Classical and Recurrent Nova Outbursts

TL;DR

This paper reviews the current understanding of Classical and Recurrent Novae, their mechanisms, sub-types, and potential links to Type Ia Supernovae, highlighting recent observations and open research questions.

Contribution

It provides a comprehensive overview of nova phenomena, emphasizing recent observational and theoretical advances, especially regarding the Recurrent Nova RS Ophiuchi's 2006 outburst.

Findings

Enhanced understanding of nova outburst mechanisms

Detailed analysis of RS Ophiuchi's 2006 event

Identification of open questions for future research

Abstract

Over the last 40 years, multi-frequency observations, coupled with advances in theoretical modelling, have led to a much fuller understanding of the nova phenomenon. Here I give a brief review of the current state of knowledge of Classical and Recurrent Novae including their central systems; the causes and consequences of their outbursts; sub-types, and possible relationships to Type Ia Supernovae. Particular attention is paid to the Recurrent Nova RS Ophiuchi as it shows a wealth of phenomena associated with its 2006 outburst. Finally, some open questions and avenues for future work are summarised.