The Cepheid Galactic Internet


Details

Date
Tuesday, May 06 2014 - 12:00 pm, PDT
Speaker
Tony Zee
Affiliation
Kavli Institute for Theoretical Physics, UC Santa Barbara
Description

cepheidhttps://plus.google.com/events/cv2vnk4l8sbgf43drsaf65if8jg

Tony Zee will talk 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.

Eventbrite - The Cepheid Galactic Internet - Communicating Between the Stars

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