As African equity investing becomes more mainstream, investors are likely to gravitate toward
an equity index family for benchmarking purposes. This article describes the challenges …

MeerKAT’s large number (64) of 13.5 m diameter antennas, spanning 8 km with a densely
packed 1 km core, create a powerful instrument for wide-area surveys, with high sensitivity …

The inner∼ 200 pc region of the Galaxy contains a 4 million M⊙ supermassive black hole (SMBH),
significant quantities of molecular gas, and star formation and cosmic-ray energy …

New radio (MeerKAT and Parkes) and X-ray (XMM-Newton, Swift, Chandra, and NuSTAR)
observations of PSR J1622–4950 indicate that the magnetar, in a quiescent state since at …

We describe system verification tests and early science results from the pulsar processor (PTUSE)
developed for the newly commissioned 64-dish SARAO MeerKAT radio telescope in …

The Galactic Centre contains a supermassive black hole with a mass of four million Suns 1
within an environment that differs markedly from that of the Galactic disk. Although the black …

We investigate the clustering of H i-selected galaxies in the Arecibo Legacy Fast ALFA
Survey (ALFALFA) and compare results with those obtained for the H i Parkes All Sky Survey (…

We use the Millennium simulation to probe the correlation between cluster velocities and
their shapes and the consequences for measurements of the kinetic Sunyaev–Zeldovich (kSZ) …

The construction of the seven-dish Karoo Array Telescope (KAT-7) array in the Karoo region
of the Northern Cape in South Africa was intended primarily as an engineering prototype for …

We present MeerKAT neutral hydrogen (H I) observations of the Fornax A group, which is
likely falling into the Fornax cluster for the first time. Our H I image is sensitive to 1.4 × 10 19 …