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Masquerade! Dwarf Nova Faces on Parade

2 Mar 2021, 17:00 UTC
Masquerade! Dwarf Nova Faces on Parade
(200 words excerpt, click title or image to see full post)

Editor’s note: Astrobites is a graduate-student-run organization that digests astrophysical literature for undergraduate students. As part of the partnership between the AAS and astrobites, we occasionally repost astrobites content here at AAS Nova. We hope you enjoy this post from astrobites; the original can be viewed at astrobites.org.
Title: Classical Novae Masquerading as Dwarf Novae? Outburst Properties of Cataclysmic Variables with ASAS-SN
Authors: A. Kawash et al.
First Author’s Institution: Michigan State University
Status: Accepted to ApJ
Who Is Who
My favorite star is a cataclysmic variable star, or Gillian Anderson, depending on the context of the question. This type of variable star is my favorite, because it’s actually a binary star system, instead of just a single star. In this system, a white dwarf accretes matter from a donor star, usually (but not always) one on the main sequence. In most cases, an accretion disk will also form around the white dwarf. See the cover image above for an illustrated example. Sometimes explosions will occur within the binary, and they’re called “novae.” A “classical nova” (CN; CNe plural) happens on the surface of the white dwarf and is caused by thermonuclear runaway. A “dwarf nova” (DN; DNe plural) happens ...

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