Evolution of V339 Del (Nova Del 2013) since 0.37 to 75 Days after Discovery

TL;DR

This study analyzes the spectral evolution of Nova V339 Del over 75 days post-discovery, identifying seven distinct phases in its light curve and spectral properties using telescope data.

Contribution

It provides a detailed phase-based model of V339 Del's evolution, linking spectral features to specific stages of the nova's development.

Findings

Seven distinct evolutionary phases identified

Spectral velocities and radiation levels characterized

Light curve explained by ideal nova model

Abstract

We study the evolution of V339 Del (Nova Del 2013) during 0.37 to 75 days after discovery. Spectra from the Liverpool Telescope were collected and analysed to find velocity of ejecta, relative radiation with respect to continuum level, and FWHM of the radiation. The evolution of light curve was explained by adopting an ideal nova light curve as criteria. We found that the evolution of V339 Del during t = 0.37 to 75 days can be explained in 7 phases: 1) Initial rise (t = 0 - 0.6 days, 2) Pre-maximum halt (t = 0.6 to 1.2 days), 3) Final rise (t = 1.2 to 1.5 days), 4) Maximum (t = 1.5 to 2.5 days), 5) Early decline (t = 2.5 to 35 days), 6) Transition (t = 35 to 60 days), and 7) Final decline (t = 60 to approximately 75 days).