Morpho-kinematic Modeling of Nova Ejecta

TL;DR

This paper discusses morpho-kinematic modeling of nova ejecta, a technique that helps determine the shape, velocity, and orientation of ejected shells, and predicts eclipses to infer system parameters.

Contribution

It introduces the application of morpho-kinematic modeling to novae for detailed system parameter estimation and eclipse prediction.

Findings

Determines maximum expansion velocity of nova ejecta.

Identifies inclination angles and shell morphology.

Predicts eclipses to constrain system parameters.

Abstract

Morpho-kinematic modeling allows us to disentangle the morphology and kinematics of an object. The technique has been applied to a number of novae where resolved imaging, or lack of, and spectroscopic line profile fitting, show how we may retrieve important parameters of the system, such as the maximum expansion velocity, inclination angle and the morphology of the ejected shell. Furthermore, this technique may be used as a predictor for searches of eclipses which will then provide us further information on the system parameters, such as the orbital period and the white dwarf mass.