Speaker
Description
The LOFAR Low Band Antenna (LBA) system makes LOFAR the only telescope capable of ultra-low frequency (<100 MHz) observations at high resolution. Working at these frequencies is challenging due to the low signal-to-noise ratio and ionospheric disturbances. Developments in the calibration strategies allowed us to reach thermal noise in LBA and even attempt <30 MHz imaging and long-baseline imaging.
In this talk, I will recap the latest results obtained with the LBA system in interferometric mode, as an example I will show the most recent results on imaging Virgo A (M87) at 50 (and 150 MHz) using international stations. I will make an overview on the upgrades made to the Pipeline for LOFAR LBA (PiLL) and I will give a status update on the LOFAR LBA Sky Survey (LoLSS), that aims to cover the sky at dec > 24 deg in the frequency range 42-66 MHz, reaching the sensitivity of 1 mJy/b and the resolution of 15 arcsec. Finally, I will outline the plans for the expansion of the LBA surveys with LOFAR 2.0 through the LBA LOFAR Community Sky Survey (LLoCuSS) project.
