Irakli Simonia
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| Irakli Simonia | |
|---|---|
 Irakli Simonia.jpg Irakli Simonia | |
| Born | October 22, 1961 Tbilisi, Georgian Soviet Socialist Republic |
| 🏳️ Nationality | Georgian |
| 💼 Occupation | |
Irakli Simonia (Georgian: ირაკლი სიმონია; October 22, 1961 — ) is a Georgian Georgian astrophysicist and specialist in the ancient astronomy. Irakli Simonia graduated physics and mathematics department of Tbilisi State Pedagogical University in 1985, with MS in physics. He received a PhD in cometary astrophysics from Georgia Academy of Sciences in 1998. His scientific supervisor was Professor Klim Churyumov. During 1988 – 2008 he was a researcher at Abastumany Astrophysical Observatory. Since 2008 he is an Associate Professor of Astronomy at the School of Natural Sciences and Medicine of Ilia State University. During 2009 – 2014 he was an adjunct professor at James Cook University, Australia.
Scientific activity[edit]
Irakli Simonia is author of more than 80 scientific papers in fields of astrophysics, cosmochemistry and the ancient astronomy. He investigates physics and chemistry of cometary ice and dust; interplanetary dust; Trans-Neptunian Objects; mineral and icy dust of the galactic nebula and other objects. He investigates also astromegalithes; ethno-cosmological peculiarities of small artifacts; and the medieval astronomical manuscripts. He developed a new theory of photoluminescence of cosmic ice and dust. Particularly he suggested a new model of frozen hydrocarbon particles of cometary atmospheres and galactic nebula. He described the properties of these particles in the form of icy micro-grains – frozen mixtures of aromatic and aliphatic hydrocarbons, and applied this theory and model to the study of ice of comets 122P/de Vico, 153P/Ikeya-Zhang and nebula CED 201. He demonstrated that previously unidentified emissions of optical spectra of these comets and nebula represent the photoluminescence of frozen hydrocarbon particles of these objects..[1] [2] [3] [4] [5] [6] [7] [8].
He considered thermoluminescence properties of solid cometary matter, including carbonaceous dust [9].
He demonstrated (together with a co-author) that the frozen hydrocarbon matter of comets, including relict matter, may contain prebiotics or their structural analogues, which luminesce under the influence of external radiation [10].
Irakli Simonia suggested (together with a co-author) a new explanation of visible reddening of Trans-Neptunian Objects as double scattering of sunlight by nanometric dust of an ecliptic dust cloud [11].
He suggested new mechanism of the formation of diffuse interstellar bands in the spectra of galactic objects – a phenomenon of interstellar quasiline absorption [12].
The investigations conducted by I.Simonia in the field of ancient astronomy cover both the history of astronomy and archaeoastronomy [13] [14]. He investigated the development of the cosmological worldview and astronomical knowledge in the ancient Georgia during the period of 16th century BC – 18th century AD [15] [16].
He proposed (together with a co-authors) a concept of “solar stations” as megalithic multifunctional complexes of ritual, observational, and calendar significance [17] [18] [19].
He investigated a number of Georgian, Persian and Arabic astronomical manuscripts (9-19 centuries) and published (together with a co-authors) an e-book – a scientific database on Astronomical Manuscripts in Georgia [20] [21]
Academic activity[edit]
Irakli Simonia leads courses in astronomy, molecular astrophysics, and archaeoastronomy. He supervises PhD students. He created the world’s first PhD program in archaeoastronomy at Ilia State University.
Honor[edit]
- Minor planet 124398 Iraklisimonia, discovered by Roy Tucker in 2001, was named in Irakli Simonia honor[22]
References[edit]
- ↑ Simonia, I. Organic component of cometary ice. Astrophysics and Space Science, Vol. 332 (1), pp.91-98, 2011. DOI: 10.1007/s10509-010-0486-8
- ↑ Simonia, I. Frozen Hydrocarbons in Comets. The Astronomical Journal, Vol.141 (2), id. 56, 6 pp., 2011. DOI: 10.1088/0004-6256/141/2/56
- ↑ Simonia, I. On the possible luminescence nature of unidentified cometary emissions. Astrophysics and Space Science, Vol.312 (1-2), pp. 27-33, 2007. DOI: 10.1007/s10509-007-9608-3
- ↑ Simonia, I. A. Luminescence of cosmic dust— A result of the interaction of radiation with solid matter. Astrophysics, Vol.50, (4), pp.548-551, 2007. DOI: 10.1007/s10511-007-0051-5
