dwarf nova
(DN)
(flash of a cataclysmic variable star)
A dwarf nova (DN) is the flash of
a type of cataclysmic variable star (a white dwarf
accreting matter from a binary companion),
that is generally less bright than a (typical) nova.
Current theory ascribes dwarf novas to heating of accretion disk
material due to a short-term increase in the accretion rate,
i.e., some instability in the ongoing process.
The term dwarf nova is also used to refer to the star, which
is also termed a U Geminorum variable (UG).
Some subtypes:
- UG SS Cygni variable (UGSS).
- UG SU Ursae Majoris (UGSU).
- UG WZ Sagittae (UGWZ).
- UG Z Camelopardalis (UGZ).
(stars,event type,transient type)
Further reading:
https://en.wikipedia.org/wiki/Dwarf_nova
https://astronomy.swin.edu.au/cosmos/d/Dwarf+Novae
https://dictionary.obspm.fr/index.php?showAll=1&formSearchTextfield=dwarf+nova
https://www.oxfordreference.com/display/10.1093/oi/authority.20110803095737203
https://www.aavso.org/vsots_ugem
https://blog.planethunters.org/2012/04/07/dwarf-novae/
https://www.eso.org/sci/publications/messenger/archive/no.80-jun95/messenger-no80-43-45.pdf
Referenced by page:
variable star
Index