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Faculty of Natural Sciences@PUK

Faculty of Natural Sciences@PUK

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Recent Submissions

The vela pulsar: results from the first year of Fermi LAT observations

Abdo, A.A.; Ackermann, M.; Ajello, M.; Allafort, A.; Venter, C. (IOP Publishing, 2010)

We report on analysis of timing and spectroscopy of the Vela pulsar using 11 months of observations with the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope. The intrinsic brightness of Vela at GeV energies ...
The first Fermi large area telescope catalog of gamma-ray pulsars

Abdo, A.A.; Ackermann, M.; Ajello, M; Atwood, W.B.; Venter, C. (American Astronomical Society, 2010)

The dramatic increase in the number of known gamma-ray pulsars since the launch of the Fermi Gamma-ray Space Telescope (formerly GLAST) offers the first opportunity to study a sizable population of these high-energy objects. ...
The status of H.E.S.S. and CTA, and their role in a multiwavelength context

Venter, C. (Working Group on Space Sciences in Africa, 2012)

The High Energy Stereoscopic System (H.E.S.S.) is a world-class experiment located in Namibia and consists of an array of four 13-m telescopes which investigate the non-thermal universe in the 100 GeV to 100 TeV energy ...
The second Fermi large area telescope catalog of gamma-ray pulsars

Abdo, A.A.; Ajello, M.; Allafort, A.; Baldini, L.; Venter, C. (American Astronomical Society, 2013)

This catalog summarizes 117 high-confidence ≥0.1 GeV gamma-ray pulsar detections using three years of data acquired by the Large Area Telescope (LAT) on the Fermi satellite. Half are neutron stars discovered using LAT data ...
UV Spectrophotometric method for the identification and solubility determination of nevirapine

Stieger, N.; Liebenberg, W.; Wessels, J.C. (Govi Verlag, 2009)

An UV spectrophotometric method was developed for the quantitativedetermination of nevirapine in water,methanol and 0.1NHCl. It was found that qualitativedetermination is also possible, due to a peak-shift observedwith ...
Evaluation of charge density and the theory for calculating membrane potential for a nano-composite nylon-6,6 nickel phosphate membrane

Arfin, T.; Falch, A.; Kriek, R.J. (Royal Society of Chemistry, 2012)

A new crystalline organic–inorganic nano-composite nylon-6,6 nickel phosphate membrane was synthesised subsequent to which (a) the physico-chemical characteristics of the membrane were evaluated employing FTIR, SEM, EDX, ...