[Aavso-photometry] Information on N CYG 05 (V2361 Cyg)

[Richard Miles]

>> How exotic this object turns out to be is yet to be seen.  For example,
>> it
>> may be a binary object (like DQ Her and U Sco) in which case short-period
>> oscillations in brightness and recurrent events may take place from which
>> its nature can be better discerned.
>
> I didn't get the point here. Aren't all novae supposed to be binaries?
>

Hello Sebastian,

I am on a steep learning curve rather like the converse of this nova's
decline from maximum, so don't take what I say as gospel truth.  Dwarf novae
/ recurrent novae are definite binaries, and most novae arise from
thermonuclear runaway reactions on the surface of the white dwarf component
of a binary system.  However, I thought a proportion of novae arise through
normal stellar evolution of stars in a particular high-mass category.  Will
have to check this obviously.

Apparently from IAUC 8484, the object is a confirmed nova exhibiting an FWHM
of the  broadened H_alpha line width equivalent to 3200 km/s.

Richard