Review of light curves of novae in the modified scales. III. V1047 Cen at 2019

TL;DR

This paper analyzes the light curves of Nova V1047 Cen in 2019, comparing it with other novae, and discusses its classification and activity, providing insights into post-nova behavior and re-brightening phenomena.

Contribution

It offers a detailed analysis of V1047 Cen's 2019 light curve and proposes a corrected identification for Nova Sgr 1970, enhancing understanding of nova classifications.

Findings

V1047 Cen's 2019 re-brightening linked to post-nova activity

Light curve similarities with HR Del and Nova Del 1967

Proposed correction for Nova Sgr 1970 classification

Abstract

Unique Nova Centauri 2005, V1047 Cen, by a form of the modified light curve was included into the CP Pup group. It means that the re-brightening in 2019 occurred still during the finishal stage of the 2005 outburst and can be connected with the current activity of the post-nova. The light curve of V1047 Cen in 2019 as a separate event is some details similar to the HR Del, Nova Del 1967, and also it is distinguish considerable from dwarf nova outbursts in post-nova systems (GK Per, etc.). There is proposed possible correct identification of Nova Sgr 1970, V3645 Sgr, which was included into the RR Pic group.