RESEARCH & PUBLICATIONS

Explore the latest academic and research publications from SAAO researchers below.

  • Hanmer, K. Y., Pastor-Marazuela, I, Brink, J., et al.: "Contemporaneous optical-radio observations of a fast radio burst in a close galaxy pair", 2025, MNRAS, 538, 1800-1815 [VIEW]
  • Tranin, Hugo, Blagorodnova, Nadejda, Karambelkar, Viraj, et al.: "Hertzsprung gap stars in nearby galaxies and the quest for luminous red nova progenitors", 2025, A&A, 695 [VIEW]
  • Vardoulaki, E., Backoefer, V., Finoguenov, A., et al.: "The jet paths of radio active galactic nuclei and their cluster weather", 2025, A&A, 695 [VIEW]
  • van der Merwe, C. J. T., Mohamed, S. S., Jose, J., et al.: "3D hydrodynamic simulations of white dwarf-main-sequence star collisions - II. Off-centre collisions", 2025, MNRAS, 538, 1384-1396 [VIEW]
  • Siwak, M., Kospal, A., Abraham, P., et al.: "Gaia20bdk-New FU Ori-type star in the Sh 2-301 star-forming region", 2025, A&A, 695 [VIEW]
  • Laha, Sibasish, Meyer, Eileen T., Sadaula, Dev R., et al.: "Multiwavelength Observations of a Jet Launch in Real Time from the Post-changing-look Active Galaxy 1ES 1927+654", 2025, ApJ, 981 [VIEW]
  • Moore, T., Gillanders, J. H., Nicholl, M., et al.: "SN 2023zaw: The Low-energy Explosion of an Ultrastripped Star", 2025, ApJL, 980 [VIEW]
  • Dastidar, R., Misra, K., Valenti, S., et al.: "SN 2018is: A low-luminosity Type IIP supernova with narrow hydrogen emission lines at early phases", 2025, A&A, 694 [VIEW]
  • Mathys, G., Holdsworth, D. L., Giarrusso, M., et al.: "Super-slowly rotating Ap (ssrAp) stars: Spectroscopic study (vol 691, A186, 2024)", 2025, A&A, 694 [VIEW]
  • Uemura, Makoto, Koga, Yuzuki, Sazaki, Ryosuke, et al.: "Smart Kanata: A framework for autonomous decision-making in rapid follow-up observations of cataclysmic variables", 2025, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN [VIEW]
  • Macdevette, Kelly, Worsley, Jess, Dunsby, Peter, et al.: "A model-independent approach to the study of structure growth in f(R) gravity", 2025, MNRAS, 537, 2471-2495 [VIEW]
  • Kniazev, Alexei Y., Malkov, Oleg, Gorda, Stanislav, et al.: "Long-period Double-lined Eclipsing Binaries: The System V454 Aur with the Secondary Eclipse Caused by the Occultation of the Hotter Component", 2025, RESEARCH IN ASTRONOMY AND ASTROPHYSICS, 25 [VIEW]
  • Rodriguez, Antonio C., El-Badry, Kareem, Hakala, Pasi, et al.: "A Link Between White Dwarf Pulsars and Polars: Multiwavelength Observations of the 9.36-minute Period Variable Gaia22ayj", 2025, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 137 [VIEW]
  • O'Connor, Brendan, Pasham, Dheeraj, Andreoni, Igor, et al.: "Characterization of a Peculiar Einstein Probe Transient EP240408a: An Exotic Gamma-Ray Burst or an Abnormal Jetted Tidal Disruption Event?", 2025, ApJL, 979 [VIEW]
  • Gandhi, P., Borowski, E. S., Byrom, J., et al.: "Rapid mid-infrared spectral timing with JWST: GRS 1915+105 during an MIR-bright and X-ray-obscured state", 2025, MNRAS, 537, 1385-1403 [VIEW]
