Web Access Research Portal

Researcher: Ellingsen, SP (Professor Simon Ellingsen)

Research Fields

Galactic Astronomy
Cosmology and Extragalactic Astronomy
Seismology and Seismic Exploration
High Energy Astrophysics; Cosmic Rays
Planetary Science (excl. Extraterrestrial Geology)
Geodesy
Astronomical and Space Sciences
Astronomical and Space Instrumentation
Physical Sciences
Algebra and Number Theory
Magnetism and Palaeomagnetism
Broadband and Modem Technology
Navigation and Position Fixing
Geodynamics
Stellar Astronomy and Planetary Systems

Research Impact

Expanding Knowledge in the Physical Sciences
Expanding Knowledge in the Earth Sciences
Air Force
Information and Communication Services
Scientific Instruments
Atmospheric Processes and Dynamics
Education and Training Systems
Water Allocation and Quantification

Career Best Publications

12.2-GHz methanol masers towards 1.2-mm dust clumps: quantifying high-mass star formation evolutionary schemes; Monthly Notices of the Royal Astronomical Society
A survey of the Galactic plane for 6.7-GHz methanol masers .1. l=325 degrees-335 degrees; b=-0 degrees.53-0 degrees.53; Monthly Notices of the Royal Astronomical Society
First cosmological constraints on the proton-to-electron massc ratio from observations of rotational transitions of methanol; Astrophysical Journal Letters
Galactic Methanol Masers at 6.6 GHz; Monthly Notices of the Royal Astronomical Society
Methanol Masers: Reliable Tracers of the Early Stages of High-Mass Star Formation; The Astrophysical Journal
The 6-GHz multibeam maser survey - I . Techniques; Monthly Notices of the Royal Astronomical Society
The protostellar mass limit for 6.7 GHz methanol masers I. A low-mass YSO survey; Astronomy & Astrophysics

