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 contact the AAO colloquium organiser at (colloquia@aao.gov.au). 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

Brad Tucker, speaking on "Results from ESSENCE and the Kepler Extra-Galactic Survey (KEGS)", to be held in the AAO Meeting Room (Room 7, 1st Floor, Building 2) at 11:00AM on Thursday 30th October, 2014.
Abstract:
The Equation of State: SupErNovae trace Cosmic Expansion' (ESSENCE) survey was a 6-year NOAO program which discovered 228 Type Ia Supernovae (SN Ia) in the redshift range 0.2 3 effective radius of the host galaxy occur in low-extinction environments, subsequently producing a uniform sample of SN Ia which can be used to measure cosmological parameters with lower systematic errors. SN Ia at these distances have noticeable offsets in SN color and Hubble residual from the entire sample, suggesting an improper treatment of SN Ia color and dust, both of which have the potential to bias SN Ia distance measurements.

Kepler's unique technical capabilities are not only well suited for finding and studying exo-planets, but also supernovae. I will give an overview of the Kepler Extra-Galactic survey - a program using Kepler to search for supernovae, active galactic nuclei, and other transients in galaxies. To date we have found two type Ia supernovae and two core-collapse supernovae. The 30-minute cadence of Kepler has revealed subtle features in the light-curves of these supernova not detectable with any other survey. With a high-cadence, high precision survey, shock break-out in a large number of SN can be found, improving our understanding of supernova progenitors. We can also search in nearby galaxies for very fast and faint transients, filling in a previously unaccessible parameter space. Lastly, the precision data of any discovered type Ia supernova combined with ground based data can dramatically improve our use of type Ia for determining distances and measuring the properties of dark energy.

Whether you like stars, galaxies, or the Universe, this talk has something for you!

 

Upcoming Scheduled Colloquia

DateTimeLocationSpeakerTitle
Thursday 30th October, 201411:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)Brad Tucker (Australian National Observatory)Results from ESSENCE and the Kepler Extra-Galactic Survey (KEGS)
Thursday 6th November, 201411:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)D. John Hillier (University of Pittsburgh )Probing the Secrets of Ia Supernovae through their Spectra and Light Curves
Thursday 13th November, 201411:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)Jillian Bellovary (Vanderbilt)Scrutinizing the Relationship Between Galaxies and Supermassive Black Holes
Friday 14th November, 201411:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)Luca Cortese (Swinburne)TBA
Tuesday 18th November, 201411:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)Michael Childress (ANU)Progenitors of Type Ia Supernovae

Past Colloquia

DateTimeLocationSpeakerTitle
Tuesday 21st October, 201411:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)Peter Gillingham and Jeffrey Cooke (AAO and Swinburne)An Australian-led wide-field camera proposal for the Keck Observatory
Friday 17th October, 201411:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)David Sanders (IFA Hawaii)The Cosmic Evolution of Luminous and Ultraluminous Infrared Galaxies: New Results from the GOALS and Herschel-COSMOS Surveys
Thursday 9th October, 201411:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)Esteban Silva-Villa (AAO Visitor)Star clusters, field stars and spiral galaxies
Thursday 2nd October, 201411:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)Emily Wisnioski (MPE)The KMOS^3D Survey: design, first results, and the evolution of galaxy kinematics
Tuesday 30th September, 201402:00PMAAO Meeting Room (Room 7, 1st Floor, Building 2)Jacinta Delhaize (UWA)Pushing the redshift limit of neutral hydrogen gas observations with spectral stacking
Thursday 4th September, 201411:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)Cristina Romero-Canizales (Pontificia Universidad Catolica de Chile )The core-collapse supernova rate in luminous infrared galaxies: the case of Arp 299
Tuesday 2nd September, 201411:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)Aleksandra Hamanowicz, Jonathan St. Antoine, and Samantha Stever (AAO)Undergraduate Winter Student Talks
Tuesday 26th August, 201411:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)Rosemary Beeston and Connor Diamond (AAO )AAO Undergraduate Winter Students Talks
Wednesday 20th August, 201403:00PMAAO Meeting Room (Room 7, 1st Floor, Building 2)Jonay Isai Gonzalez Hernandez (Instituto de Astrofísica de Canarias (IAC, Canary Islands, Spain))Origin of compact objects and supernovae
Thursday 7th August, 201411:00AMAAO Meeting Room (Room 7, 1st Floor, Building 2)Matt Owers (AAO)TBA
Show all past colloquia