Evidence for a non-universal Kennicutt-Schmidt relationship using hierarchical Bayesian linear regression

• Published in: Monthly notices of the Royal Astronomical Society Vol. 430; no. 1; pp. 288 - 304
• Main Authors: Shetty, Rahul, Kelly, Brandon C., Bigiel, Frank
• Format: Journal Article
• Language: English
• Published: London Oxford University Press 21.03.2013
• Subjects: Astrