5 papers
PEACC - Precision Emitter for 21 cm Array Coherent Calibration
Kalyani Bhopi, Morgan Cole, Mallory Helfenbein +4
Foreground mitigation remains a central challenge for 21 cm intensity mapping experiments, which require precise, wideband calibration of telescope beams and gains. We present the…
A Neural Score-Based Particle Method for the Vlasov-Maxwell-Landau System
Vasily Ilin, Jingwei Hu
Plasma modeling is central to the design of nuclear fusion reactors, yet simulating collisional plasma kinetics from first principles remains a formidable computational challenge:…
Interference detection in radio astronomy applying Shapiro-Wilks normality test, spectral entropy, and spectral relative entropy
Zhicheng Cao, Natalia A. Schmid, Kevin Bandura +6
Radio-frequency interference (RFI) is becoming an increasingly significant problem for most radio telescopes. Working with Green Bank Telescope data from PSR J1730+0747 in the form…
Millisecond Cadence Radio Frequency Interference Filters
Joseph W. Kania, Kevin Bandura, Duncan R. Lorimer +1
Radio Frequency Interference (RFI) greatly reduces sensitivity of radio observations to astrophysical signals and creates false positive candidates in searches for radio transients…
A Digital Calibration Source for 21cm Cosmology Telescopes
Kalyani Bhopi, Will Tyndall, Pranav Sanghavi +3
Foreground mitigation is critical to all next-generation radio interferometers that target cosmology using the redshifted neutral hydrogen 21 cm emission line. Attempts to remove t…