57 citations · 115 across the 13 of their papers we have counts for
10 papers · 1 filter
A FLASH HI absorption search in compact sources in the pilot ASKAP interplanetary scintillation field
Paris E. Gordon-Hall, Emily F. Kerrison, Elizabeth K. Mahony +13
In this pilot study, we use data from the First Large Absorption Survey in HI (FLASH) to search for redshifted HI 21cm absorption at towards 157 bright radio sources with…
One sightline, many systems: a FLASH discovery of HI towards scintillating quasar PKS 0405-385
E. F. Kerrison, H. Yoon, E. M. Sadler +15
We report the discovery of an intervening 21\,cm absorption line at z = 0.882 towards the z = 1.284 quasar PKS 0405-385, identified in the First Large Absorption Survey in HI (FLAS…
The ASKAP-FLASH survey: A first look at the multiwavelength properties and redshift distribution of compact radio sources
W. Roster, E. M. Sadler, E. K. Mahony +15
We present the characterisation, including a photometric redshift (photo-) analysis, of the optical counterparts (CTPs) to over 45 000 bright ( 30 mJy) comp…
RadioSED II: discovering the peaked spectrum radio sources in Stripe 82
E. F. Kerrison, E. M. Sadler, V. A. Moss +6
This paper is the second in a series presenting \textsc{RadioSED}, a Bayesian inference framework for constructing, modelling and classifying radio spectral energy distributions fr…
Why so young? A curious connection between the broadband flux and neutral gas content of AGN
Emily F. Kerrison, Elaine M. Sadler, Vanessa A. Moss +1
We present here a study of the broadband spectral properties of 33 sources detected in HI absorption as part of the ASKAP-FLASH Pilot Surveys. We outline our approach to spectral c…
RadioSED I: Bayesian inference of radio SEDs from inhomogeneous surveys
Emily F. Kerrison, James R. Allison, Vanessa A. Moss +2
We present here RadioSED, a Bayesian inference framework tailored to modelling and classifying broadband radio spectral energy distributions (SEDs) using only data from publicly-re…
The Metallicities of Five Small High-Velocity Clouds
Trisha Ashley, Andrew J. Fox, Felix J. Lockman +5
High-velocity clouds (HVCs) are multi-phase gas structures whose velocities (|v_LSR|>100 km/s) are too high to be explained by Galactic disk rotation. While large HVCs are well cha…
Apertif view of the OH Megamaser IRAS 10597+5926: OH 18 cm satellite lines in wide-area HI surveys
Kelley M. Hess, H. Roberts, H. Dénes +26
We present the serendipitous detection of the two main OH maser lines at 1667 and 1665 MHz associated with IRAS 10597+5926 at z = 0.19612 in the untargeted Apertif Wide-area Extrag…
Tracing dense and diffuse neutral hydrogen in the halo of the Milky Way
Vanessa A. Moss, Felix J. Lockman, Naomi M. McClure-Griffiths
We have combined observations of Galactic high-velocity HI from two surveys: a very sensitive survey from the Green Bank 140ft Telescope with limited sky coverage, and the less sen…
Ultra- and Hyper-compact HII regions at 20 GHz
Tara Murphy, Martin Cohen, Ronald D. Ekers +3
We present radio and infrared observations of 4 hyper-compact HII regions and 4 ultra-compact HII regions in the southern Galactic plane. These objects were selected from a blind s…