Research Publications

12.2-GHz methanol maser methanol multibeam follow-up catalogue - II. Longitude range 186°-330°; Monthly Notices of the Royal Astronomical Society
12.2-GHz methanol maser MMB follow-up catalogue - I. Longitude range 330 degrees to 10 degrees; Monthly Notices of the Royal Astronomical Society
12.2-GHz methanol maser MMB follow-up catalogue – III. Longitude range 10° to 20°; Monthly Notices of the Royal Astronomical Society
12.2-GHz methanol maser MMB follow-up catalogue – IV. Longitude range 20°–60°; Monthly Notices of the Royal Astronomical Society
12.2-GHz methanol masers towards 1.2-mm dust clumps: quantifying high-mass star formation evolutionary schemes; Monthly Notices of the Royal Astronomical Society
37 GHz methanol masers: Horsemen of the apocalypse for the class II methanol maser phase?; The Astrophysical Journal: An International Review of Astronomy and Astronomical Physics
6.7-GHz methanol maser associated outflows: an evolutionary sequence; Monthly Notices of the Royal Astronomical Society
A 95 GHz class I methanol maser survey toward a sample of glimpse point sources associated with BGPS clumps; Astrophysical Journal. Supplement Series
A 95 GHz class I methanol maser survey toward glimpse extended green objects (EGOs); The Astrophysical Journal Supplement Series
A GLIMPSE-based search for 6.7 GHz methanol masers and the lifetime of their spectral features; Monthly Notices of the Royal Astronomical Society
A Compact Extreme Scattering Event Cloud Toward AO 0235+164; The Astrophysical Journal Letters
A comprehensive search for extragalactic 6.7-GHz methanol masers; Monthly Notices of the Royal Astronomical Society
A Counterjet in the Nucleus of Centaurus A; 175th Symposium of the International Astronomical Union
A Methanol Maser Survey of IRAS-Selected Regions in the Magellanic Clouds; The Astrophysical Journal
A search for 22-GHz water masers within the giant molecular cloud associated with RCW 106; Monthly Notices of the Royal Astronomical Society
A search for 4750- and 4765-MHz OH masers in southern star-forming regions; Monthly Notices of the Royal Astronomical Society
A search for 85.5- and 86.6-GHz methanol maser emission; Monthly Notices of the Royal Astronomical Society
A Search for H2O Maser Emission in Southern Active Galactic Nuclei and Star-Forming Galaxies: Discovery of a Maser in the Edge-On Galaxy IRAS F01063-8034; The Astrophysical Journal
A search for periodic emissions at the Wow locale; The Astrophysical Journal
A search for water masers associated with class II methanol masers – I. Longitude range 6°–20°; Monthly Notices of the Royal Astronomical Society
A search for water masers associated with class II methanol masers – II. Longitude range 341° to 6°; Monthly Notices of the Royal Astronomical Society
A Sensitive Search for Predicted Methanol Maser Transitions with the Australia Telescope Compact Array; Publications of the Astronomical Society of Australia
A Southern Hemisphere Observing Program to Strengthen the ICRF; International VLBI Service for Geodesy and Astrometry, 2000 General Meeting Proceedings
A survey of the Galactic plane for 6.7-GHz methanol masers .1. l=325 degrees-335 degrees; b=-0 degrees.53-0 degrees.53; Monthly Notices of the Royal Astronomical Society
A VLBI Survey of 461 Southern Flat Spectrum Sources; IAU Colloquium 164: Radio Emission from Galactic and Extragalactic Compact Sources
A warped accretion disk and wide-angle outflow in the inner parsec of the Circinus galaxy; The Astrophysical Journal
A water maser survey towards the Galactic Centre; Monthly Notices of the Royal Astronomical Society
Accurate Astrometry of 22 Southern Hemisphere Radio Sources; The Astronomical Journal
Accurate OH maser positions from the SPLASH pilot region; The Astrophysical Journal Supplement Series
An evolutionary timeline for high-mass star formation; Science with Parkes @ 50 Years Young
Annual cycles in the interstellar scintillation time-scales of PKS B1519-273 and PKS B1622-253; Monthly Notices of the Royal Astronomical Society
Annual Modulation of the Time Scales on the Southern Scintillator PMN J1326-5256; Approaching Micro-Arcsecond Resolution with VSOP-2: Astrophysics and Technologies
Astrometry of 25 Southern Hemisphere Radio Sources from a VLBI Short-Baseline Survey; The Astronomical Journal
ATCA survey of H2O masers in the Large Magellanic Cloud; Monthly Notices of the Royal Astronomical Society
BL LAC OBJECT PKS B1144−379: An extreme scintillator; The Astrophysical Journal Letters
Class I methanol masers in the outflow of IRAS 16 547-4247; Monthly Notices of the Royal Astronomical Society
Class I methanol masers: masers with extended green objects; Monthly Notices of the Royal Astronomical Society
Class I methanol megamasers: a potential probe of starburst activity and feedback in active galaxies; Monthly Notices of the Royal Astronomical Society
Class II Methanol Masers and Vicinities of Young Stellar Objects; The 3rd Cologne-Zermatt Symposium on the Physics and Chemistry of the Interstellar Medium
