Jodrell Bank Banner

 ‹‹prev | contents | next››

 



A small section of test data from the Cardiff Hydrogen Line Survey. Very strong signals appear as black and white in this plot; that on the left is hydrogen emission from our own galaxy, whilst that on the right is interference from telecommunication radio links. The much weaker signal highlighted is from the galaxy NGC3717.


The Lovell Telescope Multi-Beam Receiver being hoisted up to the focus box. It shows the four feed apertures at the base of the combined cryostat. Photo: Tony Acevedo


 

 ‹‹prev | contents | next››

The Lovell Multi-Beam Receiver


The Lovell Multi-Beam Receiver

A new four-beam receiver, shown in left, can now be installed on the Lovell Telescope for use in hydrogen line and pulsar surveys. Each beam receives signals from a slightly different region of the sky. The whole receiver can be rotated so that, by aligning the feeds appropriately, they can observe four parallel strips of the sky for each scan of the telescope. It is equivalent to building three new 76-metre telescopes but at a fraction of the cost!

The University of Wales H-Line Survey

The multi-beam receiver is being used by astronomers at Cardiff to carry out a very sensitive hydrogen line survey of the northern sky. A test observation is shown left.

For more on Multibeam research see the HI Jodrell All Sky Survey pages


Home | U.Man | PPARC | MERLIN | VLBI | Search | Feedback