O. Sergijenko

1.9k total citations · 1 hit paper
18 papers, 156 citations indexed

About

O. Sergijenko is a scholar working on Astronomy and Astrophysics, Oceanography and Nuclear and High Energy Physics. According to data from OpenAlex, O. Sergijenko has authored 18 papers receiving a total of 156 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Astronomy and Astrophysics, 7 papers in Oceanography and 7 papers in Nuclear and High Energy Physics. Recurrent topics in O. Sergijenko's work include Cosmology and Gravitation Theories (12 papers), Geophysics and Gravity Measurements (7 papers) and Galaxies: Formation, Evolution, Phenomena (7 papers). O. Sergijenko is often cited by papers focused on Cosmology and Gravitation Theories (12 papers), Geophysics and Gravity Measurements (7 papers) and Galaxies: Formation, Evolution, Phenomena (7 papers). O. Sergijenko collaborates with scholars based in Ukraine, Italy and Germany. O. Sergijenko's co-authors include B. Novosyadlyj, Ruth Durrer, O. Torbaniuk, Sébastien Renaux‐Petel, José María Ezquiaga, Vincent Vennin, Theodoros Papanikolaou, David Wands, Cristian Joana and Antonio Riotto and has published in prestigious journals such as Monthly Notices of the Royal Astronomical Society, Journal of Cosmology and Astroparticle Physics and Physical review. D. Particles, fields, gravitation, and cosmology.

In The Last Decade

O. Sergijenko

15 papers receiving 152 citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Primordial black holes and their gravitational-wave signatures

2025 32 citations Valerio De Luca, José María Ezquiaga et al. PubMed profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
O. Sergijenko Ukraine	7	153	101	21	11	4	18	156
R. Valentim Brazil	5	123 0.8×	60 0.6×	13 0.6×	9 0.8×	6 1.5×	10	127
M. Farhang Iran	7	132 0.9×	92 0.9×	13 0.6×	6 0.5×	10 2.5×	15	136
F. Paci Italy	8	210 1.4×	104 1.0×	38 1.8×	13 1.2×	6 1.5×	9	213
A. Marchini Italy	5	182 1.2×	144 1.4×	12 0.6×	20 1.8×	8 2.0×	5	187
C. Umiltà Italy	6	205 1.3×	152 1.5×	26 1.2×	6 0.5×	4 1.0×	7	217
A. Marcos-Caballero Spain	6	172 1.1×	89 0.9×	15 0.7×	5 0.5×	10 2.5×	10	175
S. Henrot–Versillé France	7	177 1.2×	158 1.6×	12 0.6×	6 0.5×	9 2.3×	15	222
F. K. Hansen Italy	4	99 0.6×	36 0.4×	19 0.9×	14 1.3×	5 1.3×	4	104
R. Calderón France	7	124 0.8×	74 0.7×	8 0.4×	7 0.6×	7 1.8×	9	132
Llibert Aresté Saló Spain	10	254 1.7×	178 1.8×	47 2.2×	17 1.5×	4 1.0×	25	258

Countries citing papers authored by O. Sergijenko

Since Specialization

Citations

This map shows the geographic impact of O. Sergijenko's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by O. Sergijenko with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites O. Sergijenko more than expected).

Fields of papers citing papers by O. Sergijenko

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by O. Sergijenko. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by O. Sergijenko. The network helps show where O. Sergijenko may publish in the future.

Co-authorship network of co-authors of O. Sergijenko

This figure shows the co-authorship network connecting the top 25 collaborators of O. Sergijenko. A scholar is included among the top collaborators of O. Sergijenko based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with O. Sergijenko. O. Sergijenko is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

18 of 18 papers shown

Luca, Valerio De, José María Ezquiaga, Gabriele Franciolini, et al.. (2025). Primordial black holes and their gravitational-wave signatures. PubMed. 28(1). 1–1. 32 indexed citations breakdown →

Akhmetov, V. S., et al.. (2025). Spatial orientation and shape of the velocity ellipsoids of the Gaia DR3 giants and sub-giants in the Galactic plane. Monthly Notices of the Royal Astronomical Society. 542(3). 2542–2559.

Vavilova, I. B., et al.. (2024). AN ADVANCED APPROACH TO THE DEFINITION OF THE “MILKY WAY GALAXIES-ANALOGUES”. Kosmìčna nauka ì tehnologìâ. 30(4). 81–90. 2 indexed citations

Michailidis, Miltiadis, D. Malyshev, Fabio Iocco, et al.. (2023). Prospects for annihilating dark matter from M31 and M33 observations with the Cherenkov Telescope Array. Journal of Cosmology and Astroparticle Physics. 2023(8). 73–73. 1 indexed citations

Burelli, Irene, et al.. (2023). Performance study update of observations in divergent mode for the Cherenkov Telescope Array. arXiv (Cornell University). 840–840.

Satalecka, K., A. M. Brown, O. Sergijenko, et al.. (2019). Neutrino Target of Opportunity program of the Cherenkov Telescope Array. Proceedings of 36th International Cosmic Ray Conference — PoS(ICRC2019). 784–784. 4 indexed citations

Sergijenko, O., et al.. (2017). Molecules in the early universe. 33(6). 3–16. 1 indexed citations

Novosyadlyj, B., et al.. (2017). Dynamics of expansion of the Universe in models with the additional coupling between dark energy and dark matter. Journal of Physical Studies. 21(3). 1 indexed citations

Sergijenko, O. & B. Novosyadlyj. (2015). Sound speed of scalar field dark energy: Weak effects and large uncertainties. Physical review. D. Particles, fields, gravitation, and cosmology. 91(8). 17 indexed citations

10.

Novosyadlyj, B., et al.. (2014). Constraining the dynamical dark energy parameters: Planck-2013 vs WMAP9. Journal of Cosmology and Astroparticle Physics. 2014(5). 30–30. 16 indexed citations

11.

Sergijenko, O., et al.. (2013). Composite spectra of quasars with different UV spectral index. Monthly Notices of the Royal Astronomical Society. 437(4). 3343–3361. 6 indexed citations

12.

Sergijenko, O., et al.. (2013). Improved technique for quasar composite spectra generation. 7–7.

13.

Novosyadlyj, B., et al.. (2012). Do the cosmological observational data prefer phantom dark energy?. Physical review. D. Particles, fields, gravitation, and cosmology. 86(8). 40 indexed citations

14.

Sergijenko, O., Ruth Durrer, & B. Novosyadlyj. (2011). Observational constraints on scalar field models of dark energy with barotropic equation of state. Journal of Cosmology and Astroparticle Physics. 2011(8). 4–4. 12 indexed citations

15.

Novosyadlyj, B., et al.. (2010). Cosmological Tests for Minimally Coupled Perturbed Dark Energy. AIP conference proceedings. 55–62. 1 indexed citations

16.

Novosyadlyj, B., et al.. (2010). Properties and uncertainties of scalar field models of dark energy with barotropic equation of state. Physical review. D. Particles, fields, gravitation, and cosmology. 82(10). 13 indexed citations

17.

Sergijenko, O. & B. Novosyadlyj. (2009). Perturbed dark energy: Classical scalar field versus tachyon. Physical review. D. Particles, fields, gravitation, and cosmology. 80(8). 5 indexed citations

18.

Novosyadlyj, B. & O. Sergijenko. (2009). Evolution of scalar perturbations in cosmology with quintessential dark energy. Journal of Physical Studies. 13(1). 5 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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