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researcher

J. Koay

67 papers hereh-index 3111.6k citations109 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • first author9
  • middle author19
  • last author3

Across the 31 of 67 papers where every author was matched, so the position is known.

fields
  • astro-ph.HE35
  • astro-ph.GA19
  • astro-ph.IM6
  • astro-ph.CO5
  • gr-qc2

identity via Semantic Scholar / OpenAlex

activity
20102026
most citedFirst Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way

1.9k citations · 14.4k across the 67 of their papers we have counts for

collaborators
Showing 2011Show all

2 papers · 1 filter

astro-ph.GA2011★ 16 cited

Detection of Six Rapidly Scintillating AGNs and the Diminished Variability of J1819+3845

J. Y. Koay, H. E. Bignall, J. -P. Macquart +3

The extreme, intra-hour and > 10% rms flux density scintillation observed in AGNs such as PKS 0405-385, J1819+3845 and PKS 1257-326 at cm wavelengths has been attributed to scatter…

astro-ph.CO2011★ 25 cited

Dual-Frequency Observations of 140 Compact, Flat-Spectrum Active Galactic Nuclei for Scintillation-Induced Variability

J. Y Koay, J. -P. Macquart, B. J. Rickett +7

The 4.9 GHz Micro-Arcsecond Scintillation-Induced Variability (MASIV) Survey detected a drop in Interstellar Scintillation (ISS) for sources at redshifts z > 2, indicating an appar…

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Not affiliated with arXiv. Researcher data from Semantic Scholar (ODC-BY) and OpenAlex.