Publications (39)
Performance of a Small Array of Imaging Air Cherenkov Telescopes sited in Australia
Simon Lee, Sabrina Einecke, Gavin Rowell +10
As TeV gamma-ray astronomy progresses into the era of the Cherenkov Telescope Array (CTA), there is a desire for the capacity to instantaneously follow up on transient phenomena an…
Fast as Potoroo: Radio Continuum Detection of a Bow-Shock Pulsar Wind Nebula Powered by Pulsar J1638-4713
Sanja LazareviÄ, Miroslav D. FilipoviÄ, Shi Dai +19
We report the discovery of a bow-shock pulsar wind nebula (PWN), named Potoroo, and the detection of a young pulsar J1638-4713 that powers the nebula. We present a radio continuum…
A New Radio Continuum Study of the Large Magellanic Cloud Supernova Remnant MC SNR J0519-6902
Rami Z. E. Alsaberi, Miroslav D. Filipovic, Hidetoshi Sano +12
We present a new radio continuum study of the Large Magellanic Cloud supernova remnant (SNR) MC SNR J0519-6902. With a diameter of ~8 pc, this SNR shows a radio ring-like morpholog…
Extended Carbon Line Emission in the Galaxy: Searching for Dark Molecular Gas along the G328 Sightline
Michael G. Burton, Michael C. B. Ashley, Catherine Braiding +6
We present spectral data cubes of the [CI] 809GHz, 12CO 115GHz, 13CO 110GHz and HI 1.4GHz line emission from an 1 square degree region along the l = 328° (G328) sightline in the G…
A dense gas survey of the gamma-ray sources HESS J1731-347 and HESS J1729-345
Nigel Maxted, Gavin Rowell, Phoebe de Wilt +8
The results of Mopra molecular spectral line observations towards the supernova remnant HESSJ1731-347 (G353.6-0.7) and the unidentified gamma-ray source HESSJ1729-345 are presented…
Searches for counterparts of gravitational waves at very high energies with H.E.S.S
Monica Seglar-Arroyo, Halim Ashkar, Simon Bonnefoy +10
The recent milestones in multi-messenger astronomy have opened new ways to study the Unverse. The unprecedented gravitational wave (GW) follow-up campaigns established the power th…
The Interstellar Medium White Paper
Michael Burton, Roland Crocker, John Dickey +6
The interstellar medium is the engine room for galactic evolution. While much is known about the conditions within the ISM, many important areas regarding the formation and evoluti…
Probing The Local Environment of the Supernova Remnant HESS J1731-347 with CO and CS Observations
Nigel Maxted, Michael Burton, Catherine Braiding +6
The shell-type supernova remnant HESS J1731347 emits TeV gamma-rays, and is a key object for the study of the cosmic ray acceleration potential of supernova remnants. We use 0.5…
Measurement of night sky brightness in southern Australia
Daniel Hampf, Gavin Rowell, Neville Wild +3
Night sky brightness is a major source of noise both for Cherenkov telescopes as well as for wide-angle Cherenkov detectors. Therefore, it is important to know the level of night s…
The Gamma Ray Origin in RXJ0852.0-4622 Quantifying the Hadronic and Leptonic Components: Further Evidence for the Cosmic Ray Acceleration in Young Shell-type SNRs
Yasuo Fukui, Maki Aruga, Hidetoshi Sano +5
Fukui et al. (2021) quantified the hadronic and leptonic gamma rays in the young TeV gamma ray shell-type supernova remnant (SNR) RXJ1713.7-3946 (RXJ1713), and demonstrated that th…
A 3D Diffusive and Advective Model of Electron Transport Applied to the Pulsar Wind Nebula HESS J1825-137
Tiffany Collins, Gavin Rowell, Sabrina Einecke +3
HESS J1825-137 is one of the most powerful and luminous TeV gamma-ray pulsar wind nebulae (PWNe), making it an excellent laboratory to study particle transportation around pulsars.…
The Mopra Southern Galactic Plane CO Survey
Michael Burton, Catherine Braiding, Christian Glueck +15
We present the first results from a new carbon monoxide (CO) survey of the southern Galactic plane being conducted with the Mopra radio telescope in Australia. The 12CO, 13CO and C…
Pursuing the origin of the gamma rays in RX J1713.73946 quantifying the hadronic and leptonic components
Yasuo Fukui, Hidetoshi Sano, Yumiko Yamane +5