  • Ranaivomanana, P., Uzundag, M., Johnston, C., et al.: "Variability in hot sub-luminous stars and binaries: Machine-learning analysis of Gaia DR3 multi-epoch photometry", 2025, A&A, 693 [VIEW]
  • Charlton, K. K. L., Delhaize, J., Thorat, K., et al.: "A spatially resolved spectral analysis of giant radio galaxies with MeerKAT", 2025, MNRAS, 537, 272-284 [VIEW]
  • Wong, O. Ivy, Garon, A. F., Alger, M. J., et al.: "Radio Galaxy Zoo data release 1: 100185 radio source classifications from the FIRST and ATLAS surveys", 2025, MNRAS, 536, 3488-3506 [VIEW]
  • Alves, Douglas R., Jenkins, James S., Vines, Jose I., et al.: "NGTS-21b: an inflated Super-Jupiter orbiting a metal-poor K dwarf (vol 517, pg 4447, 2022)", 2025, MNRAS, 536, 3137-3137 [VIEW]
  • Shaw, A. W., Kaplan, D. L., Gandhi, P., et al.: "Calibrating the Clock of JWST", 2025, AJ, 169 [VIEW]
  • Moss, Vanessa A., Venugopal, Ramasamy, Govender, Kevin, et al.: "Accessible hybrid conferences are possible and affordable at large scale", 2025, NATURE ASTRONOMY, 9, 6-10 [VIEW]
  • Chakraborty, Saikat, Louw, Charlotte, Agrawal, A. S., et al.: "A model-independent compact dynamical system formulation for exploring bounce and cyclic cosmological evolutions in f (R) gravity", 2024, EUROPEAN PHYSICAL JOURNAL C, 84 [VIEW]
  • Nardiello, D., Murphy, J. M. Akana, Spinelli, R., et al.: "The GAPS Programme at TNG LXV. Precise density measurement of TOI-1430 b, a young planet with an evaporating atmosphere", 2024, A&A, 693 [VIEW]
  • Govender, Kevin, Takalana, Charles M., Mcbride, Vanessa, et al.: "A historic XXXII IAU General Assembly for a lasting African legacy", 2025, NATURE ASTRONOMY, 9, 2-5 [VIEW]
  • Kurtz, Donald W., Handler, Gerald, Holdsworth, Daniel L., et al.: "HD 60435: the star that stopped pulsating", 2024, MNRAS, 536, 2103-2126 [VIEW]
  • Sun, Luming, Jiang, Ning, Dou, Liming, et al.: "Recurring tidal disruption events a decade apart in IRAS F01004-2237", 2024, A&A, 692 [VIEW]
  • Mroz, Przemek, Krol, Krzysztof, Szegedi, Helene, et al.: "Millinovae: A New Class of Transient Supersoft X-Ray Sources without a Classical Nova Eruption", 2024, ApJL, 977 [VIEW]
  • Stoppa, F., Groot, P. J., Stuik, R., et al.: "Automated detection of satellite trails in ground-based observations using U-Net and Hough transform", 2024, A&A, 692 [VIEW]
  • Jennings, Fred J., Babul, Arif, Dave, Romeel, et al.: "HYENAS: X-ray bubbles and cavities in the intragroup medium", 2024, MNRAS, 536, 145-165 [VIEW]
  • Balona, Luis A.: "Pulsation in Hot Main-Sequence Stars: Comparison of Observations with Models", 2024, UNIVERSE, 10 [VIEW]
  • Wu, Zexuan, Dong, Subo, Merand, A., et al.: "First Resolution of Microlensed Images of a Binary-lens Event", 2024, ApJ, 977 [VIEW]
  • Gutierrez, Claudia P., Mattila, Seppo, Lundqvist, Peter, et al.: "CSS 161010: A Luminous Fast Blue Optical Transient with Broad Blueshifted Hydrogen Lines", 2024, ApJ, 977 [VIEW]
  • Dobson, Matthew M., Schwamb, Megan E., Fitzsimmons, Alan, et al.: "Analyzing the Onset of Cometary Activity by the Jupiter-family Comet 2023 RN3", 2024, AJ, 168 [VIEW]
