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Yakiv Volodymyrovych Pavlenko
Павленко Яків Володимирович
Born	(1954-01-24)January 24, 1954 Makalevichi [uk], Ukraine
Died	19 October 2024(2024-10-19) (aged 70) Ukraine
Nationality	Ukrainian
Alma mater	Kyiv University
Awards	2009: Prize after Barabashov of the National Academy of Sciences of Ukraine [uk] 2014: State Prize of Ukraine in Science and Technology 2016: Basic Science Book Award of the International Academy of Astronautics
Scientific career
Fields	astrophysics, astronomy
Institutions	MAO NASU [uk]
Thesis	Formation of lithium lines in atmosheres of late-type stars without LTE (1996)
Website	mao.kiev.ua/staff/yp/

Yakiv Volodymyrovych Pavlenko ((1954-01-24)24 January 1954 – (2024-10-19)19 October 2024) was a Ukrainian astronomer and astrophysicist, who researched low-mass stars and exocomets.

Early life and education

He was born in 1954 in Makalevychi [uk] village, Zhytomyr region, Ukraine. Pavlenko graduated from Kyiv University in 1976 with a Master's degree in Astronomy and Physics. He was a student of Mykola Avenirovych Yakovkin, a son of Avenir Aleksandrovich Yakovkin.

Pavlenko was an Aspirant at Tartu Observatory (Estonia) in 1979–1982, where he received a Candidate of Sciences degree in Astrophysics and Radioastronomy in 1984. He received a Doctor of Science degree in Astrophysics and Radioastronomy at MAO NASU in 1996.

Career and research

Pavlenko worked at the Main Astronomy Observatory of the National Academy of Sciences of Ukraine [uk] (MAO NASU) from 1983. From 1994, he was a Senior Research Fellow. From 2017, Pavlenko headed the Department of Physics of Substellar and Planetary Systems of MAO NASU. In 2023, Pavlenko become Chief Research Fellow at the Department of Physics of Substellar and Planetary Systems of MAO NASU.

Beginning in 1989, Pavlenko collaborated with the research group on Exoplanets and Astrobiology of the Instituto de Astrofísica de Canarias (IAC).

In January 2020, Mario Damasso and colleagues published a paper on the discovery of Proxima Centauri c, the second exoplanet near Proxima Centauri. To exclude fluctuations in spectrum resulted of red dwarf flare activity, Damasso used research work by Pavlenko and others at IAC on analysing spectrography data of HARPS mission.

In 2022, a paper with the results of exocomets research and discovery of 5 new exocomets, written by Pavlenko together with others at MAO NASU, was published in the journal Astronomy & Astrophysics. In autumn of that year, he visited IAC to model the atmospheres of brown dwarf and exoplanets objects.

In addition to his research work, Pavlenko was a lecturer and examiner, and was one of editors of the journal Kinematics and Physics of Celestial Bodies [uk]. From 2023, he was an expert adviser to the Science at Risk! project, a Ukrainian digital platform that disseminates information on the effects of war on scientific research in Ukraine.

Personal life

Pavlenko's wife, Larysa Yakovina, has a PhD in astrophysics; they have a daughter.

Yakiv Pavlenko died on 19 October 2024, at the age of 70. Yaroslav Yatskiv [uk] published an obituary on the MAO NASU site.

Awards

• Barabashov prize of the National Academy of Sciences of Ukraine [uk] (2009)
• State Prize of Ukraine in Science and Technology (2014)
• Basic Science Book Award of the International Academy of Astronautics (2016), for the "Dark energy and dark matter in the Universe : in three volumes" (2013–2015) book series (Vol 2 co-authored by Yakiv and Olena Pavlenko).

