Skip to main content

When novae change...

3 posts / 0 new
Last post
stellakafka
stellakafka's picture
When novae change...

I saw a paper on arXiv this morning that is quite interesting: it reports the discovery of an eclipsing dwarf nova which is embedded in a nebula. The interesting thing is that this nebula is considered to be a remnant from an old nova explosion (483 CE in Orion), therefore this dwarf nova was once a nova. The paper is talking about millenia-long transition from high accretion states (nova) to low accretion rates (dwarf nova), but we know that GK Per exhibited a similar behavior in less than a century (it was rather several decades). I am not sure what is responsible for this transition. Here's the link to the paper:

http://arxiv.org/abs/1511.04212

PYG
PYG's picture
Novae

Thanks for the link Stella.  It's an interesting subject, especially as we have two other candidates for Nova-DN transition - AT Cnc and Z Cam (from Galex).

Gary (PYG)

stellakafka
stellakafka's picture
Hello Gary,   I am interested

Hello Gary,

 

I am interested in finding out what the verdict is on the Z Cam shell. Is it definitelly connected with a nova eruption - do we know which one?

 

Thanks!

Stella.

Log in to post comments
AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484