Alexander Zaitsev (astronomer) explained

Aleksandr Zaitsev
Birth Name:Aleksandr Leonidovich Zaitsev
Image Upright:0.8
Birth Date:19 May 1945
Birth Place:Shchyolkovo, Russian SFSR
Field:Radar astronomy
Messaging to Extra-Terrestrial Intelligence (METI)
near-Earth asteroid radar research
Known For:the chief scientist at the Russian Academy of Science's Institute of Radio Engineering and Electronics
the SETI League's Regional Coordinator for Russia

Aleksandr Leonidovich Zaitsev (Russian: Александр Леонидович Зайцев; 19 May 1945 – 29 November 2021) was a Russian and Soviet radio engineer and astronomer from Fryazino.[1] [2] [3] He worked on radar astronomy devices, near-Earth asteroid radar research, and SETI.

Education

Zaitsev received his M.Sc. degree in radio engineering from the Moscow Mining University in 1967 and his Ph.D. (1981) and his postdoctoral lecture qualification (1997) in radar astronomy from the Institute of Radio Engineering and Electronics, Russian Academy of Science in Moscow. He was a member of the Space Guard Foundation, the SETI League, and The European Radio Astronomy Club (E.R.A.C.).[4]

Career

Zaitsev was the chief scientist at the Russian Academy of Science's Institute of Radio Engineering and Electronics. He headed the group transmitting Team Encounter's interstellar messages[5] using the Yevpatoria (Evpatoria) Deep Space Center (EDSC).[6] Zaitsev was also serving as the SETI League's Regional Coordinator for Russia.[7]

Zaitsev's career has focused on three main topics: the theory, the design and implementation of radar devices used in the study of Venus, Mars, and Mercury; near-Earth asteroid radar research;[8] and interstellar radio messaging,[9] his later field of research. He retired in 2013.

Zaitsev observed the asteroid 4179 Toutatis[10] in December 1992 using the 70-m Yevpatorian Planetary Radar in Crimea (Ukraine), as a sounding signal transmitter, and the 100-m radio telescope in Effelsberg, Germany, as a receiver of the asteroid's radar echo.

In June 1995, Zaitsev was responsible for initiating the world's first intercontinental radar astronomy experiment; the radar groups participating in this experiment were led by Steven Ostro at JPL, Zaitsev in Yevpatoria, and Yasuhiro Koyama in Kashima, Japan. Ostro's group transmitted and received using the Goldstone site of the Deep Space Network, while Zaitsev received using the Yevpatoria site and Koyama's group received at Kashima. The target asteroid, 6489 Golevka, was later named for the participating observatories (GOL-EV-KA or GOLdstone-EVpatoria-KAshima). Zaitsev has also conducted work on using radar to determine the composition of asteroids and planetary bodies.

Zaitsev supervised the transmission of the 1999 and 2003 Cosmic Calls[11] from Yevpatoria Planetary Radar[12] (EPR).[13] [14] [15] [16] Under his leadership, a youth group in Moscow composed and broadcast a 'Teen Age Message to ETI'. Zaitsev proposed three-section structure of interstellar radio messages, coined the acronym METI (Messaging to Extra-Terrestrial Intelligence)[17] [18] and the phrase 'SETI paradox',[19] which refers to an apparent "paradox" where two distant civilizations capable of interstellar communication will always remain silent unless one of them contacts the other first, resulting in a deadlock of silence. In 2005, in article "The Drake Equation: Adding a METI Factor" he suggested that a high technology is not enough for establishing contact with Aliens because appropriate behavior directed to practical realization of sending signals is necessary too.

In 2006–2011, Zaitsev was one of the contributors to the

Zaitsev died on 29 November 2021.[25]

Awards

References

Notes and References

  1. Picture of Alexander Zaitsev during the ERAC Conference at the Starkenburg Observatory in Heppenheim, Germany, in 2004; http://www.setileague.org/photos/eurose04/euro0407.jpg
  2. Official picture of Alexander Zaitsev – http://www.spacedaily.com/images/seti-alexander-zaitsev-bg.jpg
  3. Summary – http://www.daviddarling.info/encyclopedia/Z/Zaitsev.html
  4. ERAC homepage – http://www.eracnet.org/
  5. Interstellar radio messages – http://www.cplire.ru/html/ra&sr/irm/index.html
  6. Yevpatoria Deep Space Communication Center – Web site: Deep Space Communication Center . 25 November 2007 . dead . https://web.archive.org/web/20071226125706/http://evpatoria.asteroids.ru/DSCC.ENG/index.htm . 26 December 2007 .
  7. SETI League: http://www.setileague.org
  8. EuroRadar – Origin and Concepts of Design – Web site: Tumbling Stone n10 - Euro Radars . 25 November 2007 . dead . https://web.archive.org/web/20050419031223/http://spaceguard.esa.int/tumblingstone/issues/num10/euroradar.htm . 19 April 2005 .
  9. Sending and Searching for Interstellar Messages – http://fire.relarn.ru/126/docs/iac_07_a4_2.02.pdf
  10. MPC No 25445, 1995
  11. Cosmic Call 2003 – http://lnfm1.sai.msu.ru/SETI/koi/bulletin/23/1.1.html
  12. http://echo.jpl.nasa.gov/publications/review_abs.html Planetary radar astronomy
  13. Book: Oberhaus, Daniel. Extraterrestrial Languages. 27 September 2019. MIT Press. 978-0-262-35527-8. 145–146. en. 1142708941.
  14. Article "Design and Implementation of the 1st Theremin Concert for Aliens" – http://www.cplire.ru/html/ra&sr/irm/Theremin-concert.html
  15. Article SETI-METI "Past – Present – Future" – http://www.setileague.org/editor/motion.htm
  16. Web site: Alexander . Zaitsev . 6 April 2006 . One-dimensional Radio Message for 'Blind' Aliens . https://web.archive.org/web/20181225080619/http://www.orbit.zkm.de/?q=node%2F187 . 25 December 2018 . 20 April 2021 . live .
  17. Web site: METI Art . Alexander . Zaitsev . Richard . Braastad .
  18. https://arxiv.org/abs/physics/0610031 Messaging to Extra-Terrestrial Intelligence
  19. The SETI Paradox – https://arxiv.org/abs/physics/0611283
  20. German Announcement of TV transmission "Die Außerirdischen" - http://www.documentary-campus.com/p/calling_all_aliens/
  21. Web site: National Geographic TV Shows, Specials & Documentaries. channel.nationalgeographic.com . https://web.archive.org/web/20090129095102/http://channel.nationalgeographic.com/episode/calling-all-aliens-4206 . 29 January 2009.
  22. Web site: The SETI League, Inc.: Translation of "Overcome the Great Silence!".
  23. Web site: IDFA International Documentary Film Festival Amsterdam.
  24. Web site: Private video on Vimeo.
  25. News: Умер ученый Александр Зайцев, отправлявший послания внеземным цивилизациям. 30 November 2021. 3 December 2021. Gazeta.Ru. ru. Alexander Zaitsev, who sent messages to extraterrestrial civilizations, has died. Maxim Borisov.
  26. Korolev Medal – Web site: NASM Space Artifacts: S.P. Korolev Medal . 25 November 2007 . dead . https://web.archive.org/web/20070705120457/https://www.nasm.si.edu/research/dsh/artifacts/IS-Korolev.htm . 5 July 2007 .
  27. Web site: Jubilee medal.

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