The circumstellar dust of "Born-Again" stars
A. Evans, R. D. Gehrz, L. A. Helton, and C. E. Woodward
TL;DR
This paper reviews the evolution of carbon dust shells around 'Born-Again' stars, focusing on infrared observations over 20 years of objects like Sakurai's object and FG Sge, highlighting their significance for stellar evolution.
Contribution
It provides a comprehensive 20-year overview of infrared observations of dust evolution in VLTP stars, linking these phenomena to stellar lifecycle outcomes.
Findings
Infrared observations reveal dust shell evolution over two decades.
VLTP stars may represent the future of Sun-like stars.
Dust evolution insights inform stellar lifecycle models.
Abstract
We describe the evolution of the carbon dust shells around Very Late Thermal Pulse (VLTP) objects as seen at infrared wavelengths. This includes a 20-year overview of the evolution of the dust around Sakurai's object (to which Olivier made a seminal contribution) and FG Sge. VLTPs may occur during the endpoint of as many as 25% of solar mass stars, and may therefore provide a glimpse of the possible fate of the Sun.
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