The ATNF Facilities are used to monitor radio sources over weeks, months, years and even decades. The ATCA can rapidly respond to a source varying and can monitor the changes over a wide-range of observing frequencies. The LBA allows us to monitor changes with high angular resolution and Murriyang is renowned for long-term monitoring of pulsars and masers. We also carry out long-term monitoring observations of background radio sources (such as AGN and pulsars) to study space weather.

Capabilities

FacilityCapabilities
ASKAPThe ASKAP Guest Science proposals enable the long-term monitoring of specific sources using the continuum or spectral line observing modes. Interplanetary scintillation observations are used to monitor space weather.
ATCARegular observations with the ATCA provides the flux densities and calibrator properties reported in the calibrator database. The ATCA has the capability for the long-term monitoring of radio sources with a rapid response to variations in a source to wide bandwidth monitoring observations over years.
MurriyangMurriyang has ongoing projects to monitor pulsars and masers over long durations. Data products from the long-term pulsar projects are recorded in the Data Archive (DAP) with the project codes:

P455: Long term monitoring of the double pulsar
P456: The Parkes Pulsar Timing Array project, observing millisecond pulsars since 2004
P574: Young pulsar monitoring

Murriyang can also be used to observe sources (such as pulsars) with lines-of-sight passing close to the Sun. Such observations are used to monitor the solar wind.
LBAThe LBA has been used for long-term monitoring of the structure and evolution of jets in Active Galactic Nuclei. Multi-epoch observations have been made to determine parallaxes and proper motions of Galactic masers and pulsars.

Resources

Four radio telescope dishes

The ATCA is used to monitor a large number of radio calibrator sources. Details of these calibrators are accessible from the calibrator database.

An illustration of a blue orb with red bands streaming from the North Pole to the South Pole. Jets of light are beaming from each pole.

The ATNF pulsar group have used the Murriyang, ATCA and ASKAP telescopes to study radio pulsars. We have active research projects in high precision pulsar timing, young pulsar monitoring and in searching for new pulsars.

An ASKAP Survey for Variables and Slow Transients