[vsnet-alert 23892] Re: DDE 158 = GALEX J140934.6-384610 outburst

Taichi Kato tkato at kusastro.kyoto-u.ac.jp
Fri Jan 24 09:42:58 JST 2020


> DDE 158 is in the ROSAT footprint, since there's a QSO 1.6 arc min from it.
> X-ray luminocity is fainter by two orders of magnitude than that of DO Dra.
> The accretion rate is much lower. Colors are much redder:

   DO Dra is an IP.  If DDE 158 is not an IP and has
even lower Mdot, the values looks like to me
consistent.

> more reminescent of the
> brightenings in WZ Sge-type dwarf nova SDSS J080434.20+510349.2 near
> quiescence.

   This one looks OK.  Probably not ordinary dwarf-nova
outbursts.



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