Class II Methanol Masers in Star Formation Regions
Comparison of Three Statistical Classification Techniques for Maser Identification; Publications of the Astronomical Society of Australia
Confirmation of the exclusive association between 6.7-GHz methanol masers and high-mass star formation regions; Monthly Notices of the Royal Astronomical Society
Constraining the properties of 1.2-mm dust clumps that contain luminous water masers; Monthly Notices of the Royal Astronomical Society
Continuum Emission Associated with 6.7-GHz Methanol Masers; Royal Astronomical Society. Monthly Notices
Cosmic: Microarcsecond Resolution with a 30 Meter Radio Telescope; The Astronomical Journal
Deconvolution enhanced direction of arrival estimation using one- and three-component seismic arrays applied to ocean induced microseisms; Geophysical Journal International
Detection of 36 GHz class I methanol maser emission towards NGC 253; The Astrophysical Journal Letters
Detection of a methanol megamaser in a major-merger galaxy; Astrophysical Journal Letters
Detection of compact radio emission from Circinus X-1 with the first Southern hemisphere e-VLBI experiment; Monthly Notices of the Royal Astronomical Society: Letters
Detection of new sources of methanol emission at 107 and 108 GHz with the Mopra telescope; Monthly Notices of the Royal Astronomical Society
Detection of new sources of methanol emission at 95 GHz with the Mopra telescope; Monthly Notices of the Royal Astronomical Society
Discovery of a Subparsec Radio Counterjet in the Nucleus of Centaurus A; The Astrophysical Journal
Discovery of four water masers in the small magellanic cloud; Royal Astronomical Society. Monthly Notices
Discovery of new 19.9-GHz methanol masers in star-forming regions; Monthly Notices of the Royal Astronomical Society
Discovery of the new class I methanol maser transition at 23.4 GHz; Monthly Notices of the Royal Astronomical Society
Discovery of two new class II methanol maser transitions in G 345.01+1.79; Astrophysical Journal Letters
Erratum: A search for 4750- and 4765-MHz OH masers in southern star-forming regions; Monthly Notices of the Royal Astronomical Society
Evolution of H II regions in hierarchically structured molecular clouds; Monthly Notices of the Royal Astronomical Society
Evolution of the Parsec-Scale Structure of PKS 1934-638 Revisited: First Science with the ASKAP and New Zealand Telescopes; Astronomical Journal
Excited-state hydroxyl maser catalogue from the methanol multibeam survey - 1. Positions and variability; Royal Astronomical Society. Monthly Notices
Expanded very large array continuum observations toward hot molecular core candidates; The Astrophysical Journal Letters
Extended emission associated with Young HII regions; Monthly Notices of the Royal Astronomical Society
Extremely Rapid Variations of Water Maser Emission from the Circinus Galaxy; The Astrophysical Journal
First cosmological constraints on the proton-to-electron massc ratio from observations of rotational transitions of methanol; Astrophysical Journal Letters
First parallax measurements toward a 6.7 GHz methanol maser with the Australian Long Baseline Array—distance to G 339.884-1.259; The Astrophysical Journal
First scientific VLBI observations using New Zealand 30 meter radio telescope WARK30M; Publications of the Astronomical Society of The Pacific
First-epoch observations of a VLBI proper-motion experiment using 6.7 & 12.2 GHz methanol masers; 4th Asia-Pacific Telescope Workshop
G 10.472+0.027: An extreme water maser outflow associated with a massive protostellar cluster; Astrophysical Journal Letters
Galactic Methanol Masers at 12 GHz; Monthly Notices of the Royal Astronomical Society
Galactic Methanol Masers at 6.6 GHz; Monthly Notices of the Royal Astronomical Society
GASKAP-The Galactic ASKAP Survey; Publications of the Astronomical Society of Australia
GRO J1655-40, The Movie; 4th Asia-Pacific Telescope Workshop
High-mass Star Formation in the Near and Far 3 kpc Arms; The Astrophysical Journal Letters
High-resolution observations of 6.7-GHz methanol masers with the Long Baseline Array; Monthly Notices of the Royal Astronomical Society
High-velocity feature of the class I methanol maser in G309.38−0.13; Monthly Notices of the Royal Astronomical Society
Improved implementation of the fk and Capon methods for array analysis of seismic noise; Geophysical Journal International
Magnetic field limits and spectral variability in the Circinus galaxy H2O megamasers; Royal Astronomical Society. Monthly Notices
Major structures of the inner Galaxy delineated by 6.7-GHz methanol masers; The Astrophysical Journal: An International Review of Astronomy and Astronomical Physics
MALT-45: a 7 mm survey of the southern Galaxy – I. Techniques and spectral line data; Monthly Notices of the Royal Astronomical Society
MALT90: The millimetre astronomy legacy team 90 GHz survey; Publications of the Astronomical Society of Australia
