Investigating Mutual Coupling in the Hydrogen Epoch of Reionization Array and Mitigating its Effects on the 21-cm Power Spectrum

Authors: Rath, E., Pascua, R., Josaitis, A. T., Ewall-Wice, A., Fagnoni, N., Acedo, E. de Lera, Martinot, Z. E., Abdurashidova, Z., Adams, T., Aguirre, J. E., Baartman, R., Beardsley, A. P., Berkhout, L. M., Bernardi, G., Billings, T. S., Bowman, J. D., Bull, P., Burba, J., Byrne, R., Carey, S., Chen, K. -F., Choudhuri, S., Cox, T., DeBoer, D. R., Dexter, M., Dillon, J. S., Dynes, S., Eksteen, N., Ely, J., Fritz, R., Furlanetto, S. R., Gale-Sides, K., Garsden, H., Gehlot, B. K., Ghosh, A., Gorce, A., Gorthi, D., Halday, Z., Hazelton, B. J., Hewitt, J. N., Hickish, J., Huang, T., Jacobs, D. C., Kern, N. S., Kerrigan, J., Kittiwisit, P., Kolopanis, M., Lanman, A., Liu, A., Ma, Y. -Z., MacMahon, D. H. E., Malan, L., Malgas, C., Malgas, K., Marero, B., McBride, L., Mesinger, A., Mohamed-Hinds, N., Molewa, M., Morales, M. F., Murray, S. G., Nikolic, B., Nuwegeld, H., Parsons, A. R., Patra, N., La Plante, P., Qin, Y., Razavi-Ghods, N., Riley, D., Robnett, J., Rosie, K., Santos, M. G., Sims, P., Singh, S., Storer, D., Swarts, H., Tan, J., Wilensky, M. J., Williams, P. K. G., van Wyngaarden, P., Zheng, H.

Subject Terms: Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics

Access URL: http://arxiv.org/abs/2406.08549

Design of the New Wideband Vivaldi Feed for the HERA Radio-Telescope Phase II

Authors: Fagnoni, N., de Lera Acedo, E., Drought, N., DeBoer, D.R., Riley, D., Razavi-Ghods, N., Carey, S., Parsons, A.R.

Source: IEEE Transactions on Antennas and Propagation IEEE Trans. Antennas Propagat. Antennas and Propagation, IEEE Transactions on. 69(12):8143-8157 Dec, 2021

Simulations of primary beam effects on the cosmic bispectrum phase observed with the Hydrogen Epoch of Reionization Array

Authors: Charles, N., Bernardi, G., Bester, H. L., Smirnov, O. M., Carilli, C., Keller, P. M., Kern, N., Nikolic, B., Thyagarajan, N., Acedo, E. de Lera, Fagnoni, N., Santos, M. G.

Subject Terms: Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics

Access URL: http://arxiv.org/abs/2112.12765

Radio antenna design for sky-averaged 21 cm cosmology experiments: the REACH case

Authors: Cumner, J., Acedo, E. De Lera, de Villiers, D. I. L., Anstey, D., Kolitsidas, C. I., Gurdon, B., Fagnoni, N., Alexander, P., Bernardi, G., Bevins, H. T. J., Carey, S., Cavillot, J., Chiello, R., Craeye, C., Croukamp, W., Ely, J. A., Fialkov, A., Gessey-Jones, T., Gueuning, Q., Handley, W., Hills, R., Josaitis, A. T., Kulkarni, G., Magro, A., Maiolino, R., Meerburg, P. D., Mittal, S., Pritchard, J. R., Puchwein, E., Razavi-Ghods, N., Roque, I. L. V., Saxena, A., Scheutwinkel, K. H., Shen, E., Sims, P. H., Smirnov, O., Spinelli, M., Zarb-Adami, K.

Subject Terms: Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics

Access URL: http://arxiv.org/abs/2109.10098

Designing Antennas for Large N Aperture Arrays: The SKA and HERA Cases

Authors: De Lera Acedo, E., Fagnoni, N., Pienaar, H.

