OPTICAL SETI OBSERVATIONS OF THE ANOMALOUS STAR KIC 8462852

@article{Schuetz2015OPTICALSO,
  title={OPTICAL SETI OBSERVATIONS OF THE ANOMALOUS STAR KIC 8462852},
  author={Marlin N. Schuetz and Douglas A. Vakoch and Seth Shostak and Jon Richards},
  journal={The Astrophysical Journal Letters},
  year={2015},
  volume={825}
}
To explore the hypothesis that KIC 8462852's aperiodic dimming is caused by artificial megastructures in orbit, rather than a natural cause such as cometary fragments in a highly elliptical orbit, we searched for electromagnetic signals from KIC 8462852 indicative of extraterrestrial intelligence. The primary observations were in the visible optical regime using the Boquete Optical SETI Observatory in Panama. In addition, as a recommended preparatory exercise for the possible future detection… 

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References

SHOWING 1-10 OF 29 REFERENCES

A Search for Brief Optical Flashes Associated with the SETI Target KIC 8462852

The F-type star KIC 8462852 has recently been identified as an exceptional target for search for extraterrestrial intelligence (SETI) observations. We describe an analysis methodology for optical

A near-infrared SETI experiment: probability distribution of false coincidences

A Search for Extraterrestrial Life (SETI), based on the possibility of interstellar communication via laser signals, is being designed to extend the search into the near-infrared spectral region

Status of the UC-Berkeley SETI efforts

Radio and optical SETI programs based at the University of California, Berkeley are summarized, including the Astropulse project, which is the first SETI search for μs time scale pulses in the radio spectrum.

Search for Nanosecond Optical Pulses from Nearby Solar-Type Stars

With "Earth 2000" technology we could generate a directed laser pulse that outshines the broadband visible light of the Sun by 4 orders of magnitude. This is a conservative lower bound for the

A Search for Optical Laser Emission Using Keck HIRES

We present a search for laser emissions coming from point sources in the vicinity of 2796 stars, including 1368 Kepler objects-of-interest (KOIs) that host one or more exoplanets. We search for

KIC 8462852: THE INFRARED FLUX

We analyzed the warm Spitzer/IRAC data of KIC 8462852. We found no evidence of infrared excess at 3.6 μm and a small excess of 0.43 ± 0.18 mJy at 4.5 μm below the 3σ threshold necessary to claim a

THE Ĝ SEARCH FOR EXTRATERRESTRIAL CIVILIZATIONS WITH LARGE ENERGY SUPPLIES. IV. THE SIGNATURES AND INFORMATION CONTENT OF TRANSITING MEGASTRUCTURES

Arnold, Forgan, and Korpela et al. noted that planet-sized artificial structures could be discovered with Kepler as they transit their host star. We present a general discussion of transiting

OSETI with STACEE: a search for nanosecond optical transients from nearby stars.

The Solar Tower Atmospheric Cherenkov Effect Experiment (STACEE) high-energy gamma-ray detector is used to look for fast blue-green laser pulses from the vicinity of 187 stars, finding no evidence for laser pulses in any of the data sets.

RADIO SETI OBSERVATIONS OF THE ANOMALOUS STAR KIC 8462852

We report on a search for the presence of signals from extraterrestrial intelligence in the direction of the star system KIC 8462852. Observations were made at radio frequencies between 1 and 10 GHz

KIC 8462852 Faded at an Average Rate of 0.164 ± 0.013 Magnitudes per Century from 1890 to 1989

KIC 8462852 is a completely ordinary F3 main-sequence star, except that the light curve from Kepler shows episodes of unique and inexplicable day-long dips with up to 20% dimming. Here, I provide a