Maser Action in Methanol Transitions; Astrophysics and Space Science
Maser astrometry with VLBI and the SKA; Advancing Astrophysics with the Square Kilometre Array
Masers and Outflows in the W3(OH)/W3(H2O) Region; Astronomical and Astrophysical Transactions
Masers as evolutionary tracers of high-mass star formation; Symposium S287: Cosmic Masers - from OH to H0
Masers associated with high-mass star formation regions in the Large Magellanic Cloud; Monthly Notices of the Royal Astronomical Society
Measuring the Properties of the Gravitational Lens PKS 1830-211; IAU Colloquium 164: Radio Emission from Galactic and Extragalactic Compact Sources
Methanol absorption in PKS B1830−211 at milliarcsecond scales; Monthly Notices of the Royal Astronomical Society
Methanol maser associated outflows: detection statistics and properties; Monthly Notices of the Royal Astronomical Society
Methanol masers and their environment at high resolution; Monthly Notices of the Royal Astronomical Society
Methanol Masers as Tracers of Circumstellar Disks; The Astrophysical Journal
Methanol Masers-Are They in Circumstellar Disks?; IAU Colloquium 164: Radio Emission from Galactic and Extragalactic Compact Sources
Methanol Masers: Reliable Tracers of the Early Stages of High-Mass Star Formation; The Astrophysical Journal
Milliarcsecond-accurate Astrometry of 34 Southerm Hemisphere Radio Sources; The Astronomical Journal
Molecular line mapping of the giant molecular cloud associated with RCW 106-I.13CO; Monthly Notices of the Royal Astronomical Society
Molecular Radio Emission from the G34.26 + 0.15/33.24 + 0.13 Complex; Astronomical and Astrophysical Transactions
Monitoring the Jet in Centaurus A at 0.1 Parsec Resolution; 175th Symposium of the International Astronomical Union
Multibeam maser survey of methanol and excited OH in the Magellanic Clouds: new detections and maser abundance estimates; Monthly Notices of the Royal Astronomical Society
Multitransition study and new detections of class II methanol masers; Monthly Notices of the Royal Astronomical Society
New 9.9-GHz methanol masers; Monthly Notices of the Royal Astronomical Society
New class I methanol masers; International Astronomical Union Symposium S287
New Class II Methanol Masers in W3(OH); The Astrophysical Journal
Newly identified extended green objects (EGOs) from the Spitzer GLIMPSE II survey. I. catalog; Astrophysical Journal, Supplement Series
Newly identified extended green objects (EGOs) from the Spitzer GLIMPSE II survey. II. molecular cloud environments; Astrophysical Journal, Supplement Series
OH masers in the Milky Way and Local Group galaxies in the SKA era; Advancing Astrophysics with the Square Kilometre Array
Overview of Differential VLBI Observations of Lunar Orbiters in SELENE (Kaguya) for Precise Orbit Determination and Lunar Gravity Field Study; Space Science Reviews
Parallaxes of 6.7-GHz methanol masers towards the G 305.2 high-mass star formation region; Monthly Notices of the Royal Astronomical Society
Pks 0405-385
PKS 1830-211: A Possible Compound Gravitational Lens; The Astrophysical Journal
Polarisation of Class II Methanol Masers; Publications of the Astronomical Society of Australia
Practical Limitations on Astrophysical Observations of Methanol to Investigate Variations in the Proton-to-Electron Mass Ratio; Physical Review Letters
Probing Microarcsecond Structure in AGN using Continuous Flux Density Monitoring; Approaching Micro-Arcsecond Resolution with VSOP-2: Astrophysics and Technologies
Probing the microarcsecond structure of the Circinus megamasers through diffractive interstellar scintillation; Monthly Notices of the Royal Astronomical Society
Relativistic motion in a nearby bright X-ray source; Nature
Review of galactic and extragalactic searches for class I methanol masers; Chinese Science Bulletin
Rotating and infalling motion around the high-mass young stellar object Cepheus A-HW2 observed with the methanol maser at 6.7 GHz; Astronomy and Astrophysics
Same-beam VLBI observations of SELENE for improving lunar gravity field model; Radio Science
Science with ASKAP The Australian square-kilometre-array pathfinder; Experimental Astronomy
Science with the Australian Square Kilometre Array Pathfinder; Publications of the Astronomical Society of Australia
Scintillation in the Circinus Galaxy H2O Megamasers; The Astronomical Journal
Scintillation is an indicator of astrometric stability; Monthly Notices of the Royal Astronomical Society
Search for class II methanol masers at 23.1 GHz; Monthly Notices of the Royal Astronomical Society
Searches for class I methanol masers in the Galaxy; 31st URSI General Assembly and Scientific Symposium
Simulated Space VLBI Experiment using the Tidbinbilla 11-m DSN Tracking Station and SURFSAT and Simulated Satellites; IAU Colloquium 164: Radio Emission from Galactic and Extragalactic Compact Sources
Southern class I methanol masers at 36 and 44 GHz; Monthly Notices of the Royal Astronomical Society
