| A new class of rapidly pulsating star—I. EC 14026—2647, the class prototype D Kilkenny, C Koen, D O'donoghue, RS Stobie Monthly Notices of the Royal Astronomical Society 285 (3), 640-644, 1997 | 547 | 1997 |
| New periodic variables from the Hipparcos epoch photometry C Koen, L Eyer Monthly Notices of the Royal Astronomical Society 331 (1), 45-59, 2002 | 248 | 2002 |
| UBV(RI)CJHK observations of Hipparcos-selected nearby stars C Koen, D Kilkenny, F Van Wyk, F Marang Monthly Notices of the Royal Astronomical Society 403 (4), 1949-1968, 2010 | 225 | 2010 |
| The EC 14026 stars-VIII. PG 1336-018: a pulsating sdB star in an HW Vir-type eclipsing binary D Kilkenny, D O'donoghue, C Koen, AE Lynas-Gray, F Van Wyk Monthly Notices of the Royal Astronomical Society 296 (2), 329-338, 1998 | 174 | 1998 |
| Discovery and analysis of p-mode and g-mode oscillations in the A-type primary of the eccentric binary HD 209295 G Handler, LA Balona, RR Shobbrook, C Koen, A Bruch, ... Monthly Notices of the Royal Astronomical Society 333 (2), 262-278, 2002 | 171 | 2002 |
| The Edinburgh-Cape Blue Object Survey—II. Zone 1—the North Galactic Cap D Kilkenny, D O'Donoghue, C Koen, RS Stobie, A Chen Monthly Notices of the Royal Astronomical Society 287 (4), 867-893, 1997 | 162 | 1997 |
| Structure of herbig aebe disks at the milliarcsecond scale-a statistical survey in the h band using pionier-vlti B Lazareff, JP Berger, J Kluska, JB Le Bouquin, M Benisty, F Malbet, ... Astronomy & Astrophysics 599, A85, 2017 | 159 | 2017 |
| The Edinburgh-Cape Blue Object Survey—I. Description of the survey RS Stobie, D Kilkenny, D O'Donoghue, A Chen, C Koen, DH Morgan, ... Monthly Notices of the Royal Astronomical Society 287 (4), 848-866, 1997 | 147 | 1997 |
| Steps toward determination of the size and structure of the broad-line region in active galactic nuclei. VI. Variability of NGC 3783 from ground-based data GM Stirpe arXiv preprint astro-ph/9311002, 1993 | 139 | 1993 |
| Significance testing of periodogram ordinates C Koen Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 348, Jan. 10, 1990, p …, 1990 | 122 | 1990 |
| Simultaneous optical and TeV gamma-ray observations of the cataclysmic variable AE Aquarii PJ Meintjes, OC De Jager, BC Raubenheimer, HI Nel, AR North, ... Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 434, no. 1, p. 292-305 …, 1994 | 119 | 1994 |
| Variability of η Carinae PA Whitelock, MW Feast, C Koen, G Roberts, BS Carter Monthly Notices of the Royal Astronomical Society 270 (2), 364-372, 1994 | 115 | 1994 |
| Superhumps in cataclysmic binaries. VIII. V1159 Orionis J Patterson, F Jablonski, C Koen, D O'donoghue, DR Skillman Publications of the Astronomical Society of the Pacific 107 (718), 1183, 1995 | 105 | 1995 |
| The EC 14026 stars—X. A multi-site campaign on the sdBV star PG 1605+ 072 D Kilkenny, C Koen, D O'Donoghue, F Wyk, KA Larson, R Shobbrook, ... Monthly Notices of the Royal Astronomical Society 303 (3), 525-534, 1999 | 102 | 1999 |
| On the upper limit on stellar masses in the Large Magellanic Cloud cluster R136 C Koen Monthly Notices of the Royal Astronomical Society 365 (2), 590-594, 2006 | 100 | 2006 |
| The DA+ dMe eclipsing binary EC13471–1258: its cup runneth over… just D O'Donoghue, C Koen, D Kilkenny, RS Stobie, D Koester, MS Bessell, ... Monthly Notices of the Royal Astronomical Society 345 (2), 506-528, 2003 | 90 | 2003 |
| Asteroseismology of the β Cephei star ν Eridani–II. Spectroscopic observations and pulsational frequency analysis C Aerts, P De Cat, G Handler, U Heiter, LA Balona, J Krzesinski, ... Monthly Notices of the Royal Astronomical Society 347 (2), 463-470, 2004 | 87 | 2004 |
| A new class of rapidly pulsating star—II. PB 8783 C Koen, D Kilkenny, D O'donoghue, F Van Wyk, RS Stobie Monthly Notices of the Royal Astronomical Society 285 (3), 645-650, 1997 | 86 | 1997 |
| A new class of rapidly pulsating star—IV. Oscillations in EC 20117—4014 and atmospheric analyses D O'Donoghue, AE Lynas-Gray, D Kilkenny, RS Stobie, C Koen Monthly Notices of the Royal Astronomical Society 285 (3), 657-672, 1997 | 82 | 1997 |
| The analysis of indexed astronomical time Series–II. The O–C (observed–calculated) technique reconsidered F Lombard, C Koen Monthly Notices of the Royal Astronomical Society 263 (2), 309-313, 1993 | 81 | 1993 |
