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How do Stellar Surveys Like GALAH Improve Our Understanding of Planetary Systems?

Authors: Clark, Jake Thomas; Hinkel, Natalie; Wittenmyer, Rob; Horner, Jonti; Wright, Duncan; Carter, Brad; Unterborn, Cayman; +1 Authors

How do Stellar Surveys Like GALAH Improve Our Understanding of Planetary Systems?

Abstract

{"references": ["Adibekyan, Vardan, et al. \"The Chemical link between stars and their rocky planets.\" arXiv preprint arXiv:2102.12444 (2021).", "Brown, Anthony GA, et al. \"Gaia Early Data Release 3-Summary of the contents and survey properties.\" Astronomy & Astrophysics 649 (2021): A1.", "Brown, A. G. A., et al. \"Gaia Data Release 2-Summary of the contents and survey properties.\" Astronomy & astrophysics 616 (2018): A1.", "Buder, Sven, et al. \"The GALAH+ survey: Third data release.\" Monthly Notices of the Royal Astronomical Society 506.1 (2021): 150-201", "Buder, Sven, et al. \"The GALAH Survey: second data release.\" Monthly Notices of the Royal Astronomical Society 478.4 (2018): 4513-4552.", "Chen, Jingjing, and David Kipping. \"Probabilistic forecasting of the masses and radii of other worlds.\" The Astrophysical Journal 834.1 (2016): 17.", "Clark, Jake T., et al. \"The GALAH Survey: using galactic archaeology to refine our knowledge of TESS target stars.\" Monthly Notices of the Royal Astronomical Society 504.4 (2021): 4968-4989.", "Dai, Fei, et al. \"TKS X: Confirmation of TOI-1444b and a Comparative Analysis of the Ultra-short-period Planets with Hot Neptunes.\" arXiv preprint arXiv:2105.08844 (2021).", "Morton, Timothy D. \"isochrones: Stellar model grid package.\" Astrophysics Source Code Library (2015): ascl-1503.", "Plotnykov, Mykhaylo, and Diana Valencia. \"Chemical fingerprints of formation in rocky super-Earths' data.\" Monthly Notices of the Royal Astronomical Society 499.1 (2020): 932-947.", "Sharma, Sanjib, Michael R. Hayden, and Joss Bland-Hawthorn. \"Chemical Enrichment and Radial Migration in the Galactic Disk--the origin of the [$\\alpha/\\rm Fe] $ Double Sequence.\" arXiv preprint arXiv:2005.03646 (2020).", "Sharma, Sanjib, et al. \"The TESS\u2013HERMES survey data release 1: high-resolution spectroscopy of the TESS southern continuous viewing zone.\" Monthly Notices of the Royal Astronomical Society 473.2 (2018): 2004-2019.", "Skrutskie, M. F., et al. \"The two micron all sky survey (2MASS).\" The Astronomical Journal 131.2 (2006): 1163. Stassun, Keivan G., et al. \"The revised TESS input catalog and candidate target list.\" The Astronomical Journal 158.4 (2019): 138.", "Taylor, Mark B. \"TOPCAT & STIL: Starlink table/VOTable processing software.\" Astronomical data analysis software and systems XIV. Vol. 347. 2005.", "Wang, Haiyang S., et al. \"Enhanced constraints on the interior composition and structure of terrestrial exoplanets.\" Monthly Notices of the Royal Astronomical Society 482.2 (2019): 2222-2233.", "Wittenmyer, Robert A., et al. \"K2-HERMES II. Planet-candidate properties from K2 Campaigns 1-13.\" Monthly Notices of the Royal Astronomical Society 496.1 (2020): 851-863."]}

The time of large-scale astronomical surveys is now upon us. These huge spectral, astrometric and photometric surveys are providing us astronomers with the richest datasets to date, to better characterise the stars contained within the Milky Way like never before. With almost every star being orbited by at least one exoplanet across our galaxy, these large scale surveys can help better inform us in characterising confirmed and potential planet-hosting stars. We've been able to utilise GALAH's last two data releases (DR2 and DR3), along with GAIA DR2 and EDR3 to better characterise over 125 exoplanet hosts and 250 candidate hosting stars, as well as 45,000 stars currently being observed by TESS. This poster also shows how GALAH's chemical abundances can help inform exoplanetary scientists on what types of planets TESS will likely uncover, and some trends in planetary populations with different chemical abundances.

The website for the interactive poster can be found here: https://jake-clark.github.io/#TESS21

Keywords

stellar astrophysics, stellar abundances, galactic archaeology, exoplanets, Planetary astrophysics, galah survey, fundamental parameters

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This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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