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PUMA: The Positional Update and Matching Algorithm

  • J. L. B. Line (a1) (a2), R. L. Webster (a1) (a2), B. Pindor (a1) (a2), D. A. Mitchell (a2) (a3) and C. M. Trott (a2) (a4)...
Abstract
Abstract

We present new software to cross-match low-frequency radio catalogues: the Positional Update and Matching Algorithm. The Positional Update and Matching Algorithm combines a positional Bayesian probabilistic approach with spectral matching criteria, allowing for confusing sources in the matching process. We go on to create a radio sky model using Positional Update and Matching Algorithm based on the Murchison Widefield Array Commissioning Survey, and are able to automatically cross-match ~ 98.5% of sources. Using the characteristics of this sky model, we create simple simulated mock catalogues on which to test the Positional Update and Matching Algorithm, and find that Positional Update and Matching Algorithm can reliably find the correct spectral indices of sources, along with being able to recover ionospheric offsets. Finally, we use this sky model to calibrate and remove foreground sources from simulated interferometric data, generated using OSKAR (the Oxford University visibility generator). We demonstrate that there is a substantial improvement in foreground source removal when using higher frequency and higher resolution source positions, even when correcting positions by an average of 0.3 arcmin given a synthesised beam-width of ~ 2.3 arcmin.

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5 Email: jline@student.unimelb.edu.au
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J. R. Allison , et al. 2015, MNRAS, 453, 1249 10.1093/mnras/stv1532

A. P. Beardsley , et al. 2013, MNRAS: Letters, 429, 5 10.1093/mnrasl/sls013

A. P. Beardsley , et al. 2016, ApJ, accepted, arXiv:1608.06281 arXiv:1608.06281

E. Bertin , & S. Arnouts 1996, A&AS, 117, 393 10.1051/aas:1996164

M. Bilicki , et al. 2016, ApJS, 225, 5 10.3847/0067-0049/225/1/5

J. D. Bowman , et al. 2013, PASP, 30, e031 10.1017/pas.2013.009

T. Budavári , & A. S. Szalay 2008, ApJ, 679, 301 10.1086/587156

J. R. Callingham , et al. 2015, ApJ, 809, 168 10.1088/0004-637X/809/2/168

P. A. Carroll , et al. 2016, MNRAS, 461, 4151 10.1093/mnras/stw1599

a. S. Cohen , W. M. Lane , W. D. Cotton , N. E. Kassim , T. J. W. Lazio , R. a. Perley , J. J. Condon , & W. C. Erickson 2007, AJ, 134, 1245 10.1086/520719

J. J. Condon , W. D. Cotton , E. W. Greisen , Q. F. Yin , R. A. Perley , G. B. Taylor , & J. J. Broderick 1998, AJ, 115, 1693 10.1086/300337

a. Datta , J. D. Bowman , & C. L. Carilli 2010, ApJ, 724, 526 10.1088/0004-637X/724/1/526

D. Fan , T. Budavári , R. P. Norris , & A. M. Hopkins 2015, MNRAS, 451, 1299 10.1093/mnras/stv994

V. L. Ginzburg , & S. I. Syrovatsk 1969, ARA&A, 7, 375 10.1146/annurev.aa.07.090169.002111

C. B. Haakonsen , & R. E. Rutledge 2009, ApJS, 184, 138 10.1088/0067-0049/184/1/138

B. J. Hazelton , M. F. Morales , & I. S. Sullivan 2013, ApJ, 770, 156 10.1088/0004-637X/770/2/156

G. H. Heald , et al. 2015, A&A, 582, A123 10.1051/0004-6361/201425210

H. T. Intema , S. van der Tol , W. D. Cotton , a. S. Cohen , I. M. van Bemmel , & H. J. a. Röttgering 2009, A&A, 501, 1185 10.1051/0004-6361/200811094

