2-6 September 2024
CJD Bonn Castell
Europe/Berlin timezone
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Contribution

Developments in Long-Wavelength Southern-Hemisphere VLBI in the Context of the TANAMI Program

Speakers

  • Dr. Jompoj WONGPHECHAUXSORN

Primary authors

Co-authors

Content

The TANAMI program has been using the Southern-hemisphere LBA array and associated telescopes to monitor compact relativistic jets in active galactic nuclei (AGN) at X- and K-band frequencies since 2007 with a focus on bright sources (~1Jy) and synergies with the Fermi gamma-ray space telescope. In preparation for the upcoming era of the Cherenkov Telescope Array (CTA) and to exploit the capabilities of new radio-astronomical facilities operating at low frequencies, S-band observations of fainter AGN jets have become an integral part of the TANAMI program since 2020. The SKA-MPG telescope is a prototype antenna of the South African Square Kilometre Array (SKA)-MID component, located in the Karoo desert, South Africa. This telescope will play a crucial role in future VLBI observations, including those by the EVN, as one of the longest baseline stations, thereby improving spatial resolution and providing scheduling flexibility. In this presentation, I will discuss recent developments of the VLBI mode for the SKA-MPG telescope, including first fringe detections and observations of TeV gamma-ray emitting AGN. Adding the SKA-MPG telescope into the array used for TANAMI VLBI observations is an important step in order to access the faint AGN jet population with SKA-VLBI.