Frontiers in Artifact SETI: Waste Heat, Alien Megastructures & Tabbys St...
Δημοσιεύτηκε στις 12 Αυγ 2016
In
1960 two seminal papers in SETI were published, providing two visions
for SETI. Giuseppe Cocconi and Philip Morrison’s proposed detecting
deliberate radio signals ("communication SETI"), while Freeman Dyson
("artifact SETI"), proposed detecting the inevitable effects of massive
energy supplies and artifacts on their surroundings. While communication
SETI has now had several career-long practitioners, artifact SETI has,
until recently, not been a vibrant field of study.
The launch of
the Kepler and WISE satellites have greatly renewed interest in the
field, however, and the recent Breakthrough Listen Initiative has
provided new motivation for finding good targets for communication SETI.
Dr. Wright will discuss the progress of the Ĝ Search for
Extraterrestrial Civilizations with Large Energy Supplies, including its
justification and motivation, waste heat search strategy and first
results, and the framework for a search for megastructures via transit
light curves. The last of these led to the identification of KIC 8462852
(a.k.a. "Tabby's Star") as a candidate ETI host. This star,
discovered by Boyajian and the Zooniverse Planet Hunters, exhibits
several apparently unique and so-far unexplained photometric properties,
and continues to confound natural explanation.
1960 two seminal papers in SETI were published, providing two visions
for SETI. Giuseppe Cocconi and Philip Morrison’s proposed detecting
deliberate radio signals ("communication SETI"), while Freeman Dyson
("artifact SETI"), proposed detecting the inevitable effects of massive
energy supplies and artifacts on their surroundings. While communication
SETI has now had several career-long practitioners, artifact SETI has,
until recently, not been a vibrant field of study.
The launch of
the Kepler and WISE satellites have greatly renewed interest in the
field, however, and the recent Breakthrough Listen Initiative has
provided new motivation for finding good targets for communication SETI.
Dr. Wright will discuss the progress of the Ĝ Search for
Extraterrestrial Civilizations with Large Energy Supplies, including its
justification and motivation, waste heat search strategy and first
results, and the framework for a search for megastructures via transit
light curves. The last of these led to the identification of KIC 8462852
(a.k.a. "Tabby's Star") as a candidate ETI host. This star,
discovered by Boyajian and the Zooniverse Planet Hunters, exhibits
several apparently unique and so-far unexplained photometric properties,
and continues to confound natural explanation.
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