Publications

Research papers

• Pavlenko, Ya. V.; Suárez Mascareño, A.; Zapatero Osorio, M. R.; Rebolo, R.; Lodieu, N.; Béjar, V. J. S.; González Hernández, J. I.; Mohorian, M. (2019). "Temporal changes of the flare activity of Proxima Centauri". Astronomy & Astrophysics. 626: A111. arXiv:1905.07347. Bibcode:2019A&A...626A.111P. doi:10.1051/0004-6361/201834258. ISSN 0004-6361.
• Eduardo L Martín, Nicolas Lodieu, Yakiv Pavlenko, Víctor J. S. Béjar (2018). The lithium depletion boundary and the age of the Hyades cluster. The Astrophysical Journal 856 (1): 40 doi:10.3847/1538-4357/aaaeb8
• J. S. Jenkins, L. W. Ramsey, H. R. A. Jones, Y. Pavlenko, J. Gallardo, J. R. Barnes, D. J. Pinfield (2009). Rotational Velocities for M Dwarfs. The Astrophysical Journal 704: 975–988 doi:10.1088/0004-637X/704/2/975
• J. S. Jenkins, H. R. A. Jones, Y. Pavlenko, D. J. Pinfield, J. R. Barnes, Yu. Lyubchik (2008). Metallicities and activities of southern stars. Astronomy & Astrophysics 485: 571–584 doi:10.1051/0004-6361:20078611
• G. J. Harris, J. Tennyson, B. M. Kaminsky, Ya. V. Pavlenko, H. R. A. Jones (2006). Improved HCN/HNC linelist, model atmospheres and synthetic spectra for WZ Cas. Monthly Notices of the Royal Astronomical Society 367: 400–406 doi:10.1111/j.1365-2966.2005.09960.x
• Ya. V. Pavlenko, A. Magazzu (1996). Theoretical LTE and non-LTE curves of growth for LiI lines in G-M dwarfs and subgiants. Astronomy & Astrophysics 311: 961–967
• Y. V. Pavlenko, R. Rebolo, E. L. Martin, R. J. Garcia Lopez (1995). Formation of lithium lines in very cool dwarfs. Astronomy & Astrophysics 303: 807–818

Books

• Novosyadlyj Bohdan, Pelykh Volodymyr, Shtanov Yuri, Zhuk Alexander. Novosyadlyj, B.; Pelykh, V.; Shtanov, Yu.; Zhuk, A. (2013). Shulga, V. (ed.). Dark energy: observational evidence and theoretical models ( volume 1, in three volumes «Dark energy and dark matter in the Universe») (PDF). doi:10.15407/akademperiodyka.240.380. ISBN 978-966-360-240-0.
• Shulga Valery, Zhdanov Valery, Alexandrov Alexander, Berczik Peter, Pavlenko Elena, Pavlenko Yakiv, Pilyugin Leonid, Tsvetkova Viktoria. Shulga, V.M.; Zhdanov, V.І.; Alexandrov, А.N. (2014). Dark matter: Astrophysical aspects of the problem ( volume 2, in three volumes «Dark energy and dark matter in the Universe») (PDF). doi:10.15407/akademperiodyka.253.356. ISBN 978-966-360-253-0.
• Vavilova Irina, Bolotin Yuri, Boyarsky Aleksej, Danevich Fedor, Kobychev Vyacheslav,Tretyak Volodymyr, Babyk Iuri, Iakubovskyi Dmytro, Hnatyk Bohdan, Sergeev Sergej. Vavilova, I.B.; Bolotin, Yu.L.; Boyarsky, A.M.; Danevich, F.A.; Kobychev, V.V.; Tretyak, V.I.; Babyk, Iu.V.; Iakubovskyi, D.A.; Hnatyk, B.I.; Sergeev, S.G. (2015). Shulga, V.M. (ed.). Dark matter: Observational manifestation and experimental searches (volume 3, in three volumes «Dark energy and dark matter in the Universe») (PDF). doi:10.15407/akademperiodyka.287.356. ISBN 978-966-360-287-5.
• The Main Astronomy Observatory of the National Academy of Sciences of Ukraine: From the Idea of the Foundation to the international Recognition (in Ukrainian). Kyiv: Naukova Dumka, 2024. Third ed. (Monography). via MAO NASU

