(cba:news) other candidate stars
Joe Patterson
jop at astro.columbia.edu
Wed Oct 9 14:23:25 EDT 2024
To flesh out the previous note:
I'm fascinated by V1674 Her and DQ Her because they are the only with a
complete pulse-period history since the nova outburst (in the case of DQ
Her, I should say "since pulse discovery", but it's possible the pulse
was there in the 20 years since the nova outburst, but nobody imagined
that such a fast signal could come from a nova - Walker's 1954 discovery
was considered shocking. V407 Lupi might be a third such star, but it's
still too lightly observed to know.
All other IPs have unknown eruption dates, probably centuries or
millennia ago.
The seasonally-and-magnitude-appropriate IPs are also good targets now -
AO Psc, FO Aqr, V1223 Sgr, etc. IM Nor and T Pyx are too -because they
are the two stars which appear to be lengthening their Porb at a
meteoric rate, consistent with very fast evolution.
Not a complete list by any means. Enrique may wish to supplement it -
he keeps much better track of the IPs.
joe
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