Contributed Talk - Splinter Compact
Tuesday, 12 September 2023, 14:25 (H 2036)
Wide-band observations of pulsar radio emission
Jacob Cardinal Tremblay, Ramesh Karuppusamy, Michael Kramer, Andrei Kazantsev, Yunpeng Men
Max Planck Institute for Radio Astronomy
Pulsar radio emission is currently poorly understood, especially the wide-band coherent emission process. To arrive at a consistent theory which explains all observed emission features, other phenomena such as moding, nulling, and profile evolution must be examined in the wide-band context. For this purpose a radio receiver capable of receiving wide-band radio signals such as the Ultra-BroadBand receiver (UBB) is needed. The UBB is a novel receiver currently in commissioning for use on the Effelsberg 100 meter radio telescope. The UBB is capable of detecting radio emission in the frequency ranges from 1.3 GHz to 6 GHz. This bandwidth is larger than typical receivers which is particularly interesting for studies which analyze properties that vary in frequency. Understanding the frequency dependent properties will not only help in understanding emission mechanisms of pulsars but can also lead to better timing precision for pulsar timing array experiments such as the EPTA.