GBT24B-039

Cyclic Spectroscopy of Three Pulsars with Considerable Pulse Broadening

Abstract

We propose observing three pulsars with significant scatter broadening in their pulse profiles to acquire baseband data for later processing using cyclic spectroscopy (CS). These observations will serve to explore CS's ability to effectively correct for scattering delays in pulsar timing data, as well as provide an opportunity to perform highly detailed studies of the ISM with the improved frequency resolution CS offers. Recent work has demonstrated that CS can be used as powerful tool for studying the interstellar medium and shows promise for recovering scattering delays, although these studies have mostly been limited to campaigns at low observing frequencies and studies of the millisecond pulsar PSR B1937+21. By examining how well CS is able to recover pulse broadening functions of pulsars in addition to PSR B1937+21, we can gain confidence in how viable this technique may be for recovering scattering delays across many pulsars used for pulsar timing. We request to observe each source with the L-band receiver as described in the proposal, acquiring baseband data in 2.5-hour sessions for each pulsar for a total of 90 hours.

Investigators

Name	Institution
Jacob Turner *	Green Bank Observatory; West Virginia University
Ryan Lynch	Green Bank Observatory
Natalia Lewandowska	New York at Oswego, State University of
Timothy Dolch	Cornell University; Oberlin College; Hillsdale College
Abra Geiger	Rochester Institute of Technology

* indicates the PI