Leonid S. Pilyugin
National Academy of Sciences of Ukraine
69 Papers
412 Citations
Leonid S. Pilyugin is an academic researcher from National Academy of Sciences of Ukraine. The author has contributed to research in topics: Galaxy & Metallicity. The author has an hindex of 22, co-authored 65 publications. Previous affiliations of Leonid S. Pilyugin include Jilin University & Heidelberg University.
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Papers
The Oxygen Abundance in Our Galaxy
TL;DR: In this paper, a compilation of published spectra of Galactic H ii regions with available diagnostic [OIII] λ 4363 line information has been carried out, and the oxygen abundance at the solar galactocentric distance traced by those H ii regions is in agreement with the oxygen abundances in the interstellar medium in the solar vicinity derived with high precision from the interstellar absorption lines towards stars.
ESO 546-G34: the most-metal-poor, low surface brightness galaxy?
TL;DR: In this paper, a re-analysis of spectroscopic data for 23 H-II regions in 12 blue, metal-poor, low surface brightness galaxies (LSBGs), taking advantage of recent developments in calibrating strong-line methods.
Two types of distribution of the gas velocity dispersion of MaNGA galaxies
TL;DR: In this paper, the authors analyzed the distribution of the gas velocity dispersion σ across the images of 1146 MaNGA galaxies and found that there are two types of distributions of the dispersion across images of galaxies: (i) the distributions of 909 galaxies show a radial symmetry with or without the σ enhancement at the center (R distribution) and (ii) distributions with a band of enhanced σ along the minor axis in images of 159 galaxies with or with the ε enhancing at the centre (B distribution).
Relationship between intensities of strong emission lines in the spectra of H II regions and their chemical compositions
TL;DR: In this paper, three sets of strong lines are considered, namely, A (R PsyNet 3, R PsyNet 2, NSourceFile 2, S PsyNet 2 lines), B (RSourceFile 3, N PsyNet 2 and S PsyNet 3 lines), and C (R� 2 and N� 2 lines).
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Metal-THINGS: On the metallicity and ionization of ULX sources in NGC 925.
Maritza A. Lara-López,Igor Zinchenko,Leonid S. Pilyugin,Madusha Gunawardhana,Omar López-Cruz,Shane O'Sullivan,Anna Feltre,Margarita Rosado,Mónica Sánchez-Cruces,Jacopo Chevallard,Maria Emilia De Rossi,Sami Dib,Jacopo Fritz,Isaura Fuentes-Carrera,Luis E. Garduño,Edo Ibar +15 more
TL;DR: In this article, an analysis of the optical properties of three Ultra Luminous X-ray (ULX) sources identified in NGC 925 is presented, while the spaxel associated with ULX-2 had a low S/N, which prevented its analysis.
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