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Jamie Holder (University of Delaware)28/11/2019, 09:20
With broader energy coverage, better angular and energy resolution, and an order of magnitude improvement in sensitivity with respect to existing instruments, the Cherenkov Telescope Array (CTA) will revolutionize the study of the Universe at the highest energies. Here we summarize some of the scientific goals of the Observatory, with a focus on the core programme of Key Science Projects...
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Roberta Zanin (CTAO)28/11/2019, 09:40
The Cherenkov Telescope Array (CTA) is the next generation gamma-ray observatory. It will be open to the entire astronomical and particle physics community as a resource to provide unique observations of the unexplored Universe at very high energies. With its greatly improved sensitivity when compared to the currently running facilities as well as significantly enhanced angular and spectral...
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Ulisses Barres de Almeida (Centro Brasileiro de Pesquisas Físicas)28/11/2019, 10:00
The purpose of this talk is to outline the needs for CTA science, and the collaboration opportunities in various research topics provided by CTA, in a multi-instrumental perspective. After providing a general panorama of the MWL synergies for CTA science, we will focus on some potential, specific linkages to Australian Astronomy, regarding, in particular, its large infrastructure of...
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Daniela Hadasch (ICRR, University of Tokyo)28/11/2019, 10:20
Transient sources are characterized by their unpredictable emission on timescales spanning milliseconds to years. Many transients are known to be emitters of high-energy gamma rays and are also potential sources of non-photonic signals that include cosmic rays, neutrinos and/or gravitational waves. The next generation observatory for very high energy gamma rays will be the Cherenkov Telescope...
Go to contribution page -
Fabian Schüssler (IRFU)28/11/2019, 11:00
The Cherenkov Telescope Array (CTA) is the next generation high-energy gamma-ray observatory. It will improve the sensitivity of current instruments up to an order of magnitude while providing energy coverage for photons from 20 GeV to at least 300 TeV to reach high redshifts and extreme accelerators and will give access to the shortest timescale phenomena. CTA is thus a uniquely powerful...
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Dr Chris Flynn (Swinburne University of Technology)28/11/2019, 11:20
Likely topics: UTMOST FRB localisation update Localised FRBs with ASKAP -- probing the IGM ASKAP repeaters CHIME finds repeating FRBs
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Dr Clancy James (ICRAR - Curtin University)28/11/2019, 11:40
The Australian Square Kilometre Array Pathfinder is located in the Murchison Radio-astronomy Observatory (MRO) in outback Western Australia. It's wide-field and survey capabilities make it an excellent instrument for detecting transients, and performing follow-up observations. This talk presents highlights from ASKAP's fast radio burst (FRB) program, CRAFT, and reviews ASKAP's radio,...
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Dr James Miller-Jones (ICRAR - Curtin University)28/11/2019, 12:00
X-ray binaries are accreting stellar-mass black hole and neutron star systems, which are known to launch relativistic jets. Transient X-ray binaries undergo sporadic outbursts in which the accretion rate and jet power both rise by orders of magnitude, occasionally reaching or exceeding the Eddington accretion rate. These spectacular outbursts make good potential targets for CTA observations....
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Dr Kendall Ackley (Monash University)28/11/2019, 13:20
The Gravitational-Wave Optical Transient Observer (GOTO) is a wide-field robotic optical instrument currently in operation on La Palma, Canary Islands. The scalable design consists of 8 individual 40 cm diameter astrographs on a single mount to instantaneously image a large 40 square degree field-of-view. The primary aim of GOTO is to detect and study electromagnetic counterparts to...
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Susumu Inoue (Institute for Cosmic Ray Research, University of Tokyo)28/11/2019, 13:40
Gamma-ray bursts (GRBs) are the most luminous sources of electromagnetic radiation in the Universe, of which many fundamental aspects remain poorly understood. TeV gamma rays from GRBs are expected to provide crucial new information on the physical mechanisms of energy dissipation, particle acceleration and radiation in these enigmatic objects. After decades of searches, they were finally...
