Article
Astronomy & Astrophysics
L. Dunn, A. Melatos, C. M. Espinoza, D. Antonopoulou, R. Dodson
Summary: A study is conducted to better understand the small glitches in Vela pulsar using high-cadence observations from the Mount Pleasant Observatory. A hidden Markov model is utilized to search for previously undetected glitches and estimates their parameters. The study also sets upper limits on the sizes of missed glitches, providing crucial information for studying small glitches.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
C. M. Espinoza, D. Antonopoulou, R. Dodson, M. Stepanova, A. Scherer
Summary: This study explores the occurrence and sizes of small glitches in the Vela pulsar, finding two previously unreported glitch events. Additionally, numerous small glitch events were identified, contributing to the pulsar's timing noise. The Vela pulsar shows an under-abundance of small glitches compared to other glitching pulsars, with a smooth spin-down process affected by continuous small step-like changes.
ASTRONOMY & ASTROPHYSICS
(2021)
Article
Astronomy & Astrophysics
Aurelien Sourie, Nicolas Chamel
Summary: The recent study adapts the Newtonian treatment of mutual-friction force in neutron superfluid to the general-relativistic framework, showing how the motion of individual vortices can be matched to the global dynamics of the star. The necessary dynamical equations for realistic simulations of rotating neutron stars in full general relativity are derived, with a focus on the role of vortex pinning on global dynamics.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
K. H. Thong, A. Melatos, L. Drummond
Summary: In this study, the coupled, time-dependent Gross-Pitaevskii and Ginzburg-Landau equations are solved simultaneously to investigate the equilibrium state and dynamics of a neutron superfluid and proton superconductor. The results reveal the complex vortex and flux-tube tangles in the presence of proton feedback. Different types of motion during spin-down are observed, depending on the angle between rotation and magnetic axes. The study evaluates the impact of proton feedback on the deceleration of the crust.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
L. Dunn, M. E. Lower, A. Melatos
Summary: The study reveals the degeneracy in certain pulsar timing experiments, highlighting the importance of factors such as frequency jumps and glitch models. While synthetic data and local estimates help alleviate biases, challenges remain in accurately determining glitch sizes. Additionally, hidden Markov models provide unbiased multiple glitch solutions but may struggle with recovering correct glitch sizes.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
L. Dunn, A. Melatos, S. Suvorova, W. Moran, R. J. Evans, S. Oslowski, M. E. Lower, M. Bailes, C. Flynn, V Gupta
Summary: This paper presents a systematic and semi-automated search for pulsar glitches in the first UTMOST public data release. Using a hidden Markov model, glitches are detected through Bayesian model selection without much human intervention. Injection studies are used to determine the upper limits on the size of undetected glitches.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
U. Geppert, R. Basu, D. Mitra, G. Melikidze, M. Szkudlarek
Summary: Studies have shown that the radio emission in many pulsars exhibits quasi-periodic sudden changes, which are likely caused by Hall drift disrupting the magnetic field at the polar cap surface.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
Partha Bagchi, Biswanath Layek, Anjishnu Sarkar, Ajit M. Srivastava
Summary: This study focuses on the detailed modification of pulses from a pulsar caused by density fluctuations induced by phase transition. The researchers calculate pulse modifications using numerical methods and provide analytical estimates for arbitrary values of the density fluctuations. They find specific patterns in the perturbed pulses, which can be observed as modulations over long time periods. The decay of these modulations provides valuable information about the relaxation of density fluctuations in the pulsar.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Marco Antonelli, Avishek Basu, Brynmor Haskell
Summary: Young pulsars exhibit deviations from regular spin-down due to impulsive glitches and timing noise, which have implications for understanding the superfluid properties of neutron stars and pose challenges for high-precision pulsar timing and gravitational wave experiments. We propose a minimal stochastic model that accounts for fluctuations in both internal and external torques to describe the spin-down process of multicomponent neutron stars. By analyzing this model, we can analytically determine the power spectral density and timing noise strength, and compare the results with observations from pulsar timing campaigns. This framework provides theoretical insights into interpreting the observed features of timing noise in single pulsars and across the pulsar population.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
S. K. Lander, P. Haensel, B. Haskell, J. L. Zdunik, M. Fortin
Summary: The study explores the thermal and magnetic field structure of a late-stage proto-neutron star, establishing a simplified equation of state for hot neutron stars and solving the stellar equilibrium equations numerically. The ellipticity increases with temperature for a fixed magnetic field strength, and the Keplerian velocity is considerably lower for hotter stars. Magnetic fields stronger than around 10^14 G have qualitatively similar equilibrium states in both hot and cold neutron stars, with the poloidal field component dominating over the toroidal one.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
Q. Liu, W. Wang, X. Chen, Y. Z. Ding, F. J. Lu, L. M. Song, J. L. Qu, S. Zhang, S. N. Zhang
Summary: We conducted a detailed study of Vela X-1, a high-mass X-ray binary, using observations from Insight-HXMT in 2019 and 2020. Our analysis focused on timing analysis and spectral studies, including pulse phase-resolved spectroscopy. The cyclotron line energy was found to be 21-27 keV for the fundamental and 43-50 keV for the first harmonic. The study showed that the fundamental line energy correlates with X-ray luminosity, indicating that Vela X-1 is in the sub-critical accreting regime. The pulse phase-resolved spectroscopy revealed significant variability in both the cyclotron resonant scattering feature and continuum parameters, as well as long-term variations in the absorption column density over the pulse phase, possibly suggesting the presence of a clumpy wind structure near the neutron star.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Xiongbang Yang, Gang Cao
Summary: The paper investigates the high-energy emission properties of pulsars using numerical simulations and computing magnetospheres, finding that the FIDO model can reproduce the observed characteristics successfully.
