M. G. Hoare
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View article: The SARAO MeerKAT Galactic Plane Survey compact source catalogue
The SARAO MeerKAT Galactic Plane Survey compact source catalogue Open
We present a catalogue of compact sources detected in the SARAO MeerKAT 1.3 GHz Galactic Plane Survey (SMGPS). We extract 510 599 compact sources, with areas less than five 8” beams, from the survey maps covering the regions 252○ < l &l…
View article: High-resolution radio observations of massive protostars in the SARAO MeerKAT Galactic Plane Survey
High-resolution radio observations of massive protostars in the SARAO MeerKAT Galactic Plane Survey Open
We present high-resolution observations made with the Australia Telescope Compact Array (ATCA) at 5.5 and 9.0 GHz of a sample of 28 massive protostars. These protostars were initially detected at radio wavelengths in the MeerKAT Galactic P…
View article: ALMAGAL
ALMAGAL Open
Context . A large fraction of stars form in clusters containing high-mass stars, which subsequently influences the local and galaxy-wide environment. Aims . Fundamental questions about the physics responsible for fragmenting molecular pars…
View article: Characterizing the Multiple Protostellar System VLA 1623-2417 with JWST, ALMA, and VLA: Outflow Origins, Dust Growth, and an Unsettled Disk
Characterizing the Multiple Protostellar System VLA 1623-2417 with JWST, ALMA, and VLA: Outflow Origins, Dust Growth, and an Unsettled Disk Open
Utilizing the James Webb Space Telescope (JWST), the Atacama Large Millimeter/submillimeter Array (ALMA), and the Very Large Array (VLA), we present high angular resolution (0 06–0 42), multiwavelength (4 μ m–3 cm) observations…
View article: Characterising the multiple protostellar system VLA 1623-2417 with JWST, ALMA and VLA: outflow origins, dust growth and an unsettled disk
Characterising the multiple protostellar system VLA 1623-2417 with JWST, ALMA and VLA: outflow origins, dust growth and an unsettled disk Open
Utilising JWST, ALMA and the VLA we present high angular resolution (0.06''- 0.42''), multi-wavelength (4 micron - 3cm) observations of the VLA 1623-2417 protostellar system to characterise the origin, morphology and, properties of the con…
View article: High-resolution studies of the C-band and L-band radio continuum of the periodic methanol maser source G9.62+0.20E and surrounding sources
High-resolution studies of the C-band and L-band radio continuum of the periodic methanol maser source G9.62+0.20E and surrounding sources Open
High-resolution observations of the C-band and L-band radio continuum of the hypercompact H ii region $\rm G 9.62$+$\rm 0.20 E$ conducted with the e-MERLIN interferometric array are presented. A flux density of $\rm 2.25 \pm 0.20$ $\rm mJy…
View article: Non-thermal radio emission from massive protostars in the SARAO MeerKAT Galactic Plane Survey
Non-thermal radio emission from massive protostars in the SARAO MeerKAT Galactic Plane Survey Open
We present an investigation of the L-band emission from known massive young stellar objects in the South African Radio Astronomy Observatory MeerKAT Galactic Plane Survey to search for non-thermal radio emitters in the sample. A total of 3…
View article: The SARAO MeerKAT 1.3 GHz Galactic Plane Survey
The SARAO MeerKAT 1.3 GHz Galactic Plane Survey Open
We present the SARAO MeerKAT Galactic Plane Survey (SMGPS), a 1.3 GHz continuum survey of almost half of the Galactic Plane (251° ≤l ≤ 358° and 2° ≤l ≤ 61° at |b| ≤ $1{_{.}^{\circ}}5$). SMGPS is the largest, most sensitive, and highest ang…
View article: The cradle of life and the SKA
The cradle of life and the SKA Open
We provide an overview of the exciting capabilities of the SKA in the Cradle of Life theme. With the deployment of the high frequency band 5 receivers, the phase 1 of the SKA can conduct headline science in the study of the earliest stages…
View article: The SARAO MeerKAT 1.3 GHz Galactic Plane Survey
The SARAO MeerKAT 1.3 GHz Galactic Plane Survey Open
We present the SARAO MeerKAT Galactic Plane Survey (SMGPS), a 1.3 GHz continuum survey of almost half of the Galactic Plane (251°$\le l \le$ 358°and 2°$\le l \le$ 61°at $|b| \le 1.5°$). SMGPS is the largest, most sensitive and highest angu…