  • Dunsby, Peter K. S., Luongo, Orlando, Muccino, Marco, et al.: "Double polytropic cosmic acceleration from the Murnaghan equation of state", 2024, PHYSICS OF THE DARK UNIVERSE, 46 [VIEW]
  • Chrimes, A. A., Coppejans, D. L., Jonker, P. G., et al.: "Multi-wavelength observations of the luminous fast blue optical transient AT 2023fhn: Up to ∼200 days post-explosion", 2024, A&A, 691 [VIEW]
  • Corbet, Robin H. D., Ballhausen, Ralf, Becker, Peter A., et al.: "Sharp Periodic Flares and Long-term Variability in the High-mass X-Ray Binary XTE J1829-098 from RXTE PCA, Swift BAT, and MAXI Observations", 2024, ApJ, 976 [VIEW]
  • Mathys, G., Holdsworth, D. L., Giarrusso, M., et al.: "Super-slowly rotating Ap (ssrAp) stars: Spectroscopic study", 2024, A&A, 691 [VIEW]
  • Jones, E., Smith, B., Dave, R., et al.: "Simba-EoR: early galaxy formation in the simba simulation including a new sub-grid interstellar medium model", 2024, MNRAS, 535, 1293-1314 [VIEW]
  • Wang, Z. -Y., Pastorello, A., Maeda, K., et al.: "Massive stars exploding in a He-rich circumstellar medium X. Flash spectral features in the Type Ibn SN 2019cj and observations of SN2018jmt", 2024, A&A, 691 [VIEW]
  • Dorsch, M., Jeffery, C. S., Monai, A. Philip, et al.: "Discovery of three magnetic helium-rich hot subdwarfs with SALT", 2024, A&A, 691 [VIEW]
  • Koen, Chris, Kniazev, Alexei Y.: "WISE J152614.95-111326.4, an unusual variable star", 2024, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA, 41 [VIEW]
  • Groot, P. J., Bloemen, S., Vreeswijk, P. M., et al.: "The BlackGEM Telescope Array. I. Overview", 2024, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 136 [VIEW]
  • Salcedo, Ciro, Mori, Kaya, Bridges, Gabriel, et al.: "A Broadband X-Ray Investigation of Fast-spinning Intermediate Polar CTCV J2056-3014", 2024, ApJ, 976 [VIEW]
  • Sneppen, Albert, Watson, Darach, Damgaard, Rasmus, et al.: "Emergence hour-by-hour of r-process features in the kilonova AT2017gfo", 2024, A&A, 690 [VIEW]
  • van der Merwe, C. J. T., Mohamed, S. S., Jose, J., et al.: "3D hydrodynamic simulations of white dwarf-main-sequence star collisions - I. Head-on collisions", 2024, MNRAS, 534, 3637-3653 [VIEW]
  • Veresvarska, M., Scaringi, S., Knigge, C., et al.: "Discovery of persistent quasi-periodic oscillations in accreting white dwarfs: a new link to X-ray binaries", 2024, MNRAS, 534, 3087-3103 [VIEW]
  • Amery, G., Dunsby, P. K., Sherif, A. M.: "Gradient conformal stationarity and the CMC condition in LRS spacetimes", 2024, CLASSICAL AND QUANTUM GRAVITY, 41 [VIEW]
  • Zelati, F. Coti, de Martino, D., Dhillon, V. S., et al.: "Short-term variability of the transitional pulsar candidate CXOU J110926.4-650224 from X-rays to infrared", 2024, A&A, 690 [VIEW]
  • Tampo, Yusuke, Kato, Taichi, Isogai, Keisuke, et al.: "MASTER OT J030227.28+191754.5: An unprecedentedly energetic dwarf nova outburst", 2024, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 76, 1228-1245 [VIEW]
  • Gaudin, T. M., Coe, M. J., Kennea, J. A., et al.: "CXOU J005245.0-722844: discovery of a Be star/white dwarf binary system in the SMC via a very fast, super-Eddington X-ray outburst event", 2024, MNRAS, 534, 1937-1948 [VIEW]