ASTROPHYSICAL JOURNAL
(2021)
Article
Astronomy & Astrophysics
A. Issifu, F. M. da Silva, D. P. Menezes
Summary: This study constructs models describing hybrid neutron stars consisting of nucleons and exotic baryons using a density-dependent quark model and a relativistic model. The study determines the quark-hadron phase transition in stellar matter through the structure and properties of the hybrid neutron star matter.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
P. Eggenberger, F. D. Moyano, J. W. den Hartogh
Summary: This study investigates the impact of the magnetic Tayler instability on the angular momentum transport in stars, and tests different versions of the Tayler-Spruit dynamo by comparing them with asteroseismic measurements. It is found that the original TS dynamo provides insufficient coupling in certain cases, but a calibrated version can better reproduce the observed rotation rates of stars.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Astronomy & Astrophysics
Abdujappar Rusul, Xiao-Ping Zheng, Ali Esamdin, Liang Guo, Li-Xin Xia
Summary: The study reveals that the polar-cap parameters of intermittent pulsars almost reach their maximum values, consistent with the main prediction of the pulsar polar-cap theory regarding the breaking of radio emission. Additionally, intermittent pulsars are distributed near the dipole death line in the P-(P)over dot diagram, in line with their emission features and calculated polar-cap parameters.
ASTROPHYSICAL JOURNAL
(2021)
Article
Astronomy & Astrophysics
K. Knowles, W. D. Cotton, L. Rudnick, F. Camilo, S. Goedhart, R. Deane, M. Ramatsoku, M. F. Bietenholz, M. Bruggen, C. Button, H. Chen, J. O. Chibueze, T. E. Clarke, F. de Gasperin, R. Ianjamasimanana, G. I. G. Jozsa, M. Hilton, K. C. Kesebonye, K. Kolokythas, R. C. Kraan-Korteweg, G. Lawrie, M. Lochner, S. I. Loubser, P. Marchegiani, N. Mhlahlo, K. Moodley, E. Murphy, B. Namumba, N. Oozeer, V. Parekh, D. S. Pillay, S. S. Passmoor, A. J. T. Ramaila, S. Ranchod, E. Retana-Montenegro, L. Sebokolodi, S. P. Sikhosana, O. Smirnov, K. Thorat, T. Venturi, T. D. Abbott, R. M. Adam, G. Adams, M. A. Aldera, E. F. Bauermeister, T. G. H. Bennett, W. A. Bode, D. H. Botha, A. G. Botha, L. R. S. Brederode, S. Buchner, J. P. Burger, T. Cheetham, D. I. L. de Villiers, M. A. Dikgale-Mahlakoana, L. J. du Toit, S. W. P. Esterhuyse, G. Fadana, B. L. Fanaroff, S. Fataar, A. R. Foley, D. J. Fourie, B. S. Frank, R. R. G. Gamatham, T. G. Gatsi, M. Geyer, M. Gouws, S. C. Gumede, I. Heywood, M. J. Hlakola, A. Hokwana, S. W. Hoosen, D. M. Horn, J. M. G. Horrell, B. V. Hugo, A. R. Isaacson, J. L. Jonas, J. D. B. Jordaan, A. F. Joubert, R. P. M. Julie, F. B. Kapp, V. A. Kasper, J. S. Kenyon, P. P. A. Kotze, A. G. Kotze, N. Kriek, H. Kriel, V. K. Krishnan, T. W. Kusel, L. S. Legodi, R. Lehmensiek, D. Liebenberg, R. T. Lord, B. M. Lunsky, K. Madisa, L. G. Magnus, J. P. L. Main, A. Makhaba, S. Makhathini, J. A. Malan, J. R. Manley, S. J. Marais, M. D