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Schedule: 11:30-11:45am: Erin Holdorf Title: Searching for Giant Planets in Wide Orbits Within 30 pc Abstract: This speech will describe how planetary orbits were simulated for FGK stars to determine the number of expected detections of exoplanets in wide orbits and was then compared to the number of stars that have excess proper motion in Gaia EDR3. ----------- 11:45-12:00am: Jennifer Jang Title: Studying the impact of weather on the DREAMS survey Abstract: The Dynamic REd All-Sky Monitoring Survey (DREAMS) is the Infrared time-domain telescope to be examining the Southern hemisphere for the first time, built by ANU astronomers. In this project, we have studied the weather impact of the DREAMS telescope and saw if there exists a way to optimize the survey. Examining behaviors of cadence plots, through the prioritization method alternation, we have concluded that there is indeed a possibility. And furthermore, if the cadence plot behaviors are studied and well understood, the DREAMS surveys can be more optimized from where it is now. ----------- 12:00-12:15pm: Isaac Kanowski Title: Spectroscopic Identification of Strong Gravitationally Lensed Images Abstract: This talk will describe the process of locating high redshift, strong gravitationally lensed images in MAGPI data. To be able to identify these galaxy-like emission sources within the data cubes, the foreground galaxies which acts as lenses must first be modelled and removed. The method used for this removal and identification of sources will be discussed, as will the galaxies that have been detected as a result. ----------- 12:15-12:30pm: Hannah Loiterton Title: Quantifying properties of planet-host stars using a catalogue of stellar parameters from SkyMapper and Gaia DR2. Abstract: The properties of exoplanets and their correlations with host stars are known to be critical in gaining more informed insights on the process of planet formation. In this study, I have cross-matched stellar parameters derived from the SkyMapper survey against the NASA exoplanet archive, with the goal of exploring how exoplanet frequency and properties vary across stars with different stellar parameters. Some preliminary results are presented. ----------- 12:30-12:45pm: Bailey Martin Title: Influences on the Line-by-Line Elemental Abundance Measurements of the GALAH Survey Abstract: To unravel the mysteries of our Milky Way down to the small details, we need stellar measurements, such as elemental abundances, with outstanding accuracy and precision. The measurement of elemental abundances from spectra is subject to a variety of parameters. Previously these influences have been analysed independently. We provide an analysis of these parameters in a combined fashion, to determine whether there are any inherent correlations between them. Our analysis covers the correlations of microturbulence and Barium abundance as well as the influence of technical parameters like spectral resolution, spectrum normalisation and the mapping of CCD pixels to wavelengths. ----------- 12:45-13:00pm: Holly Robinson Title: ISM Temperature and Density of a Single Star HII Region Abstract: Using data from the KOALA integral field unit on the Anglo-Australian Telescope, we calculate the ISM temperature and density of a single star HII region, N81, located in the Small Magellanic Cloud. We utilize PyNeb to perform these measurements for an individually resolved HII region. We then compare the expected flux from strong emission lines such as hydrogen alpha to measure the radial temperature and density structure within an HII region. |
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