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Dr Gemma Anderson (ICRAR - Curtin University)28/11/2019, 14:00
Only recently have radio telescopes been capable of automatically responding to transient alerts and multi-messenger events through the use of a rapid-response observing system. Such systems enable telescopes to automatically repoint and begin observing an event within seconds to minutes of its discovery, responding to transient alerts broadcast by dedicated telescopes or multi-messenger...
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Dr Bruce Gendre (University of Western Australia)28/11/2019, 14:20
The Zadko Telescope is located on the West coast of Australia, in a unique position at this given latitude and longitude. It is a one meter fully robotic telescope, the only one of this class in Western Australia. Since 2009, it obtained numerous results in the field of high energy (observations of GRBs, GW events and kilonovae). In this presentation, I will present the telescope and its...
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Dr Chris Phillips (CSIRO)28/11/2019, 14:40
The gamma-ray sky is dominated by radio sources. Radio observations with milliarcsecond resolution are will be essential to understand new sources detected with the CTA. Studying Active Galactic Nuclei is one of CTA's Key Science Projects. However, the CTA does not have the angular resolution to study the source of relativistic jets - the resolution of VLBI is required to understand the...
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Daniel Mazin (MPI for Physics, Munich & ICRR, University of Tokyo)28/11/2019, 15:20
CTA is the next generation gamma-ray observatory which will conduct observations from both hemispheres in the energy range from 20 GeV to more than 300 TeV with an unprecedented sensitivity and angular resolution. Several Key Science Projects have been prepared by the CTA consortium to shed light on long standing questions of production mechanisms of gamma rays in extragalactic sources and...
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Markus Boettcher (North-West University, Potchefstroom)28/11/2019, 15:40
This talk summarizes recent progress in multi-wavelength and multi-messenger studies of AGN, in particular blazars. Prospects of blazar studies with CTA will be summarized and synergies with Australian and South African facilities (in particular, SKA precursors) will be discussed.
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Prof. Gary Hill (The University of Adelaide)28/11/2019, 16:00
The IceCube neutrino alert program led to the observations that suggest that the blazar TXS 0506+056 is a cosmic accelerator, producing high energy cosmic rays, followed by neutrinos and gamma rays from subsequent interactions as these escape the jets. In this talk I will review the motivation for, construction, and science of IceCube, where, the long-sought dream of high-energy neutrino...
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Dr Daniel Cotton (Western Sydney University / University of Southern Queensland)28/11/2019, 16:20
A new polarimeter is being developed at UNSW and WSU that will have utility for the CTA project. In this talk I will describe the recent development of high precision polarimetry in Australia and the scientific achievements it has enabled, with a focus on understanding the evolution of high mass stars. I will then outline the development of the new polarimeter, how its design differs and how...
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Dr Elina Lindfors (Finnish Centre for Astronomy with ESO / University of Turku)28/11/2019, 16:40
The location of the blazar zone has been a topic of decades long debate. The only wavelength at which we can spatially resolve the jet is radio, where the jet becomes optically thin several parsecs away from the black hole. It has been generally argued that the main blazar zone is located much closer to the black hole due to the fast variability we see, but also due to lack of seed photons...
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Gavin Rowell (University of Adelaide)29/11/2019, 09:00
Surveys of the Galactic Plane in TeV gamma rays reveal over 70 TeV sources, most of which are unidentified. The identified sources are associated with supernova remnants, pulsar wind nebulae, compact-stellar binary systems, and diffuse gas. CTA's greatly improved sensitivity is expected to uncover many more sources and the diffuse TeV emission localised around particle accelerators. It may...
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Rebecca Blackwell (The University of Adelaide)29/11/2019, 09:20
Using the Mopra Southern Galactic Plane Carbon Monoxide Survey dataset, comparisons between high resolution molecular gas and current HESS observations of Very High Energy (VHE) gamma-ray sources are presented. In particular, VHE gamma-ray sources in and near the Central Molecular Zone are focused on as case studies. Similar comparisons will be able to be made in the future when CTA provides...
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Troy Porter (Stanford University)29/11/2019, 09:40
The current understanding of the diffuse gamma-ray emission, which is thought to be mainly produced by cosmic ray (CR) particles interacting with the interstellar gas and radiation fields, has a significant basis on advances made with the Fermi Large Area Telescope (Fermi-LAT) over the past decade of its operation. The Fermi-LAT observations are most sensitive at GeV gamma-ray energies, and...
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Prof. Ray Norris (WSU / CSIRO)29/11/2019, 10:00
The Evolutionary Map of the Universe (EMU), the all-sky radio continuum survey using the Australian Square Kilometre Array Pathfinder (ASKAP), has now completed its "Pilot Survey" ASKAP and is generating science results from the ~200,000 radio sources in that field. We are now planning the full survey to start next year. I will discuss the latest results, and plans for the full EMU survey, and...
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Sabrina Einecke (The University of Adelaide, Australia)29/11/2019, 10:20
The scientific branches Big Data and Data Mining are increasingly becoming an integral part in astronomy. Numerous experiments in various energy regimes provide immense amounts of data that need to be accurately combined, analysed and interpreted. Forthcoming experiments of a new era, such as CTA or SKA, will produce mind-blowing data rates of up to multiple Petabytes per second, demanding...
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Dr Natasha Hurley-Walker (ICRAR - Curtin University)29/11/2019, 11:00
Recent years have seen a resurgence in radio astronomy at sub-GHz frequencies, with the construction and operation of telescopes such as the LOw-Frequency ARray (LOFAR) and the Murchison Widefield Array (MWA), as well as the upgrade of existing facilities such as the Giant Metrewave Radio Telescope (GMRT). Radio astronomy at low frequencies offers a valuable window into objects and processes...
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Dr Katie Jameson (CSIRO)29/11/2019, 11:20
The Australian Square Kilometre Array Pathfinder (ASKAP) is a new radio array that allows us to map atomic hydrogen (HI) and hydroxide (OH) at unprecedented resolution and sensitivity. I will present an overview of the Galactic ASKAP Survey (GASKAP), which aims to map HI and OH throughout the Galactic Plane and Magellanic System. I will highlight how the HI and OH data from GASKAP will help...
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Miroslav Filipovic (Western Sydney University)29/11/2019, 11:40
We are currently carrying out observational studies of SNRs and superbubbles using today’s gamma-ray, X-ray and radio telescopes and will continue our efforts with upcoming telescopes like eROSITA, Cherenkov Telescope Array, HESS and the SKA precursors, including synergistic programmes such as ASKAP-eROSITA. SKA pathfinders' observations in radio at low frequencies with high sensitivity will...
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Ivo Seitenzahl (UNSW-Canberra)29/11/2019, 12:00
I report on the discovery of optical emission from the non-radiative shocked ejecta of three young Type Ia supernova remnants (SNRs): SNR 0519-69.0, SNR 0509-67.5, and N103B. Deep integral field spectroscopic observations reveal broad and spatially resolved [Fe XIV] 5303A emission. The width of the broad line reveals, for the first time, the reverse shock speeds. For two of the remnants we can...
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Silvia Celli (GSSI)29/11/2019, 13:20
Abstract The escape process of particles accelerated at supernova remnant (SNR) shocks is one of the poorly understood aspects of the shock acceleration theory. In this talk I will describe a phenomenological approach to study the particle escape and its impact on the gamma-ray spectrum resulting from hadronic collisions both inside and outside of a middle-aged SNR. Under the assumption that...
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Alison Mitchell (University of Zürich)29/11/2019, 13:40
Pulsar Wind Nebulae (PWNe), regions dynamically dominated by highly energetic particles accelerated in the vicinity of pulsars, are the most populous Galactic source class identified at TeV energies in the H.E.S.S. Galactic Plane Survey. Recently, the first views of the Galactic plane at energies > 100 TeV from HAWC have unveiled a source population exclusively associated with energetic...
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Dr Arache Djannati-Atai (APC-CNRS)29/11/2019, 14:00
I'll give an overview of current research and results on gamma-ray pulsars from ground and discuss the prospects with CTA, including some considerations on multi-wavelength coordination.
