KIC 8462852 Observations |
KIC 8462852 Observations |
Oct 15 2015, 04:45 PM
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#1
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Senior Member Group: Members Posts: 2530 Joined: 20-April 05 Member No.: 321 |
Kepler found one very, very strange case:
http://www.theatlantic.com/science/archive...-galaxy/410023/ In a nutshell, while Kepler was observing it, the star (larger and brighter than the Sun) exhibited four dimming events that took place at irregular intervals, blocked a lot more light than a Jupiter-sized planet would block, and had a "shape" that varied in all four cases and did not resemble a planet. This case is attracting some wild speculation… in fact, it is seemingly certain that something wild must be going on; it's just a matter of which wild scenario is the correct one. If I had to throw my hat in the ring, I'd guess that a distant collision and breakup has placed big swarms of matter into a very long-period orbit. But there's no hypothesis that's been offered that doesn't seem problematic. |
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Jan 28 2016, 10:11 PM
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#2
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Senior Member Group: Members Posts: 1440 Joined: 26-July 08 Member No.: 4270 |
Response from Schaefer. Rather direct...
http://www.centauri-dreams.org/?p=34933 -------------------- -- Hungry4info (Sirius_Alpha)
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Jan 29 2016, 12:24 AM
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#3
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Senior Member Group: Members Posts: 2530 Joined: 20-April 05 Member No.: 321 |
It seems like Schaefer has a definitively better grasp of the issue than his detractor.
I'm not sure why he said, "This dimming from the DASCH data is just a long-time scale version of the dimming also seen with the Kepler spacecraft…" but that may be nitpicking. Given one star and two anomalies, there's good reason to suspect that the anomalies might be related, but one of these, over a long timescale, is monotonic and the other, over a short timescale, was weirdly varying, and it's not certain that one is a version of the other. However, I think we can go back to seeing this as a three-part mystery: The century-long dimming, the planet-like dimming event at one point, and the weird, up-and-down dimming about 740 days later. |
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