... Williams, R. E. (2003). Abundance anomalies in CP Crucis (Nova Crux 1996). Astronomical Journal, 126(2 1772), 993-1005. https://doi.org/10.1086/376477

Abundance anomalies in CP Crucis (Nova Crux 1996). / Lyke, James E.; Koenig, X. P.; Barlow, M. J.; Gehrz, R. D.; Woodward, Charles E.; Starrfield, Sumner; Péquignot, D.; Evans, A.; Salama, A.; González-Riestra, R.; Greenhouse, Matthew A.; Hjellming, R. M.; Jones, Terry J.; Krautter, Joachim; Öoglman, H. B.; Mark Wagner, R.; Lumsden, S. L.; Williams, R. E.

In: Astronomical Journal, Vol. 126, No. 2 1772, 08.2003, p. 993-1005.

Research output: Contribution to journalArticle

Lyke, JE, Koenig, XP, Barlow, MJ, Gehrz, RD, Woodward, CE, Starrfield, S, Péquignot, D, Evans, A, Salama, A, González-Riestra, R, Greenhouse, MA, Hjellming, RM, Jones, TJ, Krautter, J, Öoglman, HB, Mark Wagner, R, Lumsden, SL & Williams, RE 2003, 'Abundance anomalies in CP Crucis (Nova Crux 1996)', Astronomical Journal, vol. 126, no. 2 1772, pp. 993-1005. https://doi.org/10.1086/376477
Lyke JE, Koenig XP, Barlow MJ, Gehrz RD, Woodward CE, Starrfield S et al. Abundance anomalies in CP Crucis (Nova Crux 1996). Astronomical Journal. 2003 Aug;126(2 1772):993-1005. https://doi.org/10.1086/376477
Lyke, James E. ; Koenig, X. P. ; Barlow, M. J. ; Gehrz, R. D. ; Woodward, Charles E. ; Starrfield, Sumner ; Péquignot, D. ; Evans, A. ; Salama, A. ; González-Riestra, R. ; Greenhouse, Matthew A. ; Hjellming, R. M. ; Jones, Terry J. ; Krautter, Joachim ; Öoglman, H. B. ; Mark Wagner, R. ; Lumsden, S. L. ; Williams, R. E. / Abundance anomalies in CP Crucis (Nova Crux 1996). In: Astronomical Journal. 2003 ; Vol. 126, No. 2 1772. pp. 993-1005.
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