Pulsar Observations with the Allen Telescope Array

Details Pulsar Observations with the Allen Telescope Array Pulsar Observations with the Allen Telescope Array

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21724004d&link_type=abstract

American Astronomical Society, AAS Meeting #217, #240.04; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

The detection of the gravitational wave background from massive black holes mergers requires to precisely monitor an array of millisecond pulsars spread throughout the Galaxy.
To achieve high precision pulsar timing of millisecond pulsars, high time resolution and wide bandwidth are required. The effects of the interstellar medium have also to be taken into account.
We report here the installation of a new real-time coherent dedispersion backend at the Allen Telescope Array (ATA) in the aim of monitoring a set of strong millisecond pulsar. Currently three beamformers can provide a 72 MHz bandwidth, among two of them have independent and tunable Intermediate Frequency bands. The unique capability of the ATA to simultaneously observe pulsars at two widely spaced frequencies will contribute to a better understanding of the effects of the interstellar medium on pulsar timing.

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