Research

 Density Conversion between 1D and 3D Stellar Models with ^1DMESA2HYDRO^3D

The initial conditions generator for converting radial profiles from the 1D stellar evolution code, MESA, to 3D hydrodynamic codes developed at the SAAO by PhD intern M. Joyce is now published  and available for download from: https://github.com/mjoyceGR/MESA2HYDRO.

ALMA reveals the aftermath of a white dwarf-brown dwarf merger in CK Vul

Dust emission from CK Vul as observed by ALMA. (a) Continuum emission associated with dust, contours at −0.12, 0.12, 0.24, 0.48, 0.96, 1.44, and 1.92 mJy beam−1. (b) Dust emission (contours at 0.12 and 0.48 mJy beam−1 for reference) in relation to the extended H α emission (Hajduk et al. 2007).

Atacama Large Millimeter–Submillimeter Array (ALMA) observations of CK Vulpeculae which is identified with ‘Nova Vulpeculae 1670’ suggest that a white dwarf and brown dwarf merged between 1670 and 1672, with the observed structures and extraordinary isotopic abundances generated as a result. For more details see: S. P. S. Eyres et al., 2018, MNRAS, 481, 4931