MPIfR PAF@Parkes Results from the A. Chippendale ATUC, 14 Nov 2016 Photo by J. Sarkissian Astronomy and space science ATUC, 14 Nov 2016

Modified ASKAP PAF on 64 m Parkes Telescope Photo by Xinping Deng

MPIfR PAF System at Parkes 188 ports, 94 ports each polarization, 4 spare ports 36 beams x 2 pol x 336 MHz voltages streamed to GPUs (1 MHz resolution) 16 beams x 2 pol x 384 MHz spectra download (18 kHz resolution) Tested 18 beams in streaming mode and 16 beams in spectral-line mode ASKAP Software One fiber for one port with full bandwidth, 12 DRX X 16 ports=192 ports; One fiber with all ports, 8 BMF X 48MHz = 384 MHz 1 GPU node processes 3 beams with full bandwidth PAF: 600 MHz DRX: 600 MHz BMF: 384 MHz 14 GPU nodes Modified ASKAP PAF on 64 m Parkes Telescope

1.4 GHz sensitivity patterns PAF sensitivity envelope Multibeam sensitivity MPIfR PAF beam sensitivity (credit L. Staveley Smith) 13 beams 17 beams

Effective FOV versus beam pitch (17 beams) Modified ASKAP PAF on 64 m Parkes Telescope

Noise temperature of MPIfR PAF on Parkes 64 m maxSNR beam at boresight Multibeam Tsys/h Multibeam (Chippendale et al., ICEAA 2016 arXiv:1606.03533)

MPIPAF first HI astronomy MPIPAF@Parkes: August 2016 No standing wave! HIPSR first light: Oct 2011 (credit: L. Staveley-Smith and J. Rhee)

21 cm spectrum of another galaxy HIPASS J040-48 Parkes 20 cm Multibeam (HIPASS public data release v1.2, ) MPIfR PAF on Parkes (credit: L. Staveley-Smith and J. Rhee, 18 kHz res.) “Nice flat baseline” – L. Staveley-Smith Modified ASKAP PAF on 64 m Parkes Telescope

Single port spectra at zenith (1.2-1.5 GHz) Stats over continuous 2 s integrations for 6 hrs Modified ASKAP PAF on 64 m Parkes Telescope

Single port spectra at zenith (0.7-1.2 GHz) Stats over continuous 2 s integrations for 12 hrs Modified ASKAP PAF on 64 m Parkes Telescope

Live RFI Mitigation Demonstration with K. Bannister and G. Hellbourg (like ACES memo 12 test on ASKAP BETA) Mitigation on vs. off RFI Suppression (dB) Modified ASKAP PAF on 64 m Parkes Telescope

HI gas in a young radio galaxy at z=0.44 ASKAP BETA (Allison et al., MNRAS 2015) Modified ASKAP PAF on 64 m Parkes Telescope

Murchison Radio-astronomy Observatory Population 113 See Wilson et al. “The Australian Radio Quiet Zone...” in this session. Modified ASKAP PAF on 64 m Parkes Telescope

Parkes Population 15,000 Modified ASKAP PAF on 64 m Parkes Telescope

VLBI between PAF on Parkes and ATCA H-OH (credit: Chris Phillips) ASKAP-Parkes Fringes Parkes Bandpass Modified ASKAP PAF on 64 m Parkes Telescope

Just working versus blown out of the water... Modified ASKAP PAF on 64 m Parkes Telescope

Modified ASKAP PAF on 64 m Parkes Telescope

Modified ASKAP PAF on 64 m Parkes Telescope

Beam 7 Beam 6 Beam 1 Beam 8 Beam 5 Beam 2 Beam 9 Beam 4 Beam 3 Vela Pulsar (J0835-4510): 3x3 Square Footprint on 0.215° Pitch, S1400 = 1.1 Jy Modified ASKAP PAF on 64 m Parkes Telescope

Simultaneous timing of 3 pulsars (Deng et al. in prep.) Modified ASKAP PAF on 64 m Parkes Telescope

Polarisation calibration Instrument modelled by single Jones matrix J where Solve for J that minimises square of difference between PAF measurement and PPTA reference measurement Rotation by parallactic angle y and feed angle FA Generic instrumental response Modified ASKAP PAF on 64 m Parkes Telescope

Multi-epoch PAF observation of PSR J0437-4715 Offset beam (-0. 215°,-0 Multi-epoch PAF observation of PSR J0437-4715 Offset beam (-0.215°,-0.215°) in (cross-elevation,elevation) (Deng et al. in prep.) Modified ASKAP PAF on 64 m Parkes Telescope

PSR J0437-4715: normalised Stokes I PPTA reference PAF PPTA reference from Dai et al., MNRAS 2015 (Deng et al. in prep.) Modified ASKAP PAF on 64 m Parkes Telescope

PSR J0437-4715: degree of linear polarisation PPTA reference PAF calibrated PPTA reference PAF (Deng et al. in prep.) PPTA reference from Dai et al., MNRAS 2015 Modified ASKAP PAF on 64 m Parkes Telescope

PSR J0437-4715: Stokes V (Deng et al. in prep.) calibrated PPTA reference PAF calibrated PPTA reference PAF (Deng et al. in prep.) PPTA reference from Dai et al., MNRAS 2015 Modified ASKAP PAF on 64 m Parkes Telescope

PSR J0437-4715: position angle (Deng et al. in prep.) calibrated PPTA reference from Dai et al., MNRAS 2015 Modified ASKAP PAF on 64 m Parkes Telescope

Jones matrix parameters Single J works reasonably for 336 MHz band abs_gain: 1.05 sys_phase: -2.72 deg diff_gain_mod: 0.929 diff_gain_arg: 9.16 deg leak_a_b_mod: -35.7 dB leak_a_b_arg: 71.7 deg leak_b_a_mod: -34.7 dB leak_b_a_ar: -30.0 deg feed_angle: -2.0 deg Low leakage Modified ASKAP PAF on 64 m Parkes Telescope

Longer term (supporting science) Next More beams Real-time event detection (FRBs) Extended simultaneous timing of multiple pulsars (field rotation) Refine beam calibraiton elevation dependence, on-dish source, repeatability, spillover Longer term (supporting science) Reduce beam calibration overheads Direction of arrival (DOA) estimation Sky de-rotation via beamforming RFI detection and mitigation Modified ASKAP PAF on 64 m Parkes Telescope

Thanks to many R. Beresford S. Broadhurst A. Brown X. Deng D. George G. Hobbs S. Johnston R. Karuppusamy M. Kramer M. Leach M. Malenta M. Marquarding C. Phillips B. Preisig J. Reynolds J. Rhee T. Ruckley M. Smith L. Staveley-Smith L. Spitler J. Tuthill T. Tzioumis G. Wieching ..... Modified ASKAP PAF on 64 m Parkes Telescope

Thank you Astronomy and Space Science Photo by John Sarkissian Astronomy and Space Science Dr. Aaron Chippendale Senior Research Engineer t +61 2 9372 4296 e aaron.chippendale@csiro.au w www.atnf.csiro.au/projects/askap Astronomy and space science