- ↑ Simonia, I.A. Frozen Hydrocarbon Particles as a Luminescent Dust Component of Nebular Matter. Astrophysics, Vol. 48, (3), pp.374-380, 2005. DOI: 10.1007/s10511-005-0036-1
- ↑ Simonia, I.A. Unidentified Cometary Emission Lines as the Photoluminescence of Frozen Hydrocarbon Particles. Astronomy Letters, Vol. 30, Issue 12, p.863-868, 2004. DOI: doi.org/10.1134/1.1833438
- ↑ Simonia, I.A. Luminescence of Dust in the Nebula CED 201. Astrophysics, Vol. 47 (4), p. 530-537, 2004. DOI: 10.1023/B:ASYS.0000049792.59266.33
- ↑ Simonia, I. Luminescence of Cometary Hydrocarbons. Comments on Astrophysics, Comments on Modern Physics, Vol.1, Part E, p. 25-30, 1999. Bibcode: 1999ComAp…1…25S
- ↑ Simonia, I. Possible Thermoluminescence of the Solid Cometary Substance: Thermoluminescence of Cometary Substance. The Astronomical Journal, Vol. 152 (4), id. 87, 8 pp., 2016. DOI: 10.3847/0004-6256/152/4/87
- ↑ Simonia, I.; Cruikshank, D. P. Organic Molecules in the Icy Bodies of Planetary Systems - Accepted Notions and New Ideas. Open Astronomy, Vol. 27, (1), pp.341-355, 2018. DOI: 10.1515/astro-2018-0038
- ↑ Simonia, I.; Nabiyev, Sh. Nano-metric Dust Particles as a Hardly Detectable Component of the Interplanetary Dust Cloud. Journal of Astrophysics and Astronomy, Vol. 36, (3), pp. 409-419, 2015. DOI: 10.1007/s12036-015-9347-8
- ↑ Simonia, I. A. Diffuse Interstellar Bands as Absorption by Frozen Oriented Gas. Astrophysics, Vol. 62 (1), pp.79-91, 2019. DOI: 10.1007/s10511-019-09566-7
- ↑ Simonia, I., Simonia, Ts. Substances of the Ancient Cosmology. The Inspiration of Astronomical Phenomena VI. Proceedings of a conference held October 18-23, 2009 in Venezia, Italy. Edited by Enrico Maria Corsini. ASP Conference Series, Vol. 441. San Francisco: Astronomical Society of the Pacific, p.409 – 413, 2011. ISBN 978-1-58381-762-9 e-book ISBN 978-1-58381-763-6
- ↑ Simonia, I., Simonia, Ts. Metal Artifacts as a Mirror of Ancient Georgian Astronomical World View. Current Studies in Archaeoastronomy. Conversations Across Time and Space. Selected papers from the Fifth Oxford International Conference at Santa Fe, 1996. Eds. John W. Fountain, Rolf M. Sinclair. Carolina Academic Press, pp.435-440, 2005. ISBN 0-89089-771-9
- ↑ Simonia, I. Ancient Astronomical Knowledge: the Unity of Diversity. Astronomical Heritage of the Middle East. ASP Conference Series, Vol. 520, proceedings of a conference held (13-17 November 2017) the Armenian National Academy of Sciences in Yerevan, Armenia. Edited by Sona V. Farmanyan, Areg M. Mickaelian, J. McKim Malville, and Mohammad Bagheri. San Francisco: Astronomical Society of the Pacific, 2019, p.59 – 70. ISBN 978-1-58381-927-2 e-book ISBN 978-1-58381-928-9
- ↑ Simonia, I. Little known aspects of the history of Georgian astronomy. Journal of Astronomical History and Heritage, Vol. 4, (1), p. 59-73, 2001. ISSN 1440-2807. Bibcode:2001JAHH….4…59S
- ↑ Simonia, I., Jijelava, B. Astronomy in the Ancient Caucasus. Handbook of Archaeoastronomy and Ethnoastronomy. Springer Science+Business Media New York, p. 1443 – 1451, 2015. ISBN 978-1-4614-6140-1. DOI: 10.1007/978-1-4614-6141-8-138
- ↑ Simonia, I., Jijelava, B. Astronomy in the Ancient Caucasus. Handbook of Archaeoastronomy and Ethnoastronomy. Springer Science+Business Media New York, p. 1443 – 1451, 2015. ISBN 978-1-4614-6140-1. DOI: 10.1007/978-1-4614-6141-8-138
- ↑ Simonia, I. Astronomical Significance of Ancient Monuments The Inspiration of Astronomical Phenomena VI. Proceedings of a conference held October 18-23, 2009 in Venezia, Italy. Edited by Enrico Maria Corsini. ASP Conference Series, Vol. 441. San Francisco: Astronomical Society of the Pacific, p.487 – 493, 2011. ISBN 978-1-58381-762-9 e-book ISBN 978-1-58381-763-6
- ↑ Simonia, I.; Simonia, Ts.; Abuladze, T.; Chkhikvadze, N.; Samkurashvili, L.; Pataridze, K. DVD Database Astronomical Manuscripts in Georgia. Astronomical Surveys and Big Data: Proceedings of an International Symposium dedicated to the 50th anniversary of the Markarian Survey and the 10th anniversary of the Armenian Virtual Observatory held at Byurakan Astrophysical Observatory, Byurakan, Armenia on 5-8 October 2015. Edited by Areg M. Mickaelian, Andy Lawrence and Tigran Yu. Magakian. ASP Conference Series, Vol. 505, 2016, p.252 – 261. DOI: ISBN 978-1-58381-894-7, e-book ISBN 978-1-58381-895-4
- ↑ Simonia, I., Abuladze, T., Chkhikvadze, N., Samkurashvili, L., Simonia, Ts., Pataridze, K., Meladze, G. Astronomical Manuscripts in Georgia. Ilia State University Press, 2015, Tbilisi, Georgia. ISBN 978-9941-18-225-9
- ↑ IAU WGSBN Bulletin volume 1, No1, May 14 2021, page 21
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