R. Bachev

3.3k citations

43 papers · 763 indexed · h-index 13

Impact in

Astronomy and Astrophysics top 5%
- Galaxies: Formation, Evolution, Phenomena
- Astrophysical Phenomena and Observations
- Radio Astronomy Observations and Technology
- Gamma-ray bursts and supernovae
- Astrophysics and Star Formation Studies
- Stellar, planetary, and galactic studies
Instrumentation top 5%
- Astronomy and Astrophysical Research

Papers in ⓘ

Astronomy and Astrophysics 37
- Astrophysical Phenomena and Observations 17
- Radio Astronomy Observations and Technology 14
- Galaxies: Formation, Evolution, Phenomena 11
- Gamma-ray bursts and supernovae 8
Nuclear and High Energy Physics 23
- Astrophysics and Cosmic Phenomena 22
- Neutrino Physics Research 7
- Dark Matter and Cosmic Phenomena 5

Co-authors: J. W. Sulentic (5 shared papers)P. Marziani (6 shared papers)C. A. Negrete (3 shared papers)D. Dultzin (3 shared papers)A. Strigachev (24 shared papers)R. Zamanov (6 shared papers)D. Dultzin‐Hacyan (2 shared papers)M. Calvani (2 shared papers)
Journals: Monthly Notices of the Royal Astronomical Society (15 papers)The Astrophysical Journal (4 papers)The Astrophysical Journal Supplement Series (2 papers)Monthly Notices of the Royal Astronomical Society Letters (1 paper)Universe (1 paper)
Partner nations: Bulgaria United States China

In The Last Decade

R. Bachev

40 papers receiving 728 citations

Peers

Countries citing papers authored by R. Bachev

Since Specialization

Citations

This map shows the geographic impact of R. Bachev'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 R. Bachev with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites R. Bachev more than expected).

Fields of papers citing papers by R. Bachev

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by R. Bachev. 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 R. Bachev. The network helps show where R. Bachev may publish in the future.

