Infrared Photometry and Spectroscopy of Nova Pw-Vulpecuale

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

We present near-infrared photometry and spectroscopy of the slow nova PW Vul (Nova Vul 1984 No. 1) prior to its dust-formation phase. In common with the visual light curve, the near-infrared light curves varied extremely erratically during the first 100 d after maximum. Emission lines of C and N were prominent in the near-infrared spectra, as would be expected from the thermonuclear-runaway model of the nova outburst, but He I lines were weak. A distance of 3 kpc is consistent with a number of independent distance indicators.

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