We analyzed the TeV gamma-ray image of a supernova remnant RX J1713.73946 (RX J1713) through a comparison with the interstellar medium (ISM) and the non-thermal X-rays. The gamm…
Optimising an Array of Cherenkov Telescopes in Australia for the Detection of TeV Gamma-Ray Transients
Simon Lee, Sabrina Einecke, Gavin Rowell +9
As TeV gamma-ray astronomy progresses into the era of the Cherenkov Telescope Array (CTA), instantaneously following up on gamma-ray transients is becoming more important than ever…
ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions
Hidetoshi Sano, Kisetsu Tsuge, Kazuki Tokuda +14
We report the first evidence for high-mass star formation triggered by collisions of molecular clouds in M33. Using the Atacama Large Millimeter/submillimeter Array, we spatially r…
Molecular Clouds as Cosmic Ray Laboratories
Sabrina Casanova, Felix A. Aharonian, Yasuo Fukui +9
We will here discuss how the gamma-ray emission from molecular clouds can be used to probe the cosmic ray flux in distant regions of the Galaxy and to constrain the highly unknown…
The Carbon Inventory in a Quiescent, Filamentary Molecular Cloud in G328
Michael Burton, Michael Ashley, Catherine Braiding +6
We present spectral line images of [CI] 809 GHz, CO J=1-0 115 GHz and HI 1.4 GHz line emission, and calculate the corresponding C, CO and H column densities, for a sinuous, quiesce…
Case study of a national-level academic conference organised in hybrid mode at low cost
Violet M. Harvey, Simon Lee, Bruce Dawson +2
In July 2025, the University of Adelaide hosted the Astronomical Society of Australia's Annual Scientific Meeting on its North Terrace campus. We ran the conference in a hybrid mod…
Search for continuous gravitational waves from HESS~J1427-608 with a hidden Markov model
Deeksha Beniwal, Patrick Clearwater, Liam Dunn +4
We present a search for continuous gravitational wave signals from an unidentified pulsar potentially powering HESS~J1427-608, a spatially unresolved TeV point source detected by t…
New Optically Identified Supernova Remnants in the Large Magellanic Cloud
Miranda Yew, Miroslav D. FilipoviÄ, Milorad Stupar +20
We present a new optical sample of three Supernova Remnants and 16 Supernova Remnant (SNR) candidates in the Large Magellanic Cloud(LMC). These objects were originally selected usi…
Cosmic Rays from SNRs and TeV Gamma-Ray Astronomy
Gavin Rowell
The origin of Galactic cosmic rays is still a burning question that forms a major motivation for developments in ground-based gamma-ray astronomy. SNRs are long-thought to be sites…
Triggered high-mass star formation in the HII region W28A2: A cloud-cloud collision scenario
Katsuhiro Hayashi, Satoshi Yoshiike, Rei Enokiya +15
We report on a study of the high-mass star formation in the the HII region W28A2 by investigating the molecular clouds extended over ~5-10 pc from the exciting stars using the 12CO…
The Milky Way Heart: Investigating molecular gas and gamma-ray morphologies in the Central Molecular Zone
David I. Jones, Michael Burton, Paul Jones +3
Since the discovery of a broad distribution of very high energy (VHE; >0.1 TeV) gamma-rays in the Central Molecular Zone (CMZ) of the Galaxy in 2006 by the HESS collaboration, the…
Stingrays in the radio sky: Two unusual diffuse radio relic sources in the direction of the Magellanic Stream
Zachary J Smeaton, Miroslav D Filipovic, Barbel S Koribalski +17
We present the discovery of two extended, low surface brightness radio continuum sources, each consisting of a near-circular body and an extended tail of emission, nicknamed Stingr…
Teleios (G305.4-2.2) -- the mystery of a perfectly shaped new Galactic supernova remnant
Miroslav D. Filipovic, Zachary J. Smeaton, Roland Kothes +35
We present the serendipitous radio-continuum discovery of a likely Galactic supernova remnant (SNR) G305.4-2.2. This object displays a remarkable circular symmetry in shape, making…
EMU Detection of a Large and Low Surface Brightness Galactic SNR G288.8-6.3
Miroslav D. FilipoviÄ, Shi Dai, Bojan Arbutina +36
