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Low-z Galaxy Scaling Relations Or, “Here are Some of my Favourite Log-Log Plots” Chris Clark 17/8/2020 ISM✻@ST Group Meeting Talk

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Low-z Galaxy Scaling Relations Or, “Here are Some of my Favourite Log-Log Plots” Chris Clark 17/8/2020 ISM✻@ST Group Meeting Talk

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Chris Clark Clark+ (2015) Scaling Relations‽

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Chris Clark Constant Vigilance Kennicutt (1989, 1998) ~ Molecular Gas Mass ~ Star Formation Rate The Kennicutt-Schmidt Relation

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Chris Clark Constant Vigilance Kennicutt (1998), Smith (priv. comm.) Cigar Yellowstone Park Forest Fire Venus Jeep Cherokee sitting in closed garage for 1 hour Observable Universe

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Chris Clark Constant Vigilance Kennicutt (1998) ~ Star Formation Rate ~ Molecular Gas Mass The Kennicutt-Schmidt Relation

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Chris Clark The Tully-Fisher Relation Tully & Fisher (1977)

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Chris Clark The Baryonic Tully-Fisher Relation Freeman (1999); Walker (1999); McGaugh (2000,2020); Lelli+ (2015); Ponomareva+ (2018) T-F relation for just stellar mass T-F relation for baryonic mass (stars + HI)

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Chris Clark Ultra-Diffuse Galaxies Break the BTF? Van Dokkum+ (2018); Mancera-Piña+ (2019)

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Chris Clark Super Spirals Break the BTF Relation? Ogle+ (2019)

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Chris Clark Super Spirals Break Every Relation? Fall (1983); Ogle+ (2019) j∗ = 2vmax Roptical (specific stellar angular momentum) The Fall Relation The Star Forming Main Sequence

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Chris Clark Cold Gas and the Danger Zone Saintonge+ (2011,2016,2017) MHI / M✻ H2 Depletion Time MH2 / M✻ GASS: GALEX Arecibo SDSS Survey HI for 1000 SDSS+GALEX galaxies with M✻ >1010 & 0.025109 for 530 galaxies total

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Chris Clark Cold Gas and the Danger Zone Saintonge+ (2016,2017) Constant SSFR

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Chris Clark Cold Gas and the Danger Zone Saintonge+ (2011,2016,2017); Catinella (2015) MHI / M✻ SSFR = SFR / M✻ MH2 / M✻ SSFR = 0.1 Gyr-1

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Chris Clark Cold Gas and the Danger Zone Saintonge+ (2011,2016,2017); Catinella (2015) SFR / M✻ MH2 / M✻ SSFR = 0.1 Gyr-1 The Kennicutt- Schmidt Relation! MH2 SFR

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Chris Clark Cold Gas and the Danger Zone Saintonge+ (2011,2016,2017); Catinella (2015) MHI / M✻ SSFR = SFR / M✻ MH2 / M✻ SSFR = 0.1 Gyr-1

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Chris Clark Cold Gas and the Danger Zone Saintonge+ (2011,2016,2017); Catinella (2015) H2 Depletion Time MH2 / MHI

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Chris Clark Cold Gas and the Danger Zone Saintonge+ (2011,2016,2017); Catinella (2015) H2 Depletion Time MH2 / MHI

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Chris Clark Cold Gas and the Danger Zone Saintonge+ (2011,2016,2017); Catinella+ (2015) H2 Depletion Time MH2 / MHI

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Chris Clark Big Differences Between Galaxies Gallagher+ (2018); Sun+ (2018) PHANGS

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Chris Clark Dust Evolution with Metallicity Rémy-Ruyer+ (2014); Galliano+ (2018)

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Chris Clark Dust Evolution with Metallicity Clark+ (2015); De Vis+ (2017) < Gas-Dominated Star-Dominated >

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Chris Clark ISM Scaling in Different Environments Cortese+ (2011); Boselli+ (2013); Davies+ (2019); Old+ (2020) But… (Star-Formation Efficiency)

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Chris Clark Conclusions Big things are big. Generally. (The devil is in the detail.)

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Chris Clark MH2 /MHI versus Dust-to-Gas Casasola+ (2019)