Zobrazeno 1 - 10
of 117
pro vyhledávání: '"B. Pindor"'
Autor:
Matthew Kolopanis, Adam P. Beardsley, Christopher H. Jordan, Nichole Barry, Q. Zheng, B. McKinley, Randall B. Wayth, E. Howard, Daniel A. Mitchell, Judd D. Bowman, J. S. B. Wyithe, Pratika Dayal, Cathryn M. Trott, Keisuke Hasegawa, Anne Hutter, Miguel F. Morales, Daniel C. Jacobs, Rachel L. Webster, Bradley Greig, Bryna J. Hazelton, A. Chokshi, S. Murray, M. Rahimi, J. L. B. Line, M. Wilensky, S. Yoshiura, Steven Tingay, Christene Lynch, B. Pindor, Keitaro Takahashi, Jonathan C. Pober, R. Byrne
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 507, 772-780. Oxford University Press
Monthly Notices of the Royal Astronomical Society, 507, 772-780. Oxford University Press
The locations of Ly-$\alpha$ emitting galaxies (LAEs) at the end of the Epoch of Reionisation (EoR) are expected to correlate with regions of ionised hydrogen, traced by the redshifted 21~cm hyperfine line. Mapping the neutral hydrogen around regions
Publikováno v:
Publications of the Astronomical Society of Australia. 39
The redshifted cosmological 21-cm signal emitted by neutral hydrogen during the first billion years of the universe is much fainter relative to other galactic and extragalactic radio emissions, posing a great challenge towards detection of the signal
Autor:
Keitaro Takahashi, B. Pindor, Shintaro Yoshiura, Hiroyuki Tashiro, Kiyotomo Ichiki, Cathryn M. Trott
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 483:2697-2711
Observation of the 21cm 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 approach for mitigating th
Autor:
Eric Howard, Keitaro Takahashi, M. Wilensky, Bryna J. Hazelton, Christene Lynch, R. C. Joseph, B. Pindor, S. Yoshiura, M. Rahimi, J. L. B. Line, Matthew Kolopanis, Bradley Greig, B. McKinley, Daniel C. Jacobs, Steven Tingay, Jonathan C. Pober, Judd D. Bowman, Zheng Zhang, Randall B. Wayth, A. Chokshi, Christopher H. Jordan, R. Byrne, Rachel L. Webster, Nichole Barry, Adam P. Beardsley, J. S. B. Wyithe, Keisuke Hasegawa, Daniel A. Mitchell, Cathryn M. Trott, Miguel F. Morales, Qian Zheng, Steven G. Murray
Observations in the lowest MWA band between $75-100$ MHz have the potential to constrain the distribution of neutral hydrogen in the intergalactic medium at redshift $\sim 13-17$. Using 15 hours of MWA data, we analyse systematics in this band such a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b146f6d1f8fd0d56e1015af66a6a8ef
Autor:
Nichole Barry, Adam Lanman, Wenyang Li, Q. Zheng, M. Wilensky, Randall B. Wayth, Kenji Hasegawa, Daniel A. Mitchell, Christopher H. Jordan, Rachel L. Webster, Jonathan C. Pober, R. Byrne, Cathryn M. Trott, Steven Tingay, Miguel F. Morales, M. Rahimi, Bryna J. Hazelton, J. L. B. Line, Daniel C. Jacobs, Zheng Zhang, A. Chokshi, Steven G. Murray, Keitaro Takahashi, Shintaro Yoshiura, Christene Lynch, R. C. Joseph, B. Pindor, Benjamin McKinley, Adam P. Beardsley
Publikováno v:
Publications of the Astronomical Society of Australia. 37
Precise instrumental calibration is of crucial importance to 21-cm cosmology experiments. The Murchison Widefield Array's (MWA) Phase II compact configuration offers us opportunities for both redundant calibration and sky-based calibration algorithms
Autor:
