How peculiar is the "peculiar variable" DZ Crucis (Nova Cru 2003)?

Details How peculiar is the "peculiar variable" DZ Crucis (Nova Cru 2003)? How peculiar is the "peculiar variable" DZ Crucis (Nova Cru 2003)?

2008-01-31

arxiv.org/abs/0801.4934v1

Astronomy and Astrophysics

Astrophysics

6 pages, 4 figures. MNRAS in press

Scientific paper

10.1111/j.1365-2966.2008.13031.x

The variable star DZ Cru was thought to be a nova when it was discovered in eruption in 2003 August. This explanation was later challenged, however, when the first spectra of the object were reported. We present near infrared spectroscopy of DZ Cru obtained at the New Technology Telescope on 3 occasions, starting 1.5 years after outburst, with the aim of establishing the nature of the object. The spectra display H I, O I, [N I] emission lines, together with He I P Cygni lines superposed on a dust continuum. These observations suggest the "peculiar variable in Crux'' is a classical nova.

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