Applications are invited for postdoctoral positions in radio astronomy at Caltech. Applicants must hold a Ph.D. degree in Astronomy, Physics, or a related field. Potential areas for a candidate to be involved span instrumentation, data analysis and interpretation. Candidates with experience in software pipelines for high time resolution observations, and technical aspects of interferometric calibration and imaging, are particularly encouraged to apply.
Active research projects include:
The Long Wavelength Array (OVRO-LWA): A low frequency (15-85 MHz) all-sky imaging and beam-forming array with focus on the auroral radio emission from exoplanets, prompt counterparts to gravitational wave events, extended air showers produced by cosmic-rays and the 21-cm power spectrum in the Cosmic Dawn epoch.
The Deep Synoptic Array (DSA-110): A 110-dish array that is localizing fast radio bursts (FRBs) to their host galaxies. The DSA will enable transformational advances in our understanding of the origins of FRBs, and of the unseen baryons in the CGM and IGM.
The Deep Synoptic Array (DSA-2000): The 2000-antenna Deep Synoptic Array(DSA-2000) is an upcoming world-leading radio survey telescope and multimessenger discovery engine, with first light anticipated in 2026. The array will consist of 2000 x 5 m dishes distributed over a 15km diameter area in Nevada, operating in the 0.7 - 2 GHz frequency range.
The Radio Camera Initiative: The RCI is developing a streaming pipeline for near real-time flagging, calibration and imaging with very large-N radio interferometer arrays (thousands of antennas) such as the 2000-element Deep Synoptic Array (DSA-2000). The RCI will enable future large arrays to replace traditional correlators with a ‘radio camera’ - an integrated digital back-end that will produce the final image data in near real-time.
SPRITE: A high frequency (~100 GHz) interferometer for the follow-up of transients, sited at the Owens Valley Radio Observatory. Multiple 10.4-m dishes will be used to follow-up a plethora of transient triggers, and monitor AGN and active stars.
VLA Transients: This project includes ongoing searches for radio transients in the VLA Sky Survey (VLASS) and follow-up of LIGO/Virgo detected compact binary mergers.
Associated faculty are Professors Gregg Hallinan, Vikram Ravi, Katie Bouman, Tony Readhead and Shri Kulkarni. Additional relevant personnel are Kieran Cleary, Casey Law, Sandy Weinreb, James Lamb, David Woody, Kunal Mooley. Candidates are encouraged to contact associated personnel to develop their research plans.
The postdoctoral fellowship position will start on September 1, 2023, or earlier. The initial term of the appointment is one year, renewable annually, for up to three years, subject to performance and availability of funds. Successful applicants will have the opportunity to propose for time on all of Caltech’s astronomical facilities, including those at Palomar Observatory and at the W. M. Keck Observatory.
Complete applications received by January 13, 2023, will receive full consideration. Applications should consist of a single PDF file, including a cover letter specifying the project area of interest from the list above, a CV, a list of publications, and a summary of previous and current research (up to 3 pages). Please include contact details for 3 potential letters of reference.
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