Nova super-remnants (NSRs) are substantially extended structures (up to ∼130 parsecs across)
encompassing recurrent novae. NSRs grow as a result of frequent nova eruptions transporting vast
quantities of the locally surrounding interstellar medium away from the binary system over many
millennia into a thin high-density shell, as the central white dwarf grows towards the Chandrasekhar
limit. The prototypical NSR, first identified as such in 2014, is situated in the Andromeda Galaxy
and belongs to the annually erupting nova, M 31N 2008-12a (or ‘12a’). In this short review,
modelling of evolving NSRs (including the 12a NSR) will be outlined as motivation towards
searching for more of these phenomena in the Galaxy and beyond. The latest developments in
this upcoming subfield of nova research will then be presented including the discovery of two new
Galactic nova super-remnants (and their consequent modelling) and the first survey undertaken
with the sole purpose of finding NSRs in the Andromeda Galaxy and the Large Magellanic Cloud
Volume 460 -
The Golden Age of Cataclysmic Variables and Related Objects - VI (GOLDEN2023) -
Classical Novae, Recurrent Novae and Nova-like Stars
Association between Recurrent Novae and Nova Super-Remnants
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Published on:
November 20, 2024
Abstract
DOI: https://doi.org/10.22323/1.460.0035
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.