SPLASH: the Southern Parkes Large-Area Survey in Hydroxyl – first science from the pilot region; Monthly Notices of the Royal Astronomical Society
Star-formation masers in the Magellanic Clouds: A multibeam survey with new detections and maser abundance estimates; The Magellanic System: Stars, Gas and Galaxies
Statistical properties of 12.2 GHz methanol masers associated with a complete sample of 6.7 GHz methanol masers; The Astrophysical Journal
Sub-Parsec Scale Structure and Evolution of Centaurus A (NGC 5128); 4th Asia-Pacific Telescope Workshop
Subparsec-scale structure and evolution of Centaurus A (NGC5128); Proceedings of the National Academy of Sciences of the United States of America
Temporal evolution of the Vela pulsar's pulse profile; The Astrophysical Journal
Testing maser-based evolutionary schemes: a new search for 37.7-GHz methanol masers; Monthly Notices of the Royal Astronomical Society
The 6-GHz methanol multibeam maser catalogue - I. Galactic Centre region, longitudes 345° to 6°; Monthly Notices of the Royal Astronomical Society
The 6-GHz methanol multibeam maser catalogue - II. Galactic longitudes 6° to 20 °; Monthly Notices of the Royal Astronomical Society
The 6-GHz methanol multibeam maser catalogue - III. Galactic longitudes 330° to 345°; Monthly Notices of the Royal Astronomical Society
The 6-GHz methanol multibeam maser catalogue - IV. Galactic longitudes 186 degrees-330 degrees including the Orion-Monoceros region; Monthly Notices of the Royal Astronomical Society
The 6-GHz methanol multibeam maser catalogue - V. Galactic longitudes 20°-60°; Monthly Notices of the Royal Astronomical Society
The 6-GHz multibeam maser survey - I . Techniques; Monthly Notices of the Royal Astronomical Society
The 6.7- and 25-GHz methanol masers in OMC-1; Monthly Notices of the Royal Astronomical Society
The AuScope geodetic VLBI array; Journal of Geodesy
The environment of the strongest galactic methanol maser; The Astrophysical Journal Letters
The exploration of lunar gravity by VLBI observations of SELENE (Kaguya); Transactions of the Japan Society for Aeronautical and Space Sciences, Space Technology Japan
The first high-resolution observations of 19.9-ghz methanol masers; Monthly Notices of the Royal Astronomical Society
The frequency dependence and locations of short-period microseisms generated in the Southern Ocean and West Pacific; Journal of Geophysical Research: Solid Earth
The mid-infrared environments of 6.7 GHz methanol masers from the methanol multi-beam survey; Monthly Notices of the Royal Astronomical Society
The Parkes methanol multibeam survey; Triggered Star Formation in a Turbulent ISM
The Parsec-scale Structure and Evolution of the Nearby Fanaroff-Riley Type II Radio Galaxy Pictor A; The Astronomical Journal
The protostellar mass limit for 6.7 GHz methanol masers I. A low-mass YSO survey; Astronomy & Astrophysics
The relationship between class I and class II methanol masers; Monthly Notices of the Royal Astronomical Society
The Southern Hemisphere Contribution to the VSOP Mission; Advances in Space Research
The spectral energy distribution of PKS 2004-447: a compact steep-spectrum source and possible radio-loud narrow-line Seyfert 1 galaxy; Monthly Notices of the Royal Astronomical Society
The Subparsec-Scale Structure and Evolution of Centaurus A: The Nearest Active Radio Galaxy; The Astronomical Journal
Tomography of Galactic star-forming regions and spiral arms with the Square Kilometre Array; Advancing Astrophysics with the Square Kilometre Array
Tracing major structures of the inner Galaxy with 6.7-GHz methanol masers; Assembling the Puzzle of the Milky Way
Unusual shock-excited OH maser emission in a young Planetary Nebula; The Astrophysical Journal
Variability of Methanol Masers; Publications of the Astronomical Society of Australia
VLBA Imaging of 12.2 GHz Methanol Masers; IAU Colloquium 164: Radio Emission from Galactic and Extragalactic Compact Sources
VLBI for better gravimetry in SELENE; Advances in Space Research
VLBI Imaging of GRO J1655-40 With the Sheve Array; Vistas in Astronomy
VLBI Observations of Southern Hemisphere ICRF Sources. I; The Astronomical Journal
VLBI observations of the 6.7 and 12.2 GHz methanol masers associated with NGC 6334F; 4th Asia-Pacific Telescope Workshop
VLBI observations of the type I b/c supernova 2009bb; The Astrophysical Journal
Water maser follow-up of the Methanol Multi-Beam Survey; Symposium S287: Cosmic Masers - from OH to H0
Water masers accompanying OH and methanol masers in star formation regions; Monthly Notices of the Royal Astronomical Society
Water masers within the G 333.2-0.6 giant molecular cloud; Astrophysical Masers and Their Environments
Weak and compact radio emission in early high-mass star-forming regions. I. VLA observations; The Astrophysical Journal Supplement Series
Weak and compact radio emission in early massive star formation regions: an ionized jet toward G11.11–0.12P1; The Astrophysical Journal

