Jun Yi Koay

18.4k total citations
33 papers, 478 citations indexed

About

Jun Yi Koay is a scholar working on Astronomy and Astrophysics, Nuclear and High Energy Physics and Environmental Engineering. According to data from OpenAlex, Jun Yi Koay has authored 33 papers receiving a total of 478 indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Astronomy and Astrophysics, 18 papers in Nuclear and High Energy Physics and 7 papers in Environmental Engineering. Recurrent topics in Jun Yi Koay's work include Astrophysics and Cosmic Phenomena (18 papers), Radio Astronomy Observations and Technology (12 papers) and Galaxies: Formation, Evolution, Phenomena (8 papers). Jun Yi Koay is often cited by papers focused on Astrophysics and Cosmic Phenomena (18 papers), Radio Astronomy Observations and Technology (12 papers) and Galaxies: Formation, Evolution, Phenomena (8 papers). Jun Yi Koay collaborates with scholars based in United States, Australia and Spain. Jun Yi Koay's co-authors include Jean‐Pierre Macquart, Hong Tat Ewe, Ka S. Lim, Christophe L. Herry, Monique Frize, Hayley Bignall, M. Vestergaard, Cormac Reynolds, B. M. Peterson and B. J. Rickett and has published in prestigious journals such as The Astrophysical Journal, Monthly Notices of the Royal Astronomical Society and IEEE Transactions on Geoscience and Remote Sensing.

In The Last Decade

Jun Yi Koay

30 papers receiving 439 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Jun Yi Koay United States 12 255 126 103 84 56 33 478
S. Karki United States 12 91 0.4× 13 0.1× 24 0.2× 55 0.7× 13 0.2× 27 393
Seth Veitzer United States 9 15 0.1× 67 0.5× 75 0.7× 37 0.4× 54 1.0× 49 318
Wen-Xi Peng China 8 237 0.9× 42 0.3× 40 0.4× 4 0.0× 21 0.4× 30 333
J. K. Alexander Germany 10 245 1.0× 70 0.6× 66 0.6× 50 0.6× 51 0.9× 27 362
R. de los Reyes Germany 9 56 0.2× 76 0.6× 76 0.7× 49 0.6× 88 1.6× 48 319
Elena Seran France 10 277 1.1× 11 0.1× 35 0.3× 13 0.2× 13 0.2× 18 451
Alexander Surkov Russia 9 131 0.5× 164 1.3× 42 0.4× 12 0.1× 42 0.8× 28 329
C. S. J. Pun Hong Kong 15 484 1.9× 312 2.5× 16 0.2× 46 0.5× 38 0.7× 32 704
Christian Fischer Germany 11 254 1.0× 15 0.1× 42 0.4× 20 0.2× 69 1.2× 34 456
Ivanka Pelivan Germany 10 329 1.3× 9 0.1× 94 0.9× 25 0.3× 40 0.7× 28 450

Countries citing papers authored by Jun Yi Koay

Since Specialization
Citations

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

Fields of papers citing papers by Jun Yi Koay

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Jun Yi Koay. 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 Jun Yi Koay. The network helps show where Jun Yi Koay may publish in the future.