. J. Maree, A. Martens, T. Mauch, K. McAlpine, B. C. Merry, R. P. Millenaar, O. J. Mokone, T. E. Monama, M. C. Mphego, W. S. New, B. Ngcebetsha, K. J. Ngoasheng, M. T. Ockards, A. J. Otto, A. A. Patel, A. Peens-Hough, S. J. Perkins, N. M. Ramanujam, Z. R. Ramudzuli, S. M. Ratcliffe, R. Renil, A. Robyntjies, A. N. Rust, S. Salie, N. Sambu, C. T. G. Schollar, L. C. Schwardt, R. L. Schwartz, M. Serylak, R. Siebrits, S. K. Sirothia, M. Slabber, L. Sofeya, B. Taljaard, C. Tasse, A. J. Tiplady, O. Toruvanda, S. N. Twum, T. J. van Balla, A. van der Byl, C. van der Merwe, C. L. van Dyk, V. Van Tonder, R. Van Wyk, A. J. Venter, M. Venter, M. G. Welz, L. P. Williams, B. Xaia
Summary: MeerKAT, with its large number of antennas and high sensitivity, is a powerful instrument for wide-area surveys in astronomy. The MeerKAT Galaxy Cluster Legacy Survey provides detailed observations of 115 galaxy clusters, revealing information on their structures and surrounding environments. Initial results from the survey show insights into star formation rates and radio emission within galaxy clusters.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Astronomy & Astrophysics
I Heywood, I Rammala, F. Camilo, W. D. Cotton, F. Yusef-Zadeh, T. D. Abbott, R. M. Adam, G. Adams, M. A. Aldera, K. M. B. Asad, E. F. Bauermeister, T. G. H. Bennett, H. L. Bester, W. A. Bode, D. H. Botha, A. G. Botha, L. R. S. Brederode, S. Buchner, J. P. Burger, T. Cheetham, D. I. L. de Villiers, M. A. Dikgale-Mahlakoana, L. J. du Toit, S. W. P. Esterhuyse, B. L. Fanaroff, S. February, D. J. Fourie, B. S. Frank, R. R. G. Gamatham, M. Geyer, S. Goedhart, M. Gouws, S. C. Gumede, M. J. Hlakola, A. Hokwana, S. W. Hoosen, J. M. G. Horrell, B. Hugo, A. I. Isaacson, G. I. G. Jozsa, J. L. Jonas, A. F. Joubert, R. P. M. Julie, F. B. Kapp, J. S. Kenyon, P. P. A. Kotze, N. Kriek, H. Kriel, V. K. Krishnan, R. Lehmensiek, D. Liebenberg, R. T. Lord, B. M. Lunsky, K. Madisa, L. G. Magnus, O. Mahgoub, A. Makhaba, S. Makhathini, J. A. Malan, J. R. Manley, S. J. Marais, A. Martens, T. Mauch, B. C. Merry, R. P. Millenaar, N. Mnyandu, O. J. Mokone, T. E. Monama, M. C. Mphego, W. S. New, B. Ngcebetsha, K. J. Ngoasheng, M. T. Ockards, N. Oozeer, A. J. Otto, S. S. Passmoor, A. A. Patel, A. Peens-Hough, S. J. Perkins, A. J. T. Ramaila, N. M. R. Ramanujam, Z. R. Ramudzuli, S. M. Ratcliffe, A. Robyntjies, S. Salie, N. Sambu, C. T. G. Schollar, L. C. Schwardt, R. L. Schwartz, M. Serylak, R. Siebrits, S. K. Sirothia, M. Slabber, O. M. Smirnov, L. Sofeya, B. Taljaard, C. Tasse, A. J. Tiplady, O. Toruvanda, S. N. Twum, T. J. van Balla, A. van der Byl, C. van der Merwe, V. Van Tonder, R. Van Wyk, A. J. Venter, M. Venter, B. H. Wallace, M. G. Welz, L. P. Williams, B. Xaia
Summary: This article presents a new survey of the Galactic center conducted with the South African MeerKAT radio telescope. The results reveal new features in the region, including new supernova remnant candidates and nonthermal filament complexes.