References

1. ^ Pavlenko, Yakiv V. (25 December 2022). "CURRICULUM VITAE" (TXT). mao.kiev.ua/staff/yp (CV).
2. "Випускники – Кафедра астрономії та фізики космосу" (in Ukrainian). Retrieved 29 October 2024.
3. Лозицький, В.Г. (25–29 May 2015). "М.А. Яковкін — талановитий вчений, вчитель і наставник (до 100-річчя з дня народження)". Астрономія та фізика космосу в Київському університеті [Astronomy and Space Physics at Kyiv University] (PDF) (in Ukrainian). p. 15.
4. Pavlenko, Ya.V. (1983). "Эффекты отклонения от условий локального термодинамического равновесия в атмосферах М-гигантов". fizmathim.com (Manuscript). Kyiv: MAO NASU.
5. Pavlenko, Ya.V. (1984). "Эффекты отклонения от ЛТР в атмосферах М-гигантов". www.etera.ee (Monography) (in Russian). Tallin: Valgus. Retrieved 29 October 2024.
6. "Історична довідка". mao.kiev.ua. Retrieved 29 October 2024.
7. "1.3. Department of Physics of Substellar and Planetary Systems, Main Astronomical Observatory". www.old.nas.gov.ua (in Ukrainian). Retrieved 29 October 2024.
8. "Substellar – Group Members". research.iac.es. Retrieved 29 October 2024.
9. ^ "Yakiv Pavelenko: "OSIRIS is a very useful instrument for the investigation of low mass late-type hosting stars and exoplanets which cannot be observed directly"". Instituto de Astrofísica de Canarias. 14 December 2016. Retrieved 29 October 2024.
10. Damasso, Mario; Del Sordo, Fabio; Anglada-Escudé, Guillem; Giacobbe, Paolo; Sozzetti, Alessandro; Morbidelli, Alessandro; Pojmanski, Grzegorz; Barbato, Domenico; Butler, R. Paul; Jones, Hugh R. A.; Hambsch, Franz-Josef; Jenkins, James S.; López-González, María José; Morales, Nicolás; Peña Rojas, Pablo A. (17 January 2020). "A low-mass planet candidate orbiting Proxima Centauri at a distance of 1.5 AU". Science Advances. 6 (3): eaax7467. Bibcode:2020SciA....6.7467D. doi:10.1126/sciadv.aax7467. ISSN 2375-2548. PMC 6962037. PMID 31998838. Very recently, Pavlenko et al. analyzed the temporal variations of some chromospheric emission lines from the same HARPS optical spectra of our sample.
11. "A new super-Earth may orbit the star next door". Science. 15 January 2020. Retrieved 29 October 2024.
12. Pavlenko, Ya. V.; Suárez Mascareño, A.; Zapatero Osorio, M. R.; Rebolo, R.; Lodieu, N.; Béjar, V. J. S.; González Hernández, J. I.; Mohorian, M. (June 2019). "Temporal changes of the flare activity of Proxima Centauri". Astronomy & Astrophysics. 626: A111. arXiv:1905.07347. Bibcode:2019A&A...626A.111P. doi:10.1051/0004-6361/201834258. ISSN 0004-6361.
13. "Проксима Центавра може бути домом для другої планети [оновлено]". scienceukraine.com (in Ukrainian). 16 January 2020. Archived from the original on 23 September 2020. Автори використали наші результати, отримані у співпраці з групою вчених з Інституту астрофізики на Канарських о-вах, для того, щоб відкинути можливість пояснення довгоперіодичної варіації параметрів спектру Проксими явищами зоряної активності.
14. "Проксима Центавра може бути домівкою для ще однієї землеподібної планети". www.old.nas.gov.ua (in Ukrainian). Retrieved 29 October 2024.
15. "New Tricks from Old Data: Texas Astronomer Uses 25-year-old Hubble Data to Confirm Planet Proxima Centauri c". McDonald Observatory. Retrieved 29 October 2024.
16. Pavlenko, Ya.; Kulyk, I.; Shubina, O.; Vasylenko, M.; Dobrycheva, D.; Korsun, P. (April 2022). "New exocomets of β Pic". Astronomy & Astrophysics. 660: A49. arXiv:2202.13373. Bibcode:2022A&A...660A..49P. doi:10.1051/0004-6361/202142111. ISSN 0004-6361.
