26th Australian Institute of Physics Congress and the Australian and New Zealand Conference on Optics and Photonics

Session

AIP ASTRO 3

ASTRO

9 Dec 2026, 11:00

Belinda Hutchinson Building (The University of Sydney )

Conveners

AIP ASTRO 3

• Hayden Greer (University of Sydney)

82. Probing stellar interiors with asteroseismology

Tim Bedding (University of Sydney)

09/12/2026, 11:00

AIP | Astronomy (ASTRO)

Invited talk

Asteroseismology uses the natural oscillation modes of stars to study their interiors. The wonderfully precise measurements by NASA's Kepler and TESS missions are ideal data sources for the technique. These space telescopes have been monitoring the brightness of hundreds of thousands of stars, with the main goal of discovering extra-solar planets as they transit their parent stars. At the...

373. Doing more with less: Linking observations and theory of AGN feedback

Samuel Hansen

09/12/2026, 11:30

AIP | Astronomy (ASTRO)

Contributed Oral

Black hole jets have shaped our Universe. These relativistic jets (known as Active Galactic Nuclei [AGN]) heat and transport gas in their host galaxy and are a fundamental component of galaxy evolution. Despite their importance, understanding the energetics and environments of these extreme objects remains difficult. This is due, in part, to the requirement of overlapping, high resolution...

233. In Search of Circumplanetary Disk Candidates at Wide Orbits in the exoALMA Sample

Vanessa Welke (University of Melbourne)

09/12/2026, 11:45

AIP | Astronomy (ASTRO)

Invited talk

Circumplanetary disks (CPDs) are accretion disks surrounding forming planets and are thought to play an important role in planet and moon formation. However, their small spatial scales and faint emission make them difficult to detect, requiring deep, high-resolution observations.

The exoALMA survey (Teague et al. 2025) provides some of the deepest high-resolution observations of...

265. From OzDES to TiDES: host-dependent redshift recovery in supernova cosmology

Mr Alan Chan (Mount Stromlo Observatory, The Australian National University)

09/12/2026, 12:15

AIP | Astronomy (ASTRO)

Contributed Oral

Type Ia supernovae remain one of the key observational probes of dark energy, but their cosmological constraining power depends on constructing Hubble diagrams with well-understood observational biases. In future high-statistics time-domain surveys, including TiDES and Rubin/LSST-era supernova programmes, host-galaxy redshifts will often need to be obtained under finite spectroscopic...