LoTSS DR2 Polarization spectra

The LOFAR Two Meter Sky Survey LoTSS DR2 (2022A&A...659A...1S) obtained radio data from 27% of the northern sky between 120 and 168 MHz in the year 2014 through 2020. This service publishes polarization spectra of extragalactic radio sources (radio galaxies and blazars) and the rotation measures derived from them. We also give redshifts for all sources. The data has a spatial resolution of 20 arcsec.

ICRS position of target object
Size of the region of interest around POS
Wavelength (range) of interest (or symbolic bandpass names)
Midpoint of exposure (MJD)
MIME type of the file served
Angular diameter of aperture
Signal-to-noise ratio estimated for this dataset
Redshift of target object
Common name of object observed.
Object class (star, QSO,...; use Simbad object classification http://simbad.u-strasbg.fr/simbad/sim-display?data=otypes if at all possible)
Date last published.
Type of flux calibration (ABSOLUTE, CALIBRATED, RELATIVE, NORMALIZED, or UNCALIBRATED).
Spatial resolution of data
Type of wavelength calibration
A short handle naming the collection this spectrum belongs to.
Lower limit to spectral resolution power (λ/Δλ) as a single number.
Dataset identifier assigned by the publisher
Dataset identifier assigned by the creator
Shell pattern of target observed (case insensitive)
Shell pattern of target observed (case sensitive)
This is queryData for the default operation; some services support getData as well
Only return the TOP "best" records (on this service, this usually is equivalent to MAXREC, so no ranking is implied).
Return compressed results?
An identifier for a certain run. Opaque to the service
Sort by
Limit to items.
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