This page presents the data release of the LOFAR international baseline wide-field images and catalogues of the ELAIS-N1 field at 0.3”, 0.6”, and 1.2” resolutions. The images reach a best sensitivity of 14 µJy/beam at 0.3”, 21 µJy/beam at 0.6”, and 40 µJy/beam at 1.2” using four 8h observations, making these the currently deepest LOFAR wide-field images at these resolutions. Above 5 sigma, 9203 sources at 0.3”, 8566 sources at 0.6”, and 5869 sources at 1.2” are detected within the 2.5 x 2.5 degrees field of view.
The image was produced following the procedure described by de Jong et al. (2024)., where 30 directions were self-calibrated. The corresponding 30 facets were imaged separately, and in each facet we ran PyBDSF to construct catalogues, which were merged together into a single catalogue for each resolution. We also supply a mosaic image where the 30 facets have been convolved to a common resolution of 0.36 x 0.45, 0.58 x 0.62, and 1.0 x 1.5 arcsecs before mosaicing. This mosaic is provided for convenience of browsing only and we recommend users to extract sub-images from the individual facets if possible. The facet layout is shown to the right.
If you use these data for science please cite the relevant papers and give appropriate acknowledgements.
Below we provide:
Wide field products:
- Mosaic image at 0.36 x 0.45 arcsec resolution (37GB) and associated catalogue
- Mosaic image at 0.58 x 0.62 arcsec resolution (8GB) and associated catalogue
- Mosaic image at 1.0 x 1.5 arcsec resolution (2GB) and associated catalogue
- Full region layout as DS9 region file