Co-authorship network of co-authors of Jun Yi Koay

This figure shows the co-authorship network connecting the top 25 collaborators of Jun Yi Koay. A scholar is included among the top collaborators of Jun Yi Koay 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 Jun Yi Koay. Jun Yi Koay is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Cheng, Xin, et al.. (2024). A Statistical Study of Soft X-Ray Flares on Solar-type Stars. The Astrophysical Journal. 961(1). 130–130. 6 indexed citations
2.
Koay, Jun Yi, Satoki Matsushita, Chorng‐Yuan Hwang, et al.. (2023). Milliarcsecond core size dependence of the radio variability of blazars. Monthly Notices of the Royal Astronomical Society. 525(4). 5105–5120. 2 indexed citations
3.
Vestergaard, M., S. I. Raimundo, Jun Yi Koay, et al.. (2022). Flares in the changing look AGN Mrk 590 – I. The UV response to X-ray outbursts suggests a more complex reprocessing geometry than a standard disc. Monthly Notices of the Royal Astronomical Society. 519(3). 3903–3922. 9 indexed citations
4.
Witzel, Gunther, Gregory D. Martinez, S. P. Willner, et al.. (2021). Rapid Variability of Sgr A* across the Electromagnetic Spectrum. The Astrophysical Journal. 917(2). 73–73. 42 indexed citations
5.
Yang, Jun, Ilse van Bemmel, Z. Paragi, et al.. (2021). A parsec-scale faint jet in the nearby changing-look Seyfert galaxy Mrk 590. Monthly Notices of the Royal Astronomical Society Letters. 502(1). L61–L65. 11 indexed citations
6.
Lo, Wen-Ping, Keiichi Asada, Satoki Matsushita, et al.. (2021). Constraints on the Mass Accretion Rate onto the Supermassive Black Hole of Cygnus A Using the Submillimeter Array. The Astrophysical Journal. 911(1). 35–35. 1 indexed citations
7.
Raimundo, S. I., et al.. (2019). MUSE observations of a changing-look AGN – I. The reappearance of the broad emission lines. Monthly Notices of the Royal Astronomical Society. 486(1). 123–140. 20 indexed citations
8.
Koay, Jun Yi, D. L. Jauncey, T. Hovatta, et al.. (2019). The presence of interstellar scintillation in the 15 GHz interday variability of 1158 OVRO-monitored blazars. Monthly Notices of the Royal Astronomical Society. 489(4). 5365–5380. 6 indexed citations
9.
Koay, Jun Yi, Jean‐Pierre Macquart, D. L. Jauncey, et al.. (2017). The MASIV Survey – IV. Relationship between intra-day scintillation and intrinsic variability of radio AGNs. Monthly Notices of the Royal Astronomical Society. 474(4). 4396–4411. 15 indexed citations
10.
Jauncey, D. L., Hayley Bignall, Lucyna Kedziora‐Chudczer, et al.. (2016). Interstellar Scintillation and Scattering of Micro-arc-second AGN. Galaxies. 4(4). 62–62. 3 indexed citations
11.
Koay, Jun Yi, et al.. (2014). A Dense Medium Microwave Backscattering Model for the Remote Sensing of Oil Palm. IEEE Transactions on Geoscience and Remote Sensing. 53(6). 3250–3259. 26 indexed citations
12.
Koay, Jun Yi & Jean‐Pierre Macquart. (2014). Scatter broadening of compact radio sources by the ionized intergalactic medium: prospects for detection with Space VLBI and the Square Kilometre Array. Monthly Notices of the Royal Astronomical Society. 446(3). 2370–2379. 6 indexed citations
13.
Bignall, Hayley, Jun Yi Koay, J. E. J. Lovell, et al.. (2012). Combining VLBI and MASIV - how intrinsic properties influence interstellar scintillation of AGN. 15–15.
14.
Koay, Jun Yi, Hayley Bignall, Jean‐Pierre Macquart, et al.. (2011). Detection of six rapidly scintillating active galactic nuclei and the diminished variability of J1819+3845. Astronomy and Astrophysics. 534. L1–L1. 10 indexed citations
15.
Koay, Jun Yi, Jean‐Pierre Macquart, B. J. Rickett, et al.. (2011). Interstellar Scintillation as a Cosmological Probe: Prospects and Challenges. Proceedings of the International Astronomical Union. 7(S285). 347–348.
16.
Lim, Ka S., et al.. (2009). High Angular Resolution Measurements of the Monostatic Backscattering Coefficient of Rice Fields. Journal of Electromagnetic Waves and Applications. 23(1). 1–10. 7 indexed citations
17.
Koay, Jun Yi, et al.. (2009). A Microwave Scattering Model for the Remote Sensing of Oil Palm Plantations. PIERS Online. 5(3). 273–276. 4 indexed citations
18.
Koay, Jun Yi, et al.. (2007). Paddy Fields as Electrically Dense Media: Theoretical Modeling and Measurement Comparisons. IEEE Transactions on Geoscience and Remote Sensing. 45(9). 2837–2849. 43 indexed citations
19.
Koay, Jun Yi, et al.. (2007). Effects of Fresnel Corrections in the Scattered Field of General Ellipsoids. PIERS Online. 3(2). 213–214. 1 indexed citations
20.
Koay, Jun Yi, Christophe L. Herry, & Monique Frize. (2005). Analysis of breast thermography with an artificial neural network. PubMed. 3. 1159–1162. 55 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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