  • Kypriotakis, John Andrew, Maharana, Siddharth, Anche, Ramya M., et al.: "Wide Area Linear Optical Polarimeter North instrument I: optical design, filter design, and calibration", 2024, JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS, 10 [VIEW]
  • de Wet, Simon, Laskar, Tanmoy, Groot, Paul J., et al.: "A Millimeter Rebrightening in GRB 210702A", 2024, ApJ, 974 [VIEW]
  • Zimmerman, Dhruv T., Narayanan, Desika, Whitaker, Katherine E., et al.: "Tracing the History of Obscured Star Formation with the SIMBA Cosmological Galaxy Evolution Simulation", 2024, ApJ, 973 [VIEW]
  • Pelaez-Torres, A., Esparza-Borges, E., Palle, E., et al.: "Validation of up to seven TESS planet candidates through multi-colour transit photometry using MuSCAT2 data", 2024, A&A, 690 [VIEW]
  • Ross, Kathryn, Hurley-Walker, Natasha, Galvin, Timothy James, et al.: "GaLactic and Extragalactic All-sky Murchison Widefield Array eXtended (GLEAM-X) survey II: Second Data Release", 2024, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA, 41 [VIEW]
  • Abbott, T. M. C., Acevedo, M., Aguena, M., et al.: "The Dark Energy Survey: Cosmology Results with ∼1500 New High-redshift Type Ia Supernovae Using the Full 5 yr Data Set", 2024, ApJL, 973 [VIEW]
  • Schimd, Carlo, Kraljic, Katarina, Dave, Romeel, et al.: "Large-scale geometry and topology of gas fields: Effects of AGN and stellar feedback", 2024, A&A, 689 [VIEW]
  • Dunsby, Peter K. S., Koh, Seoktae, Sherif, Abbas M.: "Causal dynamics of null horizons under linear perturbations", 2024, PHYSICAL REVIEW D, 110 [VIEW]
  • Kouch, Pouya M., Liodakis, Ioannis, Middei, Riccardo, et al.: "IXPE observation of PKS 2155-304 reveals the most highly polarized blazar", 2024, A&A, 689 [VIEW]
  • Albert, A., Alves, S., Andre, M., et al.: "Results of the follow-up of ANTARES neutrino alerts", 2024, JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS [VIEW]
  • Garg, Prerak, Narayanan, Desika, Sanders, Ryan L., et al.: "Theoretical Strong-line Metallicity Diagnostics for the JWST Era", 2024, ApJ, 972 [VIEW]
  • Hatamkhani, N., Kraan-Korteweg, R. C., Blyth, S. L., et al.: "The K s -band Luminosity Function of the Rich Cluster VC04 in the Vela Supercluster", 2024, ApJ, 972 [VIEW]
  • Gasealahwe, K. V. S., Monageng, I. M., Fender, R. P., et al.: "Radio observations of the 2022 outburst of the transitional Z-Atoll source XTE J1701-462", 2024, MNRAS, 533, 1800-1807 [VIEW]
  • Orio, M., Melichercik, M., Ciroi, S., et al.: "V407 Lup, an intermediate polar nova", 2024, MNRAS, 533, 1541-1549 [VIEW]
  • Alqasim, A., Grieves, N., Rosario, N. M., et al.: "TOI-757 b: an eccentric transiting mini-Neptune on a 17.5-d orbit", 2024, MNRAS, 533, 1-26 [VIEW]
  • Painter, S., Aydi, E., Motsoaledi, M., et al.: "Spectro-photometric follow-up of the outbursting AM CVn system ASASSN-21br", 2024, MNRAS, 532, 4205-4216 [VIEW]
  • Campbell, Mariam, Daniel, Richard, Dunsby, Peter, et al.: "Bouncing cosmologies in the presence of a Dirac-Born-Infeld field", 2024, PHYSICAL REVIEW D, 110 [VIEW]
  • Kelley, M. S., Reddy, V., Bauer, J., et al.: "THE 2023 DZ2 IAWN PLANETARY DEFENSE CAMPAIGN: A ∼30-METER DIAMETER AUBRITE", 2024, METEORITICS & PLANETARY SCIENCE, 59, A223-A223
  • Greenwell, Claire L., Klindt, Lizelke, Lansbury, George B., et al.: "The NuSTAR Serendipitous Survey: The 80 Month Catalog and Source Properties of the High-energy Emitting Active Galactic Nucleus and Quasar Population", 2024, ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 273 [VIEW]
  • Schroeder, Genevieve, Rhodes, Lauren, Laskar, Tanmoy, et al.: "A Radio Flare in the Long-lived Afterglow of the Distant Short GRB 210726A: Energy Injection or a Reverse Shock from Shell Collisions?", 2024, ApJ, 970 [VIEW]
  • Wu, Zexuan, Dong, Subo, Yi, Tuan, et al.: "Gaia22dkvLb: A Microlensing Planet Potentially Accessible to Radial-velocity Characterization", 2024, AJ, 168 [VIEW]
  • Zieba, Sebastian, Zwintz, Konstanze, Kenworthy, Matthew, et al.: "The β Pictoris b Hill sphere transit campaign: II. Searching for the signatures of the β Pictoris exoplanets through time delay analysis of the δ Scuti pulsations", 2024, A&A, 687 [VIEW]
  • Nedkova, Kalina, V, Haeussler, Boris, Marchesini, Danilo, et al.: "Bulge plus disc decomposition of HFF and CANDELS galaxies: UVJ diagrams and stellar mass-size relations of galaxy components at 0.2 ≤ z ≤ 1.5", 2024, MNRAS, 532, 3747-3777 [VIEW]
  • Mishenina, T., Pignatari, M., Usenko, I., et al.: "Peculiarities of the chemical enrichment of metal-poor stars in the Milky Way Galaxy", 2024, A&A, 687 [VIEW]
  • Barnard, Joleen, van Soelen, B., Acharya, S., et al.: "The optical spectropolarimetric behaviour of a selection of high-energy blazars", 2024, MNRAS, 532, 1991-2005 [VIEW]
  • Mimouni, Jamal, Diaby, Kassamba Abdel Aziz, Menberu, Kirubel, et al.: "Astronomy Communication Across Africa: The IAU National Outreach Coordinators", 2024, CAPJOURNAL, 6-14
  • Kubheka, Duduzile, Macfarlane, Sally: "Explained in 60 seconds: Community engagement at the XXXII IAU General Assembly", 2024, CAPJOURNAL, 4-5
  • Dobson, Matthew M., Schwamb, Megan E., Fitzsimmons, Alan, et al.: "The Discovery and Evolution of a Possible New Epoch of Cometary Activity by the Centaur (2060) Chiron", 2024, PLANETARY SCIENCE JOURNAL, 5 [VIEW]
  • Adams, Elisabeth R., Jackson, Brian, Sickafoose, Amanda A., et al.: "Doomed Worlds. I. No New Evidence for Orbital Decay in a Long-term Survey of 43 Ultrahot Jupiters", 2024, PLANETARY SCIENCE JOURNAL, 5 [VIEW]
  • Thao, Pa Chia, Mann, Andrew W., Barber, Madyson G., et al.: "TESS Hunt for Young and Maturing Exoplanets (THYME). X. A Two-planet System in the 210 Myr MELANGE-5 Association", 2024, AJ, 168 [VIEW]
  • Schulte, Jack, Rodriguez, Joseph E., Bieryla, Allyson, et al.: "Migration and Evolution of giant ExoPlanets (MEEP). I. Nine Newly Confirmed Hot Jupiters from the TESS Mission", 2024, AJ, 168 [VIEW]
  • Gillanders, J. H., Rhodes, L., Srivastav, S., et al.: "Discovery of the Optical and Radio Counterpart to the Fast X-Ray Transient EP 240315a", 2024, ApJL, 969 [VIEW]
  • Bachelet, E., Rota, P., Bozza, V., et al.: "A Close Binary Lens Revealed by the Microlensing Event Gaia20bof", 2024, AJ, 168 [VIEW]
  • Ok, Samet, Schwope, Axel, Buckley, David A. H., et al.: "Discovery of the magnetic cataclysmic variable XMM J152737.4-205305.9 with a deep eclipse-like feature", 2024, A&A, 686 [VIEW]
  • Stoppa, F., Johnston, C., Cator, E., et al.: "FINKER: Frequency Identification through Nonparametric KErnel Regression in astronomical time series", 2024, A&A, 686 [VIEW]
  • Chakraborty, Saikat, Dunsby, Peter K. S., Goswami, Rituparno, et al.: "A dynamical systems formulation for inhomogeneous LRS-II spacetimes", 2024, JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS [VIEW]
  • Reddy, Vishnu, Kelley, Michael S., Benner, Lance, et al.: "2023 DZ2 Planetary Defense Campaign", 2024, PLANETARY SCIENCE JOURNAL, 5 [VIEW]
  • Singh, Koshvendra, Ninan, Joe P., Romanova, Marina M., et al.: "Accretion Funnel Reconfiguration during an Outburst in a Young Stellar Object: EX Lupi", 2024, ApJ, 968 [VIEW]
  • Shen, Yue, Grier, Catherine J., Horne, Keith, et al.: "The Sloan Digital Sky Survey Reverberation Mapping Project: Key Results", 2024, ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 272 [VIEW]
  • Hori, Yasunori, Fukui, Akihiko, Hirano, Teruyuki, et al.: "The Discovery and Follow-up of Four Transiting Short-period Sub-Neptunes Orbiting M Dwarfs", 2024, AJ, 167 [VIEW]
  • Proshina, Irina S., Sil'chenko, Olga K., Kniazev, Alexei Yu: "Spectral study of star-forming rings in S0 galaxies of Dorado group - NGC 1533 and NGC 1543", 2024, MNRAS, 531, 2448-2461 [VIEW]
  • Ochmann, M. W., Kollatschny, W., Probst, M. A., et al.: "The transient event in NGC 1566 from 2017 to 2019", 2024, A&A, 686 [VIEW]
  • Malyali, A., Rau, A., Bonnerot, C., et al.: "Transient fading X-ray emission detected during the optical rise of a tidal disruption event", 2024, MNRAS, 531, 1256-1275 [VIEW]
  • Sahoo, S. K., Baran, A. S., Nemeth, P., et al.: "Mode identification and period fitting in six pulsating hot subdwarfs", 2024, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA, 41 [VIEW]
  • Robinson, James E., Fitzsimmons, Alan, Young, David R., et al.: "Main-belt and Trojan asteroid phase curves from the ATLAS survey", 2024, MNRAS, 531, 304-326 [VIEW]
  • Goedhart, S., Cotton, W. D., Camilo, F., et al.: "The SARAO MeerKAT 1.3 GHz Galactic Plane Survey", 2024, MNRAS, 531, 649-681 [VIEW]
  • Malkov, Oleg, Kniazev, Alexey, Gorda, Stanislav: "Searching for wide binary stars with non-coeval components in the northern sky", 2024, JOURNAL OF ASTROPHYSICS AND ASTRONOMY, 45 [VIEW]
  • Luo, Xiong, Wang, Huiyuan, Cui, Weiguang, et al.: "ELUCID. VIII. Simulating the Coma Galaxy Cluster to Calibrate Model and Understand Feedback", 2024, ApJ, 966 [VIEW]
  • Hord, Benjamin J., Kempton, Eliza M-R, Evans-Soma, Thomas M., et al.: "Identification of the Top TESS Objects of Interest for Atmospheric Characterization of Transiting Exoplanets with JWST", 2024, AJ, 167 [VIEW]
  • O'Brien, Sean M., Schwamb, Megan E., Gill, Samuel, et al.: "Planet Hunters NGTS: New Planet Candidates from a Citizen Science Search of the Next Generation Transit Survey Public Data", 2024, AJ, 167 [VIEW]