D. C. Jacobs , et al. 2016, ApJ, 825, 114 10.3847/0004-637X/825/2/114

S. Kazemi , S. Yatawatta , & S. Zaroubi 2013, MNRAS, 430, 1457 10.1093/mnras/stt018

A. E. Kimball , & Ž. Ivezić 2008, AJ, 136, 684 10.1088/0004-6256/136/2/684

W. M. Lane , W. D. Cotton , S. van Velzen , T. E. Clarke , N. E. Kassim , J. F. Helmboldt , T. J. W. Lazio , & a. S. Cohen 2014, MNRAS, 440, 327 10.1093/mnras/stu256

M. I. Large , B. Y. Mills , A. G. Little , D. F. Crawford , & J. M. Sutton 1981, MNRAS, 194, 693

T. Mauch , T. Murphy , H. J. Buttery , J. Curran , R. W. Hunstead , B. Piestrzynski , J. G. Robertson , & E. M. Sadler 2003, MNRAS, 342, 1117 10.1046/j.1365-8711.2003.06605.x

M. F. Morales , & J. S. B. Wyithe 2010, ARA&A, 48, 127 10.1146/annurev-astro-081309-130936

M. F. Morales , B. Hazelton , I. Sullivan , & A. Beardsley 2012, ApJ, 752, 137 10.1088/0004-637X/752/2/137

B. J. Mort , F. Dulwich , S. Salvini , K. Z. Adami , & M. E. Jones 2010, in 2010 IEEE International Symposium, Phased Array Systems and Technology. (New York: IEEE), 690, doi:10.1109/array.2010.5613289 10.1109/array.2010.5613289

T. Naylor , P. S. Broos , & E. D. Feigelson 2013, ApJS, 209, 30 10.1088/0067-0049/209/2/30

A. R. Offringa , et al. 2015, PASA, 32, e008 10.1017/pasa.2015.7

A. R. Offringa , et al. 2016, MNRAS, 458, 1057 10.1093/mnras/stw310

S. M. Ord , et al. 2015, PASA, 32, e006 10.1017/pasa.2015.5

A. Parsons , J. Pober , M. McQuinn , D. Jacobs , & J. Aguirre 2012, ApJ, 753, 81 10.1088/0004-637X/753/1/81

A. R. Parsons , et al. 2010, AJ, 139, 1468 10.1088/0004-6256/139/4/1468

F.-X. Pineau , C. Motch , F. Carrera , R. Della Ceca , S. Derrière , L. Michel , A. Schwope , & M. G. Watson 2011, A&A, 527, A126 10.1051/0004-6361/201015141

J. C. Pober , et al. 2014, ApJ, 782, 66 10.1088/0004-637X/782/2/66

J. C. Pober , et al. 2016, ApJ, 819, 8 10.3847/0004-637X/819/1/8

O. M. Smirnov , & C. Tasse 2015, MNRAS, 449, 2668 10.1093/mnras/stv418

A. Sutinjo , S. Padhi , R. Wayth , P. Hall , S. Tingay , J. O’Sullivan , & E. Lenc 2014, in 2014 16th International Symposium, Antenna Technology and Applied Electromagnetics (ANTEM) (New York: IEEE), 1, doi:10.1109/ANTEM.2014.6887732 10.1109/ANTEM.2014.6887732

N. Thyagarajan , et al. 2013, ApJ, 776, 6 10.1088/0004-637X/776/1/6

S. J. Tingay , et al. 2013, PASA, 30, e007 10.1017/pasa.2012.007

C. M. Trott , R. B. Wayth , & S. J. Tingay 2012, ApJ, 757, 101 10.1088/0004-637X/757/1/101

M. P. van Haarlem , et al. 2013, A&A, 556, A2 10.1051/0004-6361/201220873

H. Vedantham , N. Udaya Shankar , & R. Subrahmanyan 2012, ApJ, 745, 176 10.1088/0004-637X/745/2/176

R. B. Wayth , et al. 2015, PASA, 32, e025 10.1017/pasa.2015.26

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Publications of the Astronomical Society of Australia
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