The Orion's Arm Universe Project Forums





Astronomers may have found giant alien 'megastructures' orbiting star near the Milky
#47
http://arxiv.org/abs/1601.07314
KIC 8462852 did likely not fade during the last 100 years
Michael Hippke, Daniel Angerhausen
(Submitted on 27 Jan 2016)
A recent analysis found a "completely unprecedented" dimming of 0.165±0.013 magnitudes per century in the F3 main sequence star KIC8462852. This star is interesting, as it shows episodes of day-long dips with up to 20% dimming of unknown origin. We re-analyze the same Harvard archival Johnson B photometry and find comparable dimmings, and structural breaks, for 18 of 28 checked F-dwards (64%) in the Kepler field of view. We conclude that the Harvard plates photometry suffers from imperfect long-term (1890--1989) calibration. The most likely explanation for the century-long dimming of KIC8462852 is thus a data artefact, and it is probably not of astrophysical origin.

---------------------------------------
Science - always changing its mind...
Reply


Messages In This Thread
RE: Astronomers may have found giant alien 'megastructures' orbiting star near the Milky - by stevebowers - 01-30-2016, 01:00 AM

Forum Jump:


Users browsing this thread: 5 Guest(s)