Interferometric observations of V1663 Aquilae (nova AQL 2005)

B. F. Lane, A. Retter, J. A. Eisner, M. W. Muterspaugh, R. R. Thompson, J. L. Sokoloski

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


We have resolved the classical nova V1663 Aql using long-baseline near-IR interferometry covering the period from ∼5 to 18 days after peak brightness. We directly measure the shape and size of the fireball, which we find to be asymmetric. In addition, we measure an apparent expansion rate of 0.21 ± 0.03 mas day-1. Assuming a linear expansion model, we infer a time of initial outburst approximately 4 days prior to peak brightness. When combined with published spectroscopic expansion velocities, our angular expansion rate implies a distance of 8.9 ± 3.6 kpc. This distance measurement is independent of, but consistent with, determinations made using widely available photometric relations for novae.

Original languageEnglish (US)
Pages (from-to)1150-1155
Number of pages6
JournalAstrophysical Journal
Issue number2
StatePublished - Nov 10 2007


  • Cataclysmic variables
  • Novae
  • Stars: individual (V1663 Aquilae)
  • Techniques: interferometric

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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