(cba:news) Likely black-hole transient
jop at astro.columbia.edu
Fri Sep 12 14:27:04 EDT 2008
Here's a flashy new toy in the evening sky:
(Position and field shown on the chart)
This is an outbursting X-ray source with properties like those of
black-hole transients, and with a decently bright optical counterpart -
possibly around 16th mag. Totally virgin object, though it won't be in
a few days when the ATel hits the newsstands. Imagine all those
beautiful superhumpy light curves falling tragically, and unobserved, on
humanity's deaf ears and shuttered telescopes!
Get thee to a telescope. Sorry for the inconvenient sky position. It
follows the general rule that things are always discovered *late* in the
observing season. But if we can patch together runs from ZA and NZ or
AU, we can still do a decent job - and can solve the alias issues.
Still waiting anxiously for V466 And to bust out in powerful superhumps.
When they start, they usually reach maximum amplitude within 1 day.
So keep a close watch!
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