Nichole Barry, Cathryn M. Trott, B. Pindor, Bradley Greig, Rachel L. Webster, Simon J. Mutch, J. Stuart B. Wyithe
We use the latest multi-redshift ($z=6.5-8.7$) upper limits on the 21-cm signal from the Murchison Widefield Array (MWA) to explore astrophysical models which are inconsistent with the data. These upper limits are achieved using 298 h of carefully ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bad70944af371beff231be01abb0eb79
Autor:
John Morgan, B. Pindor, Randall B. Wayth, Daniel A. Mitchell, M. Rahimi, Christopher H. Jordan, Cathryn M. Trott, Pietro Procopio, Steven G. Murray
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 471:3974-3987
We detail new techniques for analysing ionospheric activity, using Epoch of Reionisation (EoR) datasets obtained with the Murchison Widefield Array (MWA), calibrated by the `Real-Time System' (RTS). Using the high spatial- and temporal-resolution inf
Autor:
Rachel L. Webster, Keitaro Takahashi, J. L. B. Line, Jonathan C. Pober, R. Byrne, Christene Lynch, R. C. Joseph, Christopher H. Jordan, Steven G. Murray, B. Pindor, M. Wilensky, Bryna J. Hazelton, Nichole Barry, Steven Tingay, B. McKinley, Daniel A. Mitchell, Shintaro Yoshiura, Kenji Kubota, W. Li, M. Walker, J. S. B. Wyithe, Kenji Hasegawa, Shih Ching Fu, Cathryn M. Trott, Miguel F. Morales, Q. Zheng, Randall B. Wayth, T. Kaneuji, M. Rahimi
We explore methods for robust estimation of the 21 cm signal from the Epoch of Reionisation (EoR). A Kernel Density Estimator (KDE) is introduced for measuring the spatial temperature fluctuation power spectrum from the EoR. The KDE estimates the und
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d7a5e9b531f3353a1d94e792e467681
http://arxiv.org/abs/1904.11623
http://arxiv.org/abs/1904.11623
Autor:
Adam Lanman, J. L. B. Line, Cathryn M. Trott, Miguel F. Morales, Jonathan C. Pober, Christene Lynch, Bryna J. Hazelton, R. C. Joseph, R. Byrne, Judd D. Bowman, Daniel Jacobs, B. Pindor, Christopher H. Jordan, David L. Kaplan, A. P. Beardsley, D. Kenney, Tom Booler, Kenji Kubota, Melanie Johnston-Hollitt, S. S. Murray, Steven Tingay, T. M. O. Franzen, M. Wilensky, Andrew R. Williams, Chen Wu, Rachel L. Webster, S. Yoshiura, M. Walker, D. Pallot, Daniel A. Mitchell, G. Sleap, Qinghua Zheng, Keitaro Takahashi, David Emrich, L. Horsley, Kenji Hasegawa, Brian Crosse, K. Steele, J. Riding, B. McKinley, Ian Sullivan, Nichole Barry, Wenyang Li, R. B. Wayth, J. S. B. Wyithe, T. Kaneuji, M. Rahimi
Publikováno v:
The Astrophysical Journal. 887:141
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 calibration. The highly r
Autor:
U. Shankar, Daniel C. Jacobs, J. S. B. Wyithe, Steven G. Murray, Bryna J. Hazelton, Steven Tingay, Daniel A. Mitchell, Jonathan C. Pober, Ravi Subrahmanyan, Judd D. Bowman, Cathryn M. Trott, Frank H. Briggs, Christopher H. Jordan, Miguel F. Morales, Benjamin McKinley, B. Pindor, Rachel L. Webster, Randall B. Wayth, Max Tegmark, Jacqueline N. Hewitt, Shiv K. Sethi, Adam P. Beardsley, J. L. B. Line
Structure imprinted in foreground extragalactic point sources by ionospheric refraction has the potential to contaminate Epoch of Reionisation (EoR) power spectra of the 21~cm emission line of neutral hydrogen. The alteration of the spatial and spect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a204962b6d1595adaf5e86f5669ea545