Source: 2018 2nd URSI Atlantic Radio Science Meeting (AT-RASC) URSI Atlantic Radio Science Meeting (AT-RASC), 2018 2nd. :1-3 May, 2018

Relation: 2018 2nd URSI Atlantic Radio Science Meeting (AT-RASC)

The “Hydrogen Epoch of Reionization Array” (HERA) — Improvement of the antenna response with a matching network and scientific impacts

Authors: Fagnoni, N., De Lera Acedo, E.

Source: 2016 International Conference on Electromagnetics in Advanced Applications (ICEAA) Electromagnetics in Advanced Applications (ICEAA), 2016 International Conference on. :629-632 Sep, 2016

Relation: 2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)

A Real Time Processing system for big data in astronomy: Applications to HERA

Authors: La Plante, P., Williams, P.K.G., Kolopanis, M., Dillon, J.S., Beardsley, A.P., Kern, N.S., Wilensky, M., Ali, Z.S., Abdurashidova, Z., Aguirre, J.E., Alexander, P., Balfour, Y., Bernardi, G., Billings, T.S., Bowman, J.D., Bradley, R.F., Bull, P., Burba, J., Carey, S., Carilli, C.L., Cheng, C., DeBoer, D.R., Dexter, M., de Lera Acedo, E., Ely, J., Ewall-Wice, A., Fagnoni, N., Fritz, R., Furlanetto, S.R., Gale-Sides, K., Glendenning, B., Gorthi, D., Greig, B., Grobbelaar, J., Halday, Z., Hazelton, B.J., Hewitt, J.N., Hickish, J., Jacobs, D.C., Julius, A., Kerrigan, J., Kittiwisit, P., Kohn, S.A., Lanman, A., Lekalake, T., Lewis, D., Liu, A., MacMahon, D., Malan, L., Malgas, C., Maree, M., Martinot, Z.E., Matsetela, E., Mesinger, A., Molewa, M., Morales, M.F., Mosiane, T., Murray, S., Neben, A.R., Nikolic, B., Parsons, A.R., Pascua, R., Patra, N., Pieterse, S., Pober, J.C., Razavi-Ghods, N., Ringuette, J., Robnett, J., Rosie, K., Santos, M.G., Sims, P., Smith, C., Syce, A., Thyagarajan, N., Zheng, H.

Source: In Astronomy and Computing July 2021 36

Simulations of primary beam effects on the cosmic bispectrum phase observed with the Hydrogen Epoch of Reionization Array.

Authors: Charles, N¹, ntsikelelo.charles@gmail.com, Bernardi, G^1,2,3, giannibernardi75@gmail.com, Bester, H L^1,3, Smirnov, O M^1,3, Carilli, C⁴, Keller, P M⁵, Kern, N⁶, Nikolic, B⁵, Thygarajan, N^4,7, de Lera Acedo, E^5,8, Fagnoni, N⁵, Santos, M G^3,9

Source: Monthly Notices of the Royal Astronomical Society; May2022, Vol. 512 Issue 2, p2716-2727, 12p

Radio Antenna Design for Sky-Averaged 21cm Cosmology Experiments: The REACH Case.

Authors: Cumner, J., de Lera Acedo, E., de Villiers, D. I. L., Anstey, D., Kolitsidas, C. I., Gurdon, B., Fagnoni, N., Alexander, P., Bernardi, G., Bevins, H. T. J., Carey, S., Cavillot, J., Chiello, R., Craeye, C., Croukamp, W., Ely, J. A., Fialkov, A., Gessey-Jones, T., Gueuning, Q., Handley, W.

Source: Journal of Astronomical Instrumentation; Mar2022, Vol. 11 Issue 1, p1-26, 26p

Subject Terms: RADIO antennas, HYDROGEN, DIPOLE antennas, IMPEDANCE spectroscopy