17. Lewis, Briley. "Ukrainian Astronomers Discover 'Exocomets' around Another Star". Scientific American. Retrieved 28 October 2024.
18. Prostak, Sergio (18 April 2022). "Ukrainian Astronomers Spot Five New Exocomets around Beta Pictoris | Sci.News". Sci.News: Breaking Science News. Retrieved 28 October 2024.
19. "Prof. Yakiv Pavlenko (Main Astronomical Observatory – National Academy of Sciences of Ukraine)". Instituto de Astrofísica de Canarias. 1 September 2022. Retrieved 29 October 2024.
20. "Викладачі". mao.kiev.ua. Retrieved 29 October 2024. Дисципліни:"Еволюція зір і фізика зоряних атмосфер"
21. ВІДОМОСТІ про самооцінювання освітньої програми (In Ukrainian). Kyiv University, 5 October 2021.
22. "Кінематика і фізика..." mao.kiev.ua. Retrieved 29 October 2024.
23. "Editorial Board | Kinematics and physics of celestial bodies". kfnt.in.ua. ISSN 2663-7715. Retrieved 29 October 2024.
24. "Editorial boad | Kinematics and Physics of Celestial Bodies". www.allertonpress.com. ISSN 1934-8401. Retrieved 29 October 2024.
25. "Yakiv Pavlenko". scienceatrisk.org. 21 June 2023. Retrieved 28 October 2024.
26. Science at Risk!. "About us".
27. Yatskiv, Yaroslav (21 October 2024). "In Memoriam". MAO NANU (Obituary). Пам'яті Якова Володимировича ПАВЛЕНКА
28. "Вісник НАН України, 2010, № 7" (PDF). www.irbis-nbuv.gov.ua. Retrieved 28 October 2024.
29. "Павленко Яків Володимирович". nas.gov.ua (in Ukrainian). Retrieved 29 October 2024.
30. "Про присудження Державних премій України в галузі науки і техніки 2014 року". Офіційний вебпортал парламенту України (in Ukrainian). Retrieved 28 October 2024.
31. "Державні / Відомчі нагороди". mao.kiev.ua. Retrieved 29 October 2024.
32. "Basic Science Book Award". International Academy of Astronautics. 27 November 2019.
33. "IAA Basic Science Book Award". mao.kiev.ua. Retrieved 29 October 2024.
34. "Dark energy and dark matter in the Universe : in three volumes". old.nas.gov.ua. Retrieved 29 October 2024.
35. Shulga Valery, Zhdanov Valery, Alexandrov Alexander, Berczik Peter, Pavlenko Elena, Pavlenko Yakiv, Pilyugin Leonid, Tsvetkova Viktoria. Shulga, V.M.; Zhdanov, V.І.; Alexandrov, А.N. (2014). Dark matter: Astrophysical aspects of the problem ( volume 2, in three volumes Dark energy and dark matter in the Universe) (PDF). doi:10.15407/akademperiodyka.253.356. ISBN 978-966-360-253-0.
36. "Міжнародна академія астронавтики нагородила українських учених за найкращу книгу в галузі фундаментальних наук". www.old.nas.gov.ua (in Ukrainian). Retrieved 29 October 2024.
37. "Українське видання стало «Найкращою книгою в галузі фундаментальних наук»". Читомо (in Ukrainian). 19 December 2016. Retrieved 29 October 2024.

External links

External image
Yakiv Pavlenko during his stay at the Instituto de Astrofísica de Canarias (IAC) (Fall 2022)

• Personal page at MAO NASU
• Yakiv Pavlenko ORCID 0000-0002-7615-4028
• Yakiv Pavlenko publications indexed by the Scopus bibliographic database. (subscription required)
• Yakiv Pavlenko at NASU
• Yakiv Pavlenkoat Ukrainian Virtual Observatory (Archived 10 April 2023 at the Wayback Machine)
• Pavlenko, Yakiv (16 May 2013). Molecular Astrophysics on YouTube. Instituto de Astrofísica de Canarias.
• Pavlenko, Yakiv (18 June 2021). Isotopes in stars (MP4). Instituto de Astrofísica de Canarias.

• 1954 births
• 2024 deaths
• People from Zhytomyr Oblast
• Taras Shevchenko National University of Kyiv alumni
• Ukrainian astronomers
• 20th-century astronomers
• 21st-century astronomers
• Ukrainian astrophysicists
• Laureates of the State Prize of Ukraine in Science and Technology