Nichole Barry

Constraining the 21cm brightness temperature of the IGM at z=6.6 around LAEs with the murchison widefield array

CM Trott, CH Jordan, JLB Line, CR Lynch, S Yoshiura, B McKinley, P Dayal, B Pindor, A Hutter, K Takahashi, RB Wayth, N Barry, A Beardsley, J Bowman, R Byrne, A Chokshi, B Greig, K Hasegawa, BJ Hazelton, E Howard, et al.

Journal article  |  2021  |  MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

The locations of Ly α-emitting galaxies (LAEs) at the end of the Epoch of Reionization (EoR) are expected to correlate with region..

A new MWA limit on the 21 cm power spectrum at redshifts similar to 13-17

S Yoshiura, B Pindor, JLB Line, N Barry, CM Trott, A Beardsley, J Bowman, R Byrne, A Chokshi, BJ Hazelton, K Hasegawa, E Howard, B Greig, D Jacobs, CH Jordan, R Joseph, M Kolopanis, C Lynch, B McKinley, DA Mitchell, et al.

Journal article  |  2021  |  MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

ABSTRACT Observations in the lowest Murchison Widefield Array (MWA) band between 75 and 100 MHz have the potential ..

Dual polarization measurements of MWA beampatterns at 137 MHz

A Chokshi, JLB Line, N Barry, D Ung, D Kenney, A McPhail, A Williams, RL Webster

Journal article  |  2021  |  MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

ABSTRACT The wide adoption of low-frequency radio interferometers as a tool for deeper and higher resolution astron..

Exploring reionization and high-z galaxy observables with recent multiredshift MWA upper limits on the 21-cm signal

Bradley Greig, Cathryn M Trott, Nichole Barry, Simon J Mutch, Bart Pindor, Rachel L Webster, J Stuart B Wyithe

Journal article  |  2021  |  MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

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..

The impact of tandem redundant/sky-based calibration in MWA Phase II data analysis

Zheng Zhang, Jonathan C Pober, Wenyang Li, Bryna J Hazelton, Miguel F Morales, Cathryn M Trott, Christopher H Jordan, Ronniy C Joseph, Adam Beardsley, Nichole Barry, Ruby Byrne, Steven J Tingay, Aman Chokshi, Kenji Hasegawa, Daniel C Jacobs, Adam Lanman, Jack LB Line, Christene Lynch, Benjamin McKinley, Daniel A Mitchell, et al.

Journal article  |  2020  |  Publications of the Astronomical Society of Australia

Precise instrumental calibration is of crucial importance to 21-cm cosmology experiments. The Murchison Widefield Array’s (MWA) Ph..

Quantifying excess power from radio frequency interference in Epoch of Reionization measurements

Michael J Wilensky, Nichole Barry, Miguel F Morales, Bryna J Hazelton, Ruby Byrne

Journal article  |  2020  |  MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

We quantify the effect of radio frequency interference (RFI) on measurements of the 21-cm power spectrum during the Epoch of Reion..

Deep multiredshift limits on Epoch of Reionization 21 cm power spectra from four seasons of Murchison Widefield Array observations

Cathryn M Trott, CH Jordan, S Midgley, N Barry, B Greig, B Pindor, JH Cook, G Sleap, SJ Tingay, D Ung, P Hancock, A Williams, J Bowman, R Byrne, A Chokshi, BJ Hazelton, K Hasegawa, D Jacobs, RC Joseph, W Li, et al.

Journal article  |  2020  |  MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

We compute the spherically averaged power spectrum from four seasons of data obtained for the Epoch of Reionization (EoR) project ..

First Season MWA Phase II Epoch of Reionization Power Spectrum Results at Redshift 7

W Li, JC Pober, N Barry, BJ Hazelton, MF Morales, CM Trott, A Lanman, M Wilensky, I Sullivan, AP Beardsley, T Booler, JD Bowman, R Byrne, B Crosse, D Emrich, TMO Franzen, K Hasegawa, L Horsley, M Johnston-Hollitt, DC Jacobs, et al.

Journal article  |  2019  |  ASTROPHYSICAL JOURNAL

The compact configuration of Phase II of the Murchison Widefield Array (MWA) consists of both a redundant subarray and pseudo-rand..

Absolving the SSINS of Precision Interferometric Radio Data: A New Technique for Mitigating Faint Radio Frequency Interference

Michael J Wilensky, Miguel F Morales, Bryna J Hazelton, Nichole Barry, Ruby Byrne, Sumit Roy

Journal article  |  2019  |  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC

We introduce a new pipeline for analyzing and mitigating radio frequency interference (RFI), which we call Sky-Subtracted Incohere..

Improving the Epoch of Reionization Power Spectrum Results from Murchison Widefield Array Season 1 Observations

N Barry, M Wilensky, CM Trott, B Pindor, AP Beardsley, BJ Hazelton, IS Sullivan, MF Morales, JC Pober, J Line, B Greig, R Byrne, A Lanman, W Li, CH Jordan, RC Joseph, B McKinley, M Rahimi, S Yoshiura, JD Bowman, et al.

Journal article  |  2019  |  ASTROPHYSICAL JOURNAL

Measurements of 21 cm Epoch of Reionization (EoR) structure are subject to systematics originating from both the analysis and the ..