The Cepheid Galactic Internet - Tony Zee (SETI Talks)
Δημοσιεύτηκε στις 7 Μαΐ 2014
Tony
Zee talks about a proposal that a sufficiently advanced civilization
may employ Cepheid variable stars as beacons to transmit all-call
information throughout the galaxy and beyond. They might employ a pulsed
neutrino beam to trigger the expansion of a Cepheid at an earlier than
normal time, generating a binary signature of normal period or
artificially shortened period.
One can construct many scenarios
wherein it would be desirable for such a civilisation of star ticklers
to transmit data to anyone else within viewing range.
The beauty
of employing Cepheids is that these stars can be seen from afar (we
monitor them out through the Virgo cluster), and any developing
technological society would seem to be likely to closely observe them as
distance markers. Records exist of Cepheids for well over 100 years. We
propose that these (and other regularly variable types of stars) be
searched for signs of phase modulation (in the regime of short pulse
duration) and patterns, which could be indicative of intentional
signalling.
Zee talks about a proposal that a sufficiently advanced civilization
may employ Cepheid variable stars as beacons to transmit all-call
information throughout the galaxy and beyond. They might employ a pulsed
neutrino beam to trigger the expansion of a Cepheid at an earlier than
normal time, generating a binary signature of normal period or
artificially shortened period.
One can construct many scenarios
wherein it would be desirable for such a civilisation of star ticklers
to transmit data to anyone else within viewing range.
The beauty
of employing Cepheids is that these stars can be seen from afar (we
monitor them out through the Virgo cluster), and any developing
technological society would seem to be likely to closely observe them as
distance markers. Records exist of Cepheids for well over 100 years. We
propose that these (and other regularly variable types of stars) be
searched for signs of phase modulation (in the regime of short pulse
duration) and patterns, which could be indicative of intentional
signalling.
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