Posted on 09/15/2008 11:47:36 AM PDT by LibWhacker
Don't get the idea that we've found every kind of astronomical object there is in the universe. In a paper to appear in the Astrophysical Journal, astronomers working on the Supernova Cosmology Project report finding a new kind of something that they cannot make any sense of.
Now you don't see it, now you do. Something in Bootes 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. Its spectrum was like nothing ever seen, write the discoverers, with "five broad absorption bands between 4100 and 6500 Angstroms and a mostly featureless continuum longward of 6500 Angstroms." Even the cause of the spectral features is unknown. K. Barbary and othersThe project used the Hubble Space Telescope to monitor very distant galaxy clusters for supernovae. On February 21, 2006, in the direction of a far-away cluster in Bootes named CL 1432.5+3332.8 (redshift 1.112, light travel time 8.2 billion years), Hubble began seeing something brighten. It continued brightening for about 100 days and peaked at 21st magnitude in two near-infrared colors. It then faded away over a similar timescale, until nothing was left in view down to 26th magnitude. The object brightened and faded by a factor of at least 120, maybe more.
The mystery object did not behave like any known kind of supernova. It is not even in any detectable galaxy. "The shape of the light curve is inconsistent with microlensing," say the researchers. They recorded three spectra of it — and its spectrum, they write, "in addition to being inconsistent with all known supernova types, is not matched to any spectrum in the Sloan Digital Sky Survey database" of vast numbers of objects. "We suggest that the transient may be one of a new class."
What's its distance? That would certainly be a first step to figuring it out, but only the broadest constraints can be put on its distance. Its lack of parallax motion means that it can't be closer than about 130 light-years, and a lack of cosmic hydrogen absorption in its spectrum means that it can't be farther than 11 billion light-years (when "distance" is defined by light travel time). That leaves a lot of leeway.
Here is the group's paper with all the details. The lead author is Kyle Barbary (University of California at Berkeley).
Now you don't see it, now you do. Something in Bootes 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. Its spectrum was like nothing ever seen, write the discoverers, with "five broad absorption bands between 4100 and 6500 Angstroms and a mostly featureless continuum longward of 6500 Angstroms." Even the cause of the spectral features is unknown.
Maybe a rip in the fabric of space. Is Spock sporting a beard these days?
Cool! Thanks for the link.
Cool...maybe someone on a distant world fired up one of those haldron super-collider thingies....
It was the Moties firing their Crazy Eddie retro rockets!
ping for later
Ping!
"Show me just what Mohammed brought that was new, and there you will find things only evil and inhuman, such as his command to spread by the sword the faith he preached." - Manuel II Palelologus
That’s awesome! Man that brings back some memories. I really enjoyed that book as a kid.
Barack's star no doubt.....
“Maybe a rip in the fabric of space. Is Spock sporting a beard these days?”
Extremely obscure South Park reference noted.
Maybe a planet with Amazon women?
Bravo for the obscure reference to one of the greatest scifi books ever!
Just an old alien cursing along with her left turn signals left on..
LOL. Now he is just a dim bulb in the firmament.
I loved those two books!
Ed
Zowie....this could get to be an interesting thread.
In celebration of George Takei’s wedding?
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