کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1715284 1519970 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Is interstellar archeology possible?
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی هوافضا
پیش نمایش صفحه اول مقاله
Is interstellar archeology possible?
چکیده انگلیسی

Searching for signatures of cosmic-scale archeological artifacts such as Dyson spheres is an interesting alternative to conventional radio SETI. Uncovering such an artifact does not require the intentional transmission of a signal on the part of the original civilization. This type of search is called interstellar archeology or sometimes cosmic archeology. A variety of interstellar archeology signatures is discussed including non-natural planetary atmospheric constituents, stellar doping, Dyson spheres, as well as signatures of stellar, and galactic-scale engineering. The concept of a Fermi bubble due to interstellar migration is reviewed in the discussion of galactic signatures. These potential interstellar archeological signatures are classified using the Kardashev scale. A modified Drake equation is introduced. With few exceptions interstellar archeological signatures are clouded and beyond current technological capabilities. However SETI for so-called cultural transmissions and planetary atmosphere signatures are within reach.


► Interstellar archeological artifacts (IA) like Dyson spheres are alternatives to SETI.
► Most IA signatures are clouded and beyond current technological capabilities.
► A modified Drake equation is introduced to discuss these possibilities.
► Non-natural planetary atmospheric constituents may be observable in several decades.
► A speculative galactic signature is a “Fermi bubble” due to interstellar migration.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Astronautica - Volume 78, September–October 2012, Pages 121–126
نویسندگان
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