Research Projects

2008 R2 - East Asia VLBI Meeting, Seoul, Korea; University of Tasmania (UTAS)
A 10 Gbit/s Fibre Optic Link to the Mt Pleasant and Mt Canopus Observatories; Australian Research Council (ARC)
Broadband receivers for AuScope geodetic and astronomical applications; Australian Research Council (ARC)
Geophysical, Galactic, and Extra-galactic Science with the AuScope and ASKP Arrays; Australian Research Council (ARC)
Great Barriers in High-mass Star Formation; University of Tasmania (UTAS)
Investigations of the Structure and Dynamics of AGN on Sub-parsec Scales; University of Tasmania (UTAS)
Masers in Star-Forming Regions; Australian Research Council (ARC)
Masers: High Resolution Probes of Star Formation; Australian Research Council (ARC)
Measuring Circular Polarization In Methanol Masers; University of Tasmania (UTAS)
Mopra Radio Telescope ; Australian Research Council (ARC)
Multiline Class II Methanol Maser Observations; Department of Industry, Tourism & Resources (DITR)
Pulsar Proper Motions with the Next Generation of VLB1 recorders; University of Tasmania (UTAS)
Radio Interferometer Studies of Compact Astronomical Sources; Australian Research Council (ARC)
Real-time Very Long Baseline Interferometry; Australian Research Council (ARC)
Rising Stars; University of Tasmania (UTAS)
Supplementary Funding; University of Tasmania (UTAS)
The Earliest Stages of Star Formation; Australian Research Council (ARC)
The scale and structure of the Milky Way; Universities Australia / Deutscher Akademischer Austauschdienst (German Academic Exchange Service) (UADAAD)
The Study of Cosmic Masers.; Department of Industry, Tourism & Resources (DITR)
Undertake Long Baseline Array (LBA) Observing Services at the Hobart and Ceduna Radio Telescopes; CSIRO-Commonwealth Scientific & Industrial Research Organisation (CSIRO)
Long Baseline Array (LBA) Observation at the Hobart and Ceduna Radio Telescopes
The Scale and Structure of the Milky Way

Research Candidate Supervision

Active Galactic Nuclei Dynamics through studies of water megamasers
Bright pulse and consecutive bright pulse activity pre and post glitch on the Vela Pulsar
Consecutive Bright Pulses in the Vela Pulsar
Improved geodetic modelling through very long baseline interferometry and the study of interstellar scintillation of active Galactic Nuclei
Interstellar Masers as Evolutionary Tracers of High-mass Star Formation
Investigating the Earliest Stages of Massive Star Formation
Long-Term Remote Single-Dish Observations of Blazar Radio Variability
MALT-45- A 7mm Survey of the Southern Galaxy
Measuring Trigonometric Parallaxes to High-mass Star Formation Regions
Observational Probes of Helium Ignition in Low-Mass Stars
Radio Astronomy
Radioastronomy project, study of pulsars
RR Lyrae Stars and the Blazhko Effect
Scintillation in Circinus
The Development of Array and Single Station Methods for the Analysis of On-Land Seismic Signals from Deep Ocean Storms and Coastal Sources
The Southern Milky Way
Triggering and feedback from Active Galactic Nuclei across cosmic time
Trigonometric Parallax of Southern Star Formation Regions