diff --git a/source/introduction.rst b/source/introduction.rst index b5534cd51b5a6aca3bec2df609f3753c400a48de..7318e053610dd4f04d9e2de347853035e3e38abc 100644 --- a/source/introduction.rst +++ b/source/introduction.rst @@ -24,7 +24,6 @@ Before detailing the structure and use of beam-formed data recorded by LOFAR, it + "Tied-array beams (TAB)": + Each station beam returned from multiple stations can be combined coherently to form multiple tied-array beams, each with a different pointing. + Represent the narrowest beams which can be formed with LOFAR, with half-power beamwidths of less than 0.1 degree depending on frequency and the baselines of stations used. - + bla + Up to approximately 200 beams can be formed each with the same bandwidth as the station beam(s) used. + Restricted to core stations only. + "Incoherent beam":