Mystery Object Tears Star Apart?

Excerpted from the Sky&Telescope posting June 7, 2009, below.  We know that binary star groups sometimes consume one partner with cataclysmic results, so this article should be no surprise. Still, the idea of invisible black holes that can tear a star apart in 200 days is something that boggles the mind:

Update on Hubble Mystery Object

June 7, 2009
by Rachel Courtland, NewScientist.com

Remember the Hubble Mystery Object? In 2006 it steadily brightened, then steadily faded over the course of 200 days total, in a way that resembled no known type of variable object. Even its spectrum was inscrutable, leaving no sign of whether it was a flare on a very faint star in our own Milky Way or some enormous eruption billions of light-years distant.

What was it?
Now you don’t see it, now you do. Something truly in the middle of nowhere — apparently not even in a galaxy — brightened by at least 120 times during more than three months and then faded away.
K. Barbary and others

Now there’s a sign that it was the latter. And one new theory suggests that an odd, wandering, intergalactic black hole tore apart a star of unusual composition … Gaensicke and colleagues propose two scenarios that might explain the object. In one, a carbon-rich star swung too close to an intermediate-mass or heavyweight black hole, which pulled it apart. Some of the material made its way into the black hole, and some was blasted off in a flare that was seen from Earth as SCP 06F6.

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