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The Nature of the Star Forming Main Sequence

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If you have a question about this talk, please contact Hannah Uebler.

The Star-Forming Main Sequence describes how the stellar mass and star formation rate of galaxies are observed to positively correlate. It is used frequently for defining different galaxy populations and predicting quantities. But is it a fundamental relationship? In this talk I will present results investigating the scaling relations that exist between star formation rate, stellar mass and molecular gas mass on both local (resolved) scales and global (galaxy wide) scales for galaxies both in the local universe and at high redshift. I use a combination of partial correlation coefficients and random forest regression to uncover which scaling relations are intrinsic, and those that are instead indirect by-products of other more fundamental relationships.

This talk is part of the Institute of Astronomy Seminars series.

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