4-8 July 2016
Kramer Law building
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=10&confId=86">The Proceedings of SAIP2016</a> published on 24 December 2017

Investigating gamma-ray fluxes from globular clusters

7 Jul 2016, 10:20
20m
4B (Kramer Law building)

4B

Kramer Law building

UCT Middle Campus Cape Town
Oral Presentation Track D1 - Astrophysics Astrophysics (2)

Speaker

Ms HAMBELELENI NDIYAVALA (NORTH-WEST UNIVERSITY)

Level for award<br>&nbsp;(Hons, MSc, <br> &nbsp; PhD, N/A)?

MSc

Apply to be<br> considered for a student <br> &nbsp; award (Yes / No)?

Yes

Please indicate whether<br>this abstract may be<br>published online<br>(Yes / No)

Yes

Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?

Yes

Main supervisor (name and email)<br>and his / her institution

Paulus Kruger
ppauluskruger@gmail.com
North-West University

Abstract content <br> &nbsp; (Max 300 words)<br><a href="http://events.saip.org.za/getFile.py/access?resId=0&materialId=0&confId=34" target="_blank">Formatting &<br>Special chars</a>

(For the H.E.S.S. Collaboration)
Globular clusters (GCs) are large collections of old stars that are orbiting the core of a galaxy. Our Milky Way Galaxy has about 160 known GCs, with perhaps more to be discovered. We analysed 20 GCs observed by the H.E.S.S. very-high-energy (>100 GeV) gamma-ray telescopes. The detection of Terzan 5 was confirmed and flux upper limits were obtained for the remaining 19 sources. We accumulated the necessary parameters for each GC and ran a numerical model that predicts the inverse Compton gamma-ray flux expected from each cluster. The five most promising GCs for future observations by Cherenkov Telescope Array (CTA) will be highlighted.

Primary author

Ms HAMBELELENI NDIYAVALA (NORTH-WEST UNIVERSITY)

Co-authors

Prof. Christo Venter (North-west University, Potchefstroom Campus) Dr Paulus Kruger (NORTH-WEST UNIVERSITY)

Presentation Materials

Peer reviewing

Paper