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Roland Crocker (Australian National University)29/11/2019, 14:20
The inner few hundred parsecs of the Galaxy host its resident supermassive black hole and a surrounding region of intense star formation. In addition, this region of the Milky Way is where its dark matter density is expected to peak. Moreover, a number of mysterious signals emanate or peak in this part of the sky: the
Go to contribution pageGC Excess' gamma-ray signal, theFermi Bubbles', and the positron... -
Dr Chris Gordon (University of Canterbury)29/11/2019, 14:40
The High-Energy Stereoscopic System (HESS) has detected diffuse TeV emission correlated with the distribution of molecular gas along the Ridge at the Galactic Centre. Diffuse, non-thermal emission is also seen by the Fermi large area telescope (Fermi-LAT) in the GeV range and by radio telescopes in the GHz range. Additionally, there is a distinct, nearly spherically symmetric excess of gamma...
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Jamie Holder (University of Delaware)
With broader energy coverage, better angular and energy resolution, and an order of magnitude improvement in sensitivity with respect to existing instruments, the Cherenkov Telescope Array (CTA) will revolutionize the study of the Universe at the highest energies. Here we summarize some of the scientific goals of the Observatory, with a focus on the core programme of Key Science Projects...
Go to contribution page -
Ulisses Barres de Almeida (Centro Brasileiro de Pesquisas Físicas)
The purpose of this talk is to outline the needs for CTA science, and the collaboration opportunities in various research topics provided by CTA, in a multi-instrumental perspective. After providing a general panorama of the MWL synergies for CTA science, we will focus on some potential, specific linkages to Australian Astronomy, regarding, in particular, its large infrastructure of...
Go to contribution page -
Daniel Mazin (MPI for Physics, Munich & ICRR, University of Tokyo)
CTA is the next generation gamma-ray observatory which will conduct observations from both hemispheres in the energy range from 20 GeV to more than 300 TeV with an unprecedented sensitivity and angular resolution. Several Key Science Projects have been prepared by the CTA consortium to shed light on long standing questions of production mechanisms of gamma rays in extragalactic sources and...
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Gavin Rowell (University of Adelaide)
Topics:
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- CTA & transients/variable source studies
- What can MWL/MM inputs can Australia provide? -
Gavin Rowell (University of Adelaide)
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Fabian Schüssler (IRFU)
The Cherenkov Telescope Array (CTA) is the next generation high-energy gamma-ray observatory. It will improve the sensitivity of current instruments up to an order of magnitude while providing energy coverage for photons from 20 GeV to at least 300 TeV to reach high redshifts and extreme accelerators and will give access to the shortest timescale phenomena. CTA is thus a uniquely powerful...
Go to contribution page -
Susumu Inoue (Institute for Cosmic Ray Research, University of Tokyo)
Gamma-ray bursts (GRBs) are the most luminous sources of electromagnetic radiation in the Universe, of which many fundamental aspects remain poorly understood. TeV gamma rays from GRBs are expected to provide crucial new information on the physical mechanisms of energy dissipation, particle acceleration and radiation in these enigmatic objects. After decades of searches, they were finally...
Go to contribution page -
Dr Roberta Zanin (CTAO)
The Cherenkov Telescope Array (CTA) is the next generation gamma-ray observatory. It will be open to the entire astronomical and particle physics community as a resource to provide unique observations of the unexplored Universe at very high energies. With its greatly improved sensitivity when compared to the currently running facilities as well as significantly enhanced angular and spectral...
Go to contribution page -
Markus Boettcher (North-West University, Potchefstroom)
This talk summarizes recent progress in multi-wavelength and multi-messenger studies of AGN, in particular blazars. Prospects of blazar studies with CTA will be summarized and synergies with Australian and South African facilities (in particular, SKA precursors) will be discussed.
Go to contribution page -
Daniela Hadasch (ICRR, University of Tokyo)
Transient sources are characterized by their unpredictable emission on timescales spanning milliseconds to years. Many transients are known to be emitters of high-energy gamma rays and are also potential sources of non-photonic signals that include cosmic rays, neutrinos and/or gravitational waves. The next generation observatory for very high energy gamma rays will be the Cherenkov Telescope...
Go to contribution page -
Gavin Rowell (University of Adelaide)
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