View article: Tracing Evolution in Massive Protostellar Objects – I. Fragmentation and emission properties of massive star-forming clumps in a luminosity-limited ALMA sample
Tracing Evolution in Massive Protostellar Objects – I. Fragmentation and emission properties of massive star-forming clumps in a luminosity-limited ALMA sample Open
The role of massive (≥ 8$\, {\rm M}_{\odot }$) stars in defining the energy budget and chemical enrichment of the interstellar medium in their host galaxy is significant. In this first paper from the Tracing Evolution in Massive Protostell…
View article: Tracing Evolution in Massive Protostellar Objects (TEMPO) -- I: Fragmentation and emission properties of massive star-forming clumps in a luminosity limited ALMA sample
Tracing Evolution in Massive Protostellar Objects (TEMPO) -- I: Fragmentation and emission properties of massive star-forming clumps in a luminosity limited ALMA sample Open
The role of massive ($\geq$ 8M$_{\odot}$) stars in defining the energy budget and chemical enrichment of the interstellar medium in their host galaxy is significant. In this first paper from the Tracing Evolution in Massive Protostellar Ob…
View article: A high-resolution radio study of the L1551 IRS 5 and L1551 NE jets
A high-resolution radio study of the L1551 IRS 5 and L1551 NE jets Open
Using observations with e-MERLIN and the Karl G. Jansky Very Large Array (VLA), together with archival data from the Atacama Large Millimeter/submillimeter Array (ALMA), we obtain high-resolution radio images of two binary YSOs: L1551 IRS …
View article: A high-resolution radio study of the L1551 IRS 5 and L1551 NE jets
A high-resolution radio study of the L1551 IRS 5 and L1551 NE jets Open
Using observations with e-MERLIN and the VLA, together with archival data from ALMA, we obtain high-resolution radio images of two binary YSOs: L1551 IRS 5 and L1551 NE, covering a wide range of frequencies from 5 - 336 GHz, and resolving …
View article: SCOTCH − search for clandestine optically thick compact H<scp> ii</scp>s
SCOTCH − search for clandestine optically thick compact H<span> ii</span>s Open
This study uses archival high-frequency continuum data to expand the search for Hypercompact H ii regions and determine the conditions at which they appear, as this stage high mass star formation is short-lived and rare. We use 23 GHz cont…
View article: The coordinated radio and infrared survey for high-mass star formation – V. The CORNISH-South survey and catalogue
The coordinated radio and infrared survey for high-mass star formation – V. The CORNISH-South survey and catalogue Open
We present the first high spatial resolution radio continuum survey of the southern Galactic plane. The CORNISH project has mapped the region defined by 295° < l < 350°; |b| < 1° at 5.5 GHz, with a resolution of 2.5 arcsec (FWHM).…
View article: The Co-Ordinated Radio and Infrared Survey for High-Mass Star Formation. V. The CORNISH-South Survey and Catalogue
The Co-Ordinated Radio and Infrared Survey for High-Mass Star Formation. V. The CORNISH-South Survey and Catalogue Open
We present the first high spatial resolution radio continuum survey of the southern Galactic plane. The CORNISH project has mapped the region defined by $295^{\circ} < l < 350^{\circ}$; $|b| < 1^{\circ}$ at 5.5-GHz, with a resolution of 2.…
View article: Overview of the Maser Monitoring Organisation
Overview of the Maser Monitoring Organisation Open
The Maser Monitoring Organisation is a collection of researchers exploring the use of time-variable maser emission in the investigation of astrophysical phenomena. The forward directed aspects of research primarily involve using maser emis…
View article: Resolving the Collimation Zone of an Intermediate-mass Protostellar Jet
Resolving the Collimation Zone of an Intermediate-mass Protostellar Jet Open
We report new VLA and e-MERLIN high-resolution and -sensitivity images of the triple radio continuum source in the Serpens star-forming region. These observations allowed us to perform a deep multifrequency, multiepoch study by exploring t…
View article: Resolving the collimation zone of an intermediate-mass protostar
Resolving the collimation zone of an intermediate-mass protostar Open
We report new VLA and e-MERLIN high resolution and sensitivity images of the Triple Radio continuum Source in the Serpens star forming region. These observations allowed us to perform a deep multi-frequency, multi-epoch study by exploring …
View article: Recent updates on the Maser Monitoring Organisation
Recent updates on the Maser Monitoring Organisation Open
The Maser Monitoring Organisation (M2O) is a research community of telescope operators, astronomy researchers and maser theoreticians pursuing a joint goal of reaching a deeper understanding of maser emission and exploring its variety of u…
View article: Disk fragmentation in high-mass star formation. High-resolution observations towards AFGL 2591-VLA 3
Disk fragmentation in high-mass star formation. High-resolution observations towards AFGL 2591-VLA 3 Open
Increasing evidence suggests that, similar to their low-mass counterparts, high-mass stars form through a disk-mediated accretion process. At the same time, formation of high-mass stars still necessitates high accretion rates, and hence, h…
View article: Disk fragmentation in high-mass star formation
Disk fragmentation in high-mass star formation Open
Context. Increasing evidence suggests that, similar to their low-mass counterparts, high-mass stars form through a disk-mediated accretion process. At the same time, formation of high-mass stars still necessitates high accretion rates, and…
View article: A Galactic survey of radio jets from massive protostars
A Galactic survey of radio jets from massive protostars Open
In conjunction with a previous southern-hemisphere work, we present the largest radio survey of jets from massive protostars to date with high-resolution (∼0.04 arcsec) Jansky Very Large Array observations towards two subsamples of massive…
View article: A multi-epoch study of radio continuum emission from massive protostars
A multi-epoch study of radio continuum emission from massive protostars Open
We report the results of the Jansky Very Large Array (JVLA) observation of five massive protostars at 6 and 22.2 GHz. The aim of the study was to compare their current fluxes and positions with previous observations to search for evidence …
View article: CHIMPS2: survey description and 12CO emission in the Galactic Centre
CHIMPS2: survey description and 12CO emission in the Galactic Centre Open
The latest generation of Galactic Plane surveys is enhancing our ability to study the effects of galactic environment upon the process of star formation. We present the first data from CO Heterodyne Inner Milky Way Plane Survey 2 (CHIMPS2)…
View article: Observing protoplanetary discs with the Square Kilometre Array – I. Characterizing pebble substructure caused by forming planets
Observing protoplanetary discs with the Square Kilometre Array – I. Characterizing pebble substructure caused by forming planets Open
High-angular-resolution observations of discs at mm wavelengths (on scales of a few au) are now commonplace, but there is a current lack of a comparable angular resolution for observations at cm wavelengths. This presents a significant bar…
View article: Multiwavelength modelling of the circumstellar environment of the massive protostar AFGL 2591 VLA 3
Multiwavelength modelling of the circumstellar environment of the massive protostar AFGL 2591 VLA 3 Open
We have studied the dust density, temperature, and velocity distributions of the archetypal massive young stellar object (MYSO) AFGL 2591. Given its high luminosity ($L=2\times 10^5\, \mbox{L$_{\odot}$}$) and distance (d = 3.3 kpc), AFGL 2…
View article: A Detailed View of the Circumstellar Environment and Disk of the Forming O-star AFGL 4176 - Online Data
A Detailed View of the Circumstellar Environment and Disk of the Forming O-star AFGL 4176 - Online Data Open
These data accompany the ApJ paper Johnston et al. (2020), "A Detailed View of the Circumstellar Environment and Disk of the Forming O-star AFGL 4176" ArXiv link: https://arxiv.org/abs/2004.13739 Abstract: We present a detailed analysis of…