Australian square kilometre array pathfinder: I. system description

AW Hotan, JD Bunton, AP Chippendale… - Publications of the …, 2021 - cambridge.org
In this paper, we describe the system design and capabilities of the Australian Square
Kilometre Array Pathfinder (ASKAP) radio telescope at the conclusion of its construction …

The First Large Absorption Survey in H i (FLASH): I. Science goals and survey design

JR Allison, EM Sadler, AD Amaral, T An… - Publications of the …, 2022 - cambridge.org
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 …

From EMBER to FIRE: predicting high resolution baryon fields from dark matter simulations with deep learning

M Bernardini, R Feldmann… - Monthly Notices of …, 2022 - academic.oup.com
Hydrodynamic simulations provide a powerful, but computationally expensive, approach to
study the interplay of dark matter and baryons in cosmological structure formation. Here, we …

FLASH early science – discovery of an intervening H i 21-cm absorber from an ASKAP survey of the GAMA 23 field

JR Allison, EM Sadler, S Bellstedt… - Monthly Notices of …, 2020 - academic.oup.com
We present early science results from the First Large Absorption Survey in H i (FLASH), a
spectroscopically blind survey for 21-cm absorption lines in cold hydrogen (H i) gas at …

Spectral variability of radio sources at low frequencies

K Ross, JR Callingham, N Hurley-Walker… - Monthly Notices of …, 2021 - academic.oup.com
Spectral variability of radio sources encodes information about the conditions of intervening
media, source structure, and emission processes. With new low-frequency radio …

A Search for Intrinsic H i 21 cm and OH 18 cm Absorption toward Compact Radio Sources

K Grasha, J Darling, A Bolatto, AK Leroy… - The Astrophysical …, 2019 - iopscience.iop.org
We present the results of a large search for intrinsic H i 21 cm and OH 18 cm absorption in
145 compact radio sources in the redshift range 0.02< z< 3.8 with the Green Bank …

A successful search for intervening 21 cm H i absorption in galaxies at 0.4 < z <1.0 with the Australian square kilometre array pathfinder (ASKAP)

EM Sadler, VA Moss, JR Allison… - Monthly Notices of …, 2020 - academic.oup.com
We have used the Australian Square Kilometre Array Pathfinder (ASKAP) radio telescope to
search for intervening 21 cm neutral hydrogen (H i) absorption along the line of sight to 53 …

The FLASH pilot survey: an H i absorption search against MRC 1-Jy radio sources

J Aditya, H Yoon, JR Allison, T An… - Monthly Notices of …, 2024 - academic.oup.com
We report an ASKAP search for associated H i 21-cm absorption against bright radio
sources from the Molonglo Reference Catalogue (MRC) 1-Jy sample. The search uses pilot …

FLASH pilot survey: detections of associated 21 cm H i absorption in GAMA galaxies at 0.42 < z < 1.00

R Su, EM Sadler, JR Allison, EK Mahony… - Monthly Notices of …, 2022 - academic.oup.com
We present the results of a search for associated 21 cm H i absorption at redshift 0.42< z<
1.00 in radio-loud galaxies from three Galaxy And Mass Assembly (GAMA) survey fields …

Extragalactic H i 21-cm absorption line observations with the Five-hundred-meter Aperture Spherical radio Telescope

B Zhang, M Zhu, ZZ Wu, QZ Yu, P Jiang… - Monthly Notices of …, 2021 - academic.oup.com
We present a pilot study of extragalactic H i 21-cm absorption lines using the Five-hundred-
meter Aperture Spherical radio Telescope (FAST). We observed five continuum sources with …