Co-authors

The 25 scholars most cited alongside R. Bachev, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with R. Bachev Line = papers co-authored together R. Bachev links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 43 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Civλ1549 as an Eigenvector 1 Parameter for Active Galactic Nuclei The Astrophysical Journal ·J. W. Sulentic, R. Bachev, P. Marziani, C. A. Negrete, D. Dultzin	2007	137
2	An Optical Spectroscopic Atlas of Low‐Redshift Active Galactic Nuclei The Astrophysical Journal Supplement Series ·P. Marziani, J. W. Sulentic, R. Zamanov, M. Calvani, D. Dultzin‐Hacyan, R. Bachev, T. Zwitter	2003	126
3	Average Ultraviolet Quasar Spectra in the Context of Eigenvector 1: A Baldwin Effect Governed by the Eddington Ratio? The Astrophysical Journal ·R. Bachev, P. Marziani, J. W. Sulentic, R. Zamanov, M. Calvani, D. Dultzin‐Hacyan	2004	73
4	Broad-line region physical conditions along the quasar eigenvector 1 sequence Monthly Notices of the Royal Astronomical Society ·P. Marziani, J. W. Sulentic, C. A. Negrete, D. Dultzin, S. Zamfir, R. Bachev	2010	59
5	Multiband optical variability of three TeV blazars on diverse time-scales Monthly Notices of the Royal Astronomical Society ·Alok C. Gupta, Aditi Agarwal, Jai Bhagwan, A. Strigachev, R. Bachev, E. Semkov, Haritma Gaur, G. Damljanović, O. Vince, Paul J. Wiita	2016	36
6	Gamma-ray and optical oscillations of 0716+714, MRK 421, and BL Lacertae Springer Link (Chiba Institute of Technology) ·A. Sandrinelli, S. Covino, A. Treves, E. Lindfors, C. M. Raiteri, K. Nilsson, L. O. Takalo, R. Reinthal, A. Berdyugin, V. Fallah Ramazanı, V. Kadenius, T. Tuominen, P. Kehusmaa, R. Bachev, A. Strigachev	2017	33
7	Nature of intranight optical variability of BL Lacertae Monthly Notices of the Royal Astronomical Society ·Haritma Gaur, Alok C. Gupta, R. Bachev, A. Strigachev, E. Semkov, M. Böttcher, Paul J. Wiita, J. A. de Diego, Minfeng Gu, Hengxiao Guo, Ravi Joshi, B. Mihov, N. Palma, S. Peneva, Akshayan Rajasingam, L. Slavcheva‐Mihova	2015	29
8	Multiband optical variability of the blazar S5 0716+714 in outburst state during 2014–2015 Monthly Notices of the Royal Astronomical Society ·Aditi Agarwal, Alok C. Gupta, R. Bachev, A. Strigachev, E. Semkov, Paul J. Wiita, J. H. Fan, U. S. Pandey, S. Boeva, B. Spassov	2015	26
9	Short-term optical variability of high-redshift quasi-stellar objects Monthly Notices of the Royal Astronomical Society ·R. Bachev, A. Strigachev, E. Semkov	2005	22
10	X-ray, UV, and optical time delays in the bright Seyfert galaxy Ark 120 with co-ordinated Swift and ground-based observations Monthly Notices of the Royal Astronomical Society ·A. Lobban, S. Zoła, Urszula Pajdosz-Śmierciak, V. Braito, E. Nardini, Gopal Bhatta, A. Markowitz, R. Bachev, D. Carosati, D. B. Caton, G. Damljanović, B. Dȩbski, J. Haislip, Shaoming Hu, Vladimir Kouprianov, J. Krzesiński, D. Porquet, F. Pozo Núñez, J. N. Reeves, D. Reichart	2020	19
11	Multiband optical–NIR variability of blazars on diverse time-scales Monthly Notices of the Royal Astronomical Society ·Aditi Agarwal, Alok C. Gupta, R. Bachev, A. Strigachev, E. Semkov, Paul J. Wiita, M. Böttcher, S. Boeva, Haritma Gaur, Minfeng Gu, S. Peneva, S. Ibryamov, U. S. Pandey	2015	18
12	Studying X-ray reprocessing and continuum variability in quasars: PG 1211+143 Monthly Notices of the Royal Astronomical Society ·R. Bachev, D. Grupe, S. Boeva, E. Ovcharov, A. Valcheva, E. Semkov, Ts. B. Georgiev, Luigi Gallo	2009	16
13	Kepler light-curve analysis of the blazar W2R 1926+42 Monthly Notices of the Royal Astronomical Society ·P. Mohan, Alok C. Gupta, R. Bachev, A. Strigachev	2015	14
14	Optical and radio variability of BL Lacertae Astronomy and Astrophysics ·Haritma Gaur, Alok C. Gupta, R. Bachev, A. Strigachev, E. Semkov, Paul J. Wiita, A. E. Volvach, Minfeng Gu, Aditi Agarwal, I. Agudo, M. F. Aller, H. D. Aller, O. M. Kurtanidze, S. O. Kurtanidze, A. Lähteenmäki, S. Peneva, M. G. Nikolashvili, L. A. Sigua, M. Tornikoski, L. N. Volvach	2015	12
15	Optical flickering of the recurrent nova RS Ophiuchi: amplitude–flux relation☆ Monthly Notices of the Royal Astronomical Society ·R. Zamanov, G. Latev, S. Boeva, J. L. Sokoloski, K. A. Stoyanov, R. Bachev, B. Spassov, G. Nikolov, V. Golev, S. Ibryamov	2015	12
16	Optical Variability of TeV Blazars on long time-scales Monthly Notices of the Royal Astronomical Society ·Haritma Gaur, Alok C. Gupta, R. Bachev, A. Strigachev, E. Semkov, Paul J. Wiita, O. M. Kurtanidze, A. Darriba, G. Damljanović, R. G. Chanishvili, S. Ibryamov, S. O. Kurtanidze, M. G. Nikolashvili, L. A. Sigua, O. Vince	2019	12
17	Characterizing the Emission Region Properties of Blazars The Astrophysical Journal Supplement Series ·J. H. Fan, Hubing Xiao, Wenxin Yang, Lixia Zhang, A. Strigachev, R. Bachev, J. H. Yang	2023	11
18	UBVRIobservations of the flickering of RS Ophiuchi at quiescence Monthly Notices of the Royal Astronomical Society ·R. Zamanov, S. Boeva, R. Bachev, M. F. Bode, D. Dimitrov, K. A. Stoyanov, A. Gomboc, S. V. Tsvetkova, L. Slavcheva‐Mihova, B. Spasov, K. Koleva, B. Mihov	2010	11
19	VRI comparison stars for selected active galaxies Astronomy and Astrophysics Supplement Series ·R. Bachev, A. Strigachev, V. Dimitrov	2000	11
20	Quasar optical variability: searching for interband time delays Springer Link (Chiba Institute of Technology) ·R. Bachev	2008	11

About R. Bachev

R. Bachev is a scholar working on Astronomy and Astrophysics, Nuclear and High Energy Physics, Instrumentation, Geophysics and Computational Mechanics, having authored 43 papers that have together received 763 indexed citations. Recurring topics across this work include Astrophysics and Cosmic Phenomena (22 papers), Astrophysical Phenomena and Observations (17 papers), Radio Astronomy Observations and Technology (14 papers), Galaxies: Formation, Evolution, Phenomena (11 papers), Gamma-ray bursts and supernovae (8 papers), Neutrino Physics Research (7 papers), Dark Matter and Cosmic Phenomena (5 papers) and Astronomy and Astrophysical Research (4 papers). The work is most often cited by research in Astronomy and Astrophysics (727 citations), Instrumentation (107 citations), Nuclear and High Energy Physics (366 citations), Atomic and Molecular Physics, and Optics (32 citations) and Geophysics (10 citations). R. Bachev has collaborated with scholars based in Bulgaria, United States and China. Frequent co-authors include J. W. Sulentic, P. Marziani, C. A. Negrete, D. Dultzin, A. Strigachev, R. Zamanov, D. Dultzin‐Hacyan, M. Calvani, E. Semkov and T. Zwitter. Their work appears in journals such as Monthly Notices of the Royal Astronomical Society, The Astrophysical Journal, The Astrophysical Journal Supplement Series, Monthly Notices of the Royal Astronomical Society Letters and Universe.

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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