We present the serendipitous detection of a new Galactic Supernova Remnant (SNR), G288.8-6.3 using data from the Australian Square Kilometre Array Pathfinder (ASKAP)-Evolutionary M…
Molecular Shocks and the Gamma-ray Clouds of the W28 Supernova Remnant
Nigel Maxted, Gavin Rowell, Phoebe de Wilt +5
Interstellar medium clouds in the W28 region are emitting gamma-rays and it is likely that the W28 supernova remnant is responsible, making W28 a prime candidate for the study of c…
The ground-based large-area wide-angle gamma-ray and cosmic-ray experiment HiSCORE
Martin Tluczykont, Daniel Hampf, Dieter Horns +4
The question of the origin of cosmic rays and other questions of astroparticle and particle physics can be addressed with indirect air-shower observations above 10 TeV primary ener…
eROSITA X-ray Analysis of the PeVatron Candidate Westerlund 1
Konstantin Haubner, Manami Sasaki, Alison Mitchell +7
It is unclear which fraction of cosmic rays above an energy of 1 PeV is accelerated by the observed Galactic PeVatron population. These sources' gamma-ray data is typically degener…
Radio Observations of Supernova Remnant G1.9+0.3
Kieran J. Luken, Miroslav D. FilipoviÄ, Nigel I. Maxted +18
We present 1 to 10GHz radio continuum flux density, spectral index, polarisation and Rotation Measure (RM) images of the youngest known Galactic Supernova Remnant (SNR) G1.9+0.3, u…
The Cherenkov Telescope Array view of the Galactic Center region
Aion Viana, Sofia Ventura, Daniele Gaggero +22
Among all the high-energy environments of our Galaxy, the Galactic Center (GC) region is definitely the richest. It harbors a large amount of non-thermal emitters, including the cl…
H.E.S.S. observations of massive stellar clusters
Stefan Ohm, Dieter Horns, Olaf Reimer +6
Stellar clusters are potential acceleration sites of very-high-energy (VHE, E > 100GeV) particles since they host supernova remnants (SNRs) and pulsar wind nebulae (PWNe). Addition…
Gas Kinematics and Cosmic-Ray Acceleration in the Gamma-ray SNRs W41 and G22.7-0.2
Takeru Murase, Hidetoshi Sano, Kohei Matsubara +13
We present a study of the interstellar medium associated with the two middle-aged supernova remnants (SNRs) W41 and G22.7-0.2, both detected in TeV gamma-rays. Using high-angular-r…
Gamma-ray burst observations with H.E.S.S
Pak-Hin Tam, Paula Chadwick, Yves Gallant +4
The High Energy Stereoscopic System (H.E.S.S.) consists of four Imaging Atmospheric Cherenkov Telescopes (IACTs) in Namibia for the detection of cosmic very-high-energy (VHE) gamma…
Predictions for gamma-rays from clouds associated with supernova remnant PeVatrons
Alison Mitchell, Gavin Rowell, Silvia Celli +1
Interstellar clouds can act as target material for hadronic cosmic rays; gamma-rays produced through inelastic proton-proton collisions and spatially associated with the clouds pro…
The Mopra Southern Galactic Plane CO Survey - Data Release 1
Catherine Braiding, Michael G. Burton, Rebecca Blackwell +13
We present observations of the first ten degrees of longitude in the Mopra carbon monoxide (CO) survey of the southern Galactic plane (Burton et al. 2013), covering Galactic longit…
SKAO and Gamma-Ray Synergies
Gianluca Castignani, Gavin Rowell, Arnau Aguasca-Cabot +26
A wide variety of Galactic and extragalactic sources are known to emitradiation across the entire electromagnetic spectrum, including both transient and steady-state phenomena. A f…
Optical reconstruction of dust in the region of SNR RX J1713.7-3946 from astrometric data
Reimar Leike, Silvia Celli, Alberto Krone-Martins +5
The origin of the radiation observed in the region of the supernova remnant RX J1713.7-3946, one of the brightest TeV emitters, has been debated since its discovery. The existence…
RCW 36 in the Vela Molecular Ridge: Evidence for a high-mass star cluster formation triggered by Cloud-Cloud Collision
Hidetoshi Sano, Rei Enokiya, Katsuhiro Hayashi +21
A collision between two molecular clouds is one possible candidate for high-mass star formation. The HII region RCW 36, located in the Vela molecular ridge, contains a young star c…