activity
20162026
most citedMeqSilhouette : A mm-VLBI observation and signal corruption simulator

23 citations · 87 across the 12 of their papers we have counts for

collaborators
Showing astro-ph.GAShow all

9 papers · 1 filter

astro-ph.GA2026

MeerKAT discovery of a high-redshift strongly-lensed hydroxyl gigamaser

Thato E. Manamela, Roger P. Deane, Tariq Blecher +3

At low redshifts, hydroxyl megamasers (OHMs) have been shown to trace galaxy mergers, obscured starbursts, high molecular gas densities, and candidate dual supermassive black hole…

astro-ph.GA2025★ 1 cited

Neutral Atomic Hydrogen in a Star-forming Galaxy 7 Billion Years Ago

Graham Lawrie, Roger Deane, Tariq Blecher +3

Neutral atomic hydrogen (HI) constitutes a key phase of the cosmic baryon cycle, bridging the ionised circumgalactic medium and the star-forming molecular gas. Yet, nearly 75 years…

astro-ph.GA2025

MeerKAT-derived HI kinematics and the Baryonic Tully-Fisher Relation in the X-ray luminous cluster Abell 3408

Xola Ndaliso, Tariq Blecher, Roger Deane +1

Significant advances in observational capabilities are continuously transforming our understanding of the dense environment of galaxy clusters and its impact on individual galaxies…

astro-ph.GA2024

On the implausible physical implications of a claimed lensed neutral hydrogen detection at redshift z = 1.3

Roger P. Deane, Tariq Blecher, Danail Obreschkow +1

The Square Kilometre Array mid-frequency array will enable high-redshift detections of neutral hydrogen (HI) emission in galaxies, providing important constraints on the evolution…

astro-ph.GA2024★ 4 cited

Neutral hydrogen lensing simulations in the Hubble Frontier Fields

Tariq Blecher, Roger Deane, Danail Obreschkow +1

Cold gas evolution ties the formation of dark matter halos to the star formation history of the universe. A primary component of cold gas, neutral atomic hydrogen (HI), can be trac…

astro-ph.GA2022★ 12 cited

LADUMA: Discovery of a luminous OH megamaser at

Marcin Glowacki, Jordan D. Collier, Amir Kazemi-Moridani +65

In the local Universe, OH megamasers (OHMs) are detected almost exclusively in infrared-luminous galaxies, with a prevalence that increases with IR luminosity, suggesting that they…

astro-ph.GA2021★ 3 cited

HI in and behind the Hubble Frontier Field Clusters: A Deep MeerKAT Pilot Search out to

Shilpa Ranchod, Roger Deane, Danail Obreschkow +2

The Hubble Frontier Fields (HFF) are a selection of well-studied galaxy clusters used to probe dense environments and distant gravitationally lensed galaxies. We explore the 21cm n…

astro-ph.GA2021★ 8 cited

MIGHTEE-HI: Discovery of an HI-rich galaxy group at z = 0.044 with MeerKAT

Shilpa Ranchod, Roger P. Deane, Anastasia A. Ponomareva +13

We present the serendipitous discovery of a galaxy group in the XMM-LSS field with MIGHTEE Early Science observations. Twenty galaxies are detected in HI in this group…

astro-ph.GA2019★ 16 cited

Towards the first detection of strongly lensed HI emission

Tariq Blecher, Roger Deane, Ian Heywood +1

We report interferometric observations tuned to the redshifted neutral hydrogen (HI) 21cm emission line in three strongly lensed galaxies at with the Giant Metrewave R…