Recent submissions 

Curtin Research Publications: Recent submissions

Now showing items 2231-2240 of 70736

    • Exploring reionization and high-z galaxy observables with recent multiredshift MWA upper limits on the 21-cm signal
      Greig, B.; Trott, Cathryn ; Barry, Nichole ; Mutch, S.J.; Pindor, B.; Webster, R.L.; Wyithe, J.S.B. (2021)
      We use the latest multiredshift (z = 6.5-8.7) upper limits on the 21-cm signal from the Murchison Widefield Array (MWA) to explore astrophysical models which are inconsistent with the data. We explore these limits in the ...
    • Modelling and peeling extended sources with shapelets: A Fornax A case study
      Line, Jack ; Mitchell, D.A.; Pindor, B.; Riding, J.L.; McKinley, Ben ; Webster, R.L.; Trott, Cathryn ; Hurley-Walker, Natasha ; Offringa, A.R. (2020)
      To make a power spectrum (PS) detection of the 21-cm signal from the Epoch of Reionisation (EoR), one must avoid/subtract bright foreground sources. Sources such as Fornax A present a modelling challenge due to spatial ...
    • The bispectrum and 21-cm foregrounds during the Epoch of Reionization
      Watkinson, C.A.; Trott, Cathryn ; Hothi, I. (2021)
      Numerous studies have established the theoretical potential of the 21-cm bispectrum to boost our understanding of the Epoch of Reionization (EoR). We take a first look at the impact of foregrounds (FGs) and instrumental ...
    • Calibration and 21-cm power spectrum estimation in the presence of antenna beam variations
      Joseph, R.C.; Trott, Cathryn ; Wayth, Randall ; Nasirudin, A. (2020)
      Detecting a signal from the Epoch of Reionization (EoR) requires an exquisite understanding of Galactic and extragalactic foregrounds, low-frequency radio instruments, instrumental calibration, and data analysis pipelines. ...
    • First Season MWA Phase II Epoch of Reionization Power Spectrum Results at Redshift 7
      Li, W.; Pober, J.C.; Barry, N.; Hazelton, B.J.; Morales, M.F.; Trott, Cathryn ; Lanman, A.; Wilensky, M.; Sullivan, I.; Beardsley, A.P.; Booler, Tom ; Bowman, J.D.; Byrne, R.; Crosse, B.; Emrich, David ; Franzen, Thomas ; Hasegawa, K.; Horsley, L.; Johnston-Hollitt, Melanie ; Jacobs, D.C.; Jordan, Chris ; Joseph, R.C.; Kaneuji, T.; Kaplan, D.L.; Kenney, David ; Kubota, K.; Line, Jack ; Lynch, Christene ; McKinley, Ben ; Mitchell, D.A.; Murray, Steven ; Pallot, D.; Pindor, B.; Rahimi, M.; Riding, J.; Sleap, G.; Steele, K.; Takahashi, K.; Tingay, Steven ; Walker, Mia ; Wayth, Randall ; Webster, R.L.; Williams, Andrew ; Wu, C.; Wyithe, J.S.B.; Yoshiura, S.; Zheng, Q. (2019)
      The compact configuration of Phase II of the Murchison Widefield Array (MWA) consists of both a redundant subarray and pseudo-random baselines, offering unique opportunities to perform sky-model and redundant interferometric ...
    • Study of systematics effects on the cross power spectrum of 21 cm line and cosmic microwave background using Murchison Widefield Array data
      Yoshiura, S.; Ichiki, K.; Pindor, B.; Takahashi, K.; Tashiro, H.; Trott, Cathryn (2019)
      Observation of the 21 cm line signal from neutral hydrogen during the epoch of reionization is challenging due to extremely bright Galactic and extragalactic foregrounds and complicated instrumental calibration. A reasonable ...
    • The First Large Absorption Survey in H i (FLASH): I. Science goals and survey design
      Allison, J.R.; Sadler, E.M.; Amaral, A.D.; An, T.; Curran, S.J.; Darling, J.; Edge, A.C.; Ellison, S.L.; Emig, K.L.; Gaensler, B.M.; Garratt-Smithson, L.; Glowacki, Marcin ; Grasha, K.; Koribalski, B.S.; Lagos, C.D.P.; Lah, P.; Mahony, E.K.; Mao, S.A.; Morganti, R.; Moss, V.A.; Pettini, M.; Pimbblet, K.A.; Power, C.; Salas, P.; Staveley-Smith, L.; Whiting, M.T.; Wong, O.I.; Yoon, H.; Zheng, Z.; Zwaan, M.A. (2022)
      We describe the scientific goals and survey design of the First Large Absorption Survey in H i (FLASH), a wide field survey for 21-cm line absorption in neutral atomic hydrogen (H i) at intermediate cosmological redshifts. ...
    • Comparison of the Parkes and FAST FRB DM distribution
      Arcus, W.R.; James, Clancy ; Ekers, Ronald ; Wayth, Randall (2022)
      We model the fast radio burst (FRB) dispersion measure (DM) distribution for the Five-hundred-meter Aperture Spherical Telescope (FAST) and compare this with the four FRBs published in the literature to date. We compare ...
    • The z-DM distribution of fast radio bursts
      James, Clancy ; Prochaska, J.X.; Macquart, Jean-Pierre ; North-Hickey, F.O.; Bannister, K.W.; Dunning, A. (2022)
      We develop a sophisticated model of fast radio burst (FRB) observations, accounting for the intrinsic cosmological gas distribution and host galaxy contributions, and give the most detailed account yet of observational ...
    • Using negative-latency gravitational wave alerts to detect prompt radio bursts from binary neutron star mergers with the Murchison Widefield Array
      James, Clancy ; Anderson, Gemma ; Wen, L.; Bosveld, J.; Chu, Q.; Kovalam, M.; Slaven-Blair, T.J.; Williams, Andrew (2019)
      We examine how fast radio burst (FRB)-like signals predicted to be generated during the merger of a binary neutron star (BNS) may be detected in low-frequency radio observations triggered by the aLIGO/Virgo gravitational-wave ...