ASTROPHYSICAL JOURNAL
(2022)
Article
Astronomy & Astrophysics
S. Johnston, A. Parthasarathy, R. A. Main, J. P. Ridley, B. S. Koribalski, M. Bailes, S. J. Buchner, M. Geyer, A. Karastergiou, M. J. Keith, M. Kramer, M. Serylak, R. M. Shannon, R. Spiewak, V. Venkatraman Krishnan
Summary: This study observed pulsars in the Magellanic Clouds using the MeerKAT telescope and provided polarization profiles and measurements of the magnetic field. The results showed that the pulsars in the Magellanic Clouds have narrower profiles compared to their Galactic counterparts, but this is due to selection effects in surveys rather than any intrinsic difference.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
M. T. Miles, R. M. Shannon, M. Bailes, D. J. Reardon, S. Buchner, H. Middleton, R. Spiewak
Summary: This study presents baseband radio observations of the millisecond pulsar J1909-3744 using the MeerKAT telescope, revealing strong evidence of pulse mode changing and an improvement in timing precision. The impact of this improvement on gravitational wave background searches is discussed.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Correction
Engineering, Aerospace
Johan Petrus Burger, Renier Siebrits, Romeo Reginald Gunther Gamatham, Geomarr van Tonder, Grant Adams, Vereese van Tonder, Zwivhuya Ramudzuli, Sarah Buchner, Michel Abgrall, Pierre Uhrich, Daniele Rovera
JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS
(2022)
Article
Engineering, Aerospace
Johan Petrus Burger, Renier Siebrits, Romeo Reginald Gunther Gamatham, Geomarr van Tonder, Grant Adams, Vereese van Tonder, Zwivhuya Ramudzuli, Sarah Buchner, Michel Abgrall, Pierre Uhrich, Daniele Rovera
Summary: This article discusses the details of the MeerKAT radio telescope's time and frequency reference subsystem, which enables accurate sampling through low-jitter, low-drift microwave clock signals. The subsystem supports different frequency bands and includes a cable measurement system for timing calibration. It also implements a time scale and timing bulletins for users. The subsystem's unique features enable high-fidelity sampling and stable tied array configuration for long-term timing and transient science.
JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS
(2022)
Article
Astronomy & Astrophysics
M. Serylak, V. Venkatraman Krishnan, P. C. C. Freire, T. M. Tauris, M. Kramer, M. Geyer, A. Parthasarathy, M. Bailes, M. C. i Bernadich, S. Buchner, M. Burgay, F. Camilo, A. Karastergiou, M. E. Lower, A. Possenti, D. J. Reardon, R. M. Shannon, R. Spiewak, I. H. Stairs, W. van Straten
Summary: This study aims to measure the masses of the stars in the PSR J0955-6150 system to test different hypotheses for the formation of eMSPs. The researchers carried out timing observations of the pulsar and obtained precise measurements of various parameters. The results provide important evidence for understanding the origin of eMSPs.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Astronomy & Astrophysics
A. Corongiu, V. Venkatraman Krishnan, P. C. C. Freire, M. Kramer, A. Possenti, M. Geyer, A. Ridolfi, F. Abbate, M. Bailes, E. D. Barr, V. Balakrishnan, S. Buchner, D. J. Champion, W. Chen, B. V. Hugo, A. Karastergiou, A. G. Lyne, R. N. Manchester, P. V. Padmanabh, A. Parthasarathy, S. M. Ransom, J. M. Sarkissian, M. Serylak, W. van Straten
Summary: PSR J1910-5959A is a binary millisecond pulsar in orbit around a helium white dwarf companion. By accurately measuring the parameters of this system, including orbital inclination, masses of the stars, and changes in orbital parameters, it has been confirmed to belong to NGC 6752. This study is significant for investigating alternative models of white dwarf structure and cooling.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Astronomy & Astrophysics
M. T. Miles, R. M. Shannon, M. Bailes, D. J. Reardon, M. J. Keith, A. D. Cameron, A. Parthasarathy, M. Shamohammadi, R. Spiewak, W. van Straten, S. Buchner, F. Camilo, M. Geyer, A. Karastergiou, M. Kramer, M. Serylak, G. Theureau, V. Venkatraman Krishnan
Summary: We present the first 2.5 yr of data from the MeerKAT Pulsar Timing Array (MPTA), aiming to measure pulse arrival times from 88 pulsars with the goal of contributing to the study of gravitational waves. The data release includes arrival times, noise models, and timing archives for 78 pulsars with high precision. The study also introduces a novel method for clock correction waveform recovery solely from pulsar timing residuals.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
