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Low-z Scaling Relations Review - ISM✻@ST

Chris Clark
August 17, 2020

Low-z Scaling Relations Review - ISM✻@ST

A review talk on low-redshift scaling relations given to the ISM*@ST group.

Chris Clark

August 17, 2020
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Transcript

  1. 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

    View Slide

  2. 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

    View Slide

  3. Chris Clark
    Clark+ (2015)
    Scaling Relations‽

    View Slide

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

    View Slide

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

    View Slide

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

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  8. 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)

    View Slide

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

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

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  11. 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

    View Slide

  12. 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 & 0.025COLD-GASS: CO Legacy Database for GASS CO(1-0) for 350 representative GASS galaxies
    xCOLD-GASS: eXtended COLD-GASS Extending COLD-GASS down to M✻
    >109 for 530 galaxies total

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

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  14. 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

    View Slide

  15. 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

    View Slide

  16. 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

    View Slide

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

    View Slide

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

    View Slide

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

    View Slide

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

    View Slide

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

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

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

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

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

    View Slide