Galaxy Power Spectrum and Biasing Results from the LOFAR Two-meter Sky Survey (First Data Release)

The LOFAR Two-metre Sky Survey (LoTSS) is an ongoing survey aiming to observe the entire Northern sky, providing excellent opportunity study distribution and evolution of large-scale structure Universe. source catalogue from public LoTSS first data release (DR1) covers 1% shows correlated noise or fluctuations flux density calibration on few degree scales. We explore DR1 understand systematics quality this release. produce catalog mocks estimate uncertainties, measure angular clustering statistics galaxies, which fit $\Lambda$CDM cosmology reasonably well. employ a Markov chain Monte Carlo (MCMC) based Bayesian analysis recover best galaxy biasing scheme multi-component fraction for above $1$ mJy assuming different possible redshift templates. After masking some noisy uneven patches with suitable cuts, appears qualified cosmological studies. upcoming releases are expected be deeper wider, will therefore provide improved measurements.