Morpho-kinematical modelling of Nova Eridani 2009 (KT Eri)

V. A.R.M. Ribeiro, M. F. Bode, M. J. Darnley, R. M. Barnsley, U. Munari, D. J. Harman

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

Modelling the morphology of a nova outburst provides valuable information on the shaping mechanism in operation at early stages following the outburst. We performed morpho-kinematical studies, using SHAPE, of the evolution of the Ha line profile following the outburst of the nova KT Eridani. We applied a series of geometries in order to determine the morphology of the system. The best-fitting morphology was that of a dumbbell structure with a ratio between the major to minor axis of 4:1, with an inclination angle of 58 -7+6 deg and a maximum expansion velocity of 2800 ± 200 km s-1. Although, we found that it is possible to define the overall structure of the system, the radial density profile of the ejecta is much more difficult to disentangle. Furthermore, morphology implied here may also be consistent with the presence of an evolved secondary as suggested by various authors.

Original languageEnglish
Pages (from-to)1991-1996
Number of pages6
JournalMonthly Notices of the Royal Astronomical Society
Volume433
Issue number3
DOIs
Publication statusPublished - Jan 1 2013

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

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