AAO Colloquia

The AAO organises frequent colloquia at our North Ryde headquarters. These are usually held Thursday morning at 11:00 am, though other dates are occasionally scheduled. We welcome talks from visiting astronomers - if you are passing through Sydney and would like to tell us about your work, please fill out the AAO Visitor Form. The ATNF (Australia Telescope National Facility) also organises colloquia at their Epping offices. A schedule for these talks can be found on the ATNF Colloquia webpage. The AAO and ATNF occasionally organise Joint Colloquia when the speaker is likely to be of interest to both radio and optical communities. These talks will be found in both the list below, and the ATNF schedule. A list of past speakers can also be found below.

Next Scheduled AAO Colloquium

Samuel Nathan Richards & Barnaby Norris, speaking on "Cutting-edge imaging technologies at the AAT – photonic interferometry and adaptive optics", to be held in the AAO Meeting Room (Room 7, 1st Floor, Building 2) at 11:00AM on Thursday 12th May, 2016.
Abstract:
Recently several cutting edge imaging instrumentation technologies have been tested and deployed at the AAT, including photonic interferometry and adaptive optics. In this talk we will highlight these technologies and present the latest results. Diffraction-limited, high contrast imaging can be realized at a seeing-limited 4 m telescope using interferometry. We will present two photonic interferometers, which will recover diffraction limited performance by injecting separate regions of the AAT pupil into single-mode waveguides inscribed within a photonic chip, and measuring interference ‘fringes’ via evanescent coupling between waveguides. Pathfinders for both the Dragonfly instrument and a new nulling interferometer (wherein imaging contrast is improved by destructively interfering starlight) were tested, and will be presented. An adaptive injection system, used to inject seeing-limited starlight into single-mode fibers and waveguides will also be demonstrated. We will also present the successful closed-loop results of the Instrument Science team’s adaptive optics experiment on the AAT (Cassegrain focus) from Dec 2015, and the next steps for AO on the AAT. In addition to the AO experiment, the on-sky capabilities of distributed wavefront sensors, which make use of efficient polymer imaging bundles, will also be presented, and we will explore other applications of these bundles in the context of astronomical instrumentation.

 

Upcoming Scheduled Colloquia

DateTimeLocationSpeakerTitle
Thursday 12th May, 201611:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)Samuel Nathan Richards & Barnaby Norris (University of Sydney)Cutting-edge imaging technologies at the AAT – photonic interferometry and adaptive optics
Thursday 19th May, 201611:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)Jesse van de Sande (The University of Sydney)Revisiting galaxy classification with SAMI through high-order stellar kinematics
Wednesday 25th May, 201603:00PMAAO Meeting Room (Room 7, 1st Floor, Building 2)Samuel Nathan Richards (University of Sydney)Advancements in multi-object integral-field spectroscopy | PhD exit talk
Friday 27th May, 201611:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)Alan Duffy (Swinburne University)TBD
Thursday 9th June, 201611:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)Chris Power (ICRAR/UWA)TBA

Past Colloquia

DateTimeLocationSpeakerTitle
Thursday 28th April, 201611:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)Christopher Matzner (University of Toronto)Gas dynamics of star cluster formation
Thursday 21st April, 201611:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)Prof Anne Green and Dr Yeshe Fenner (Astronomy Australia Ltd (AAL))Astronomy Australia Ltd: Update on current activities and future plans
Monday 11th April, 201611:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)Martin Stringer (Instituto de Astrofisica de Canarias / University of Queensland)Seeking the signatures of cosmology in galaxy properties
Thursday 7th April, 201611:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)Fred Watson (Australian Astronomical Observatory (AAO))The Seventeenth Century’s LIGO - Optical Artisans and the first Reflecting Telescope
Thursday 31st March, 201611:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)Micheal Burton (University of New South Wales)Formation pumping of molecular hydrogen: the shocking story of H2
Thursday 24th March, 201611:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)Dr. Sarah Pearce (CSIRO Astronomy and Space Science)The Square Kilometre Array – moving towards construction
Wednesday 16th March, 201611:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)Chris Lidman (Australian Astronomical Observatory (AAO))OzDES reaches the half way mark
Thursday 10th March, 201611:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)Sarah Martell (University of New South Wales)New evidence on the role of globular clusters in the assembly of the Galactic halo
Wednesday 2nd March, 201611:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)Anna Frebel (Massachusetts Institute of Technology)A single prolific r-process event preserved in an ultra-faint dwarf galaxy
Tuesday 1st March, 201611:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)Dr. Paul Lasky (School of Physics and Astronomy, Monash University)The dawn of gravitational-wave astronomy
Show all past colloquia