A. Faustmann, L. Schwardt, V van Tonder, J. Gilmore, S. Buchner
Summary: By studying the self-noise of the autocorrelation function of six radio pulsars, deviations from expected forms and the observed distribution of intensities were found. A mixture model, comprising a Gaussian process and a Bernoulli-sampled Gaussian process, was proposed to explain these deviations and produce the observed distribution.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
F. Abbate, A. Possenti, A. Ridolfi, V. Venkatraman Krishnan, S. Buchner, E. D. Barr, M. Bailes, M. Kramer, A. Cameron, A. Parthasarathy, W. van Straten, W. Chen, F. Camilo, P. Padmanabh, S. A. Mao, P. C. C. Freire, S. M. Ransom, L. Vleeschower, M. Geyer, L. Zhang
Summary: We studied the polarization profiles of 22 pulsars in the globular cluster 47 Tucanae using MeerKAT radio telescope and reported precise measurements of dispersion measure (DM) and rotation measure (RM). The structure function of DM shows evidence of turbulence in the gas in the cluster, while the structure function of RM does not. Future pulsar discoveries in the cluster could help confirm the presence and localize the turbulence.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
C. J. Clark, R. P. Breton, E. D. Barr, M. Burgay, T. Thongmeearkom, L. Nieder, S. Buchner, B. Stappers, M. Kramer, W. Becker, M. Mayer, A. Phosrisom, A. Ashok, M. C. Bezuidenhout, F. Calore, I Cognard, P. C. C. Freire, M. Geyer, J-M Griessmeier, R. Karuppusamy, L. Levin, P. Padmanabh, A. Possenti, S. Ransom, M. Serylak, V. Venkatraman Krishnan, L. Vleeschower, J. Behrend, D. J. Champion, W. Chen, D. Horn, E. F. Keane, L. Kuenkel, Y. Men, A. Ridolfi, V. S. Dhillon, T. R. Marsh, M. A. Papa
Summary: By conducting targeted survey using the Transients and Pulsars with MeerKAT (TRAPUM) Large Survey Project, we discovered 9 new millisecond pulsars, including 8 in binary systems. We obtained timing solutions for two pulsars, enabling the detection of gamma-ray pulsations. X-ray emission from PSR J1803-6707 was detected in the eROSITA all-sky survey data.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
B. Posselt, A. Karastergiou, S. Johnston, A. Parthasarathy, L. S. Oswald, R. A. Main, A. Basu, M. J. Keith, X. Song, P. Weltevrede, C. Tiburzi, M. Bailes, S. Buchner, M. Geyer, M. Kramer, R. Spiewak, V. Venkatraman Krishnan
Summary: This study presents the largest survey of average profiles of radio pulsars to date, using the same telescope and data reduction software. The results show a significant correlation between the radio luminosity and the spin-down energy of pulsars, contradicting previous assumptions about population synthesis studies. Furthermore, the findings suggest that magnetic dipole braking may not be the dominant factor in the evolution of pulsar rotation.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
X. Song, P. Weltevrede, A. Szary, G. Wright, M. J. Keith, A. Basu, S. Johnston, A. Karastergiou, R. A. Main, L. S. Oswald, A. Parthasarathy, B. Posselt, M. Bailes, S. Buchner, B. Hugo, M. Serylak
Summary: We present a study on the subpulse modulation properties of 1198 pulsars using the Thousand-Pulsar-Array programme on MeerKAT. We find that about 35% of the pulsars analyzed exhibit drifting subpulses, which become more pronounced towards the death line. Furthermore, our study reveals the detailed evolution of drifting subpulses across the overall pulsar population, with the modulation period following a V-shaped evolution with respect to the characteristic age.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Astronomy & Astrophysics
R. Spiewak, M. Bailes, M. T. Miles, A. Parthasarathy, D. J. Reardon, M. Shamohammadi, R. M. Shannon, N. D. R. Bhat, S. Buchner, A. D. Cameron, F. Camilo, M. Geyer, S. Johnston, A. Karastergiou, M. Keith, M. Kramer, M. Serylak, W. VanStraten, G. Theureau, V. Venkatraman Krishnan
Summary: MeerTime is a five-year survey project that aims to time pulsars with MeerKAT. Through an initial census of 189 pulsars visible to MeerKAT, we have obtained various parameters that provide important resources for population studies. Currently, MeerTime has made significant achievements and is of great significance for global efforts to detect the gravitational wave background.
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA
(2022)