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GECKOS: Turning galaxy evolution on its side with deep observations of edge-on galaxies

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arxiv 2306.00059 v1 pith:ACI3DHQ3 submitted 2023-05-31 astro-ph.GA astro-ph.IM

J. van de Sande , A. Fraser-McKelvie , D. B. Fisher , M. Martig , M. R. Hayden , the GECKOS Survey collaboration This is my paper · ORCID
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keywords galaxiesgeckosedge-ondiskgalaxykinematicsassemblyevolution
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We present GECKOS (Generalising Edge-on galaxies and their Chemical bimodalities, Kinematics, and Outflows out to Solar environments), a new ESO VLT/MUSE large program. The main aim of GECKOS is to reveal the variation in key physical processes of disk formation by connecting Galactic Archaeology with integral field spectroscopic observations of nearby galaxies. Edge-on galaxies are ideal for this task: they allow us to disentangle the assembly history imprinted in thick disks and provide the greatest insights into outflows. The GECKOS sample of 35 nearby edge-on disk galaxies is designed to trace the assembly histories and properties of galaxies across a large range of star formation rates, bulge-to-total ratios, and boxy and non-boxy bulges. GECKOS will deliver spatially resolved measurements of stellar abundances, ages, and kinematics, as well as ionised gas metallicities, ionisation parameters, pressure, and inflow and outflow kinematics; all key parameters for building a complete chemodynamical picture of disk galaxies. With these data, we aim to extend Galactic analysis methods to the wider galaxy population, reaping the benefits of detailed Milky Way studies, while probing the diverse mechanisms of galaxy evolution.

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Cited by 2 Pith papers

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  1. The Edge-on Galaxies in the DESI survey (EGIDE): sample building and photometry

    astro-ph.GA 2026-06 unverdicted novelty 6.0 of 10

    The EGIDE project releases a tenfold larger catalogue of edge-on galaxies with griz photometry, stellar masses, redshifts and star formation rates, finding that red-sequence galaxies are thicker than blue-cloud ones a...

  2. An Integral Field Spectroscopy Study Of Thin And Thick Discs In IC 2531

    astro-ph.GA 2025-07 conditional novelty 4.0 of 10

    IC 2531's geometrically defined thick disc is, on average, older, more metal-poor and similarly alpha-enhanced relative to its thin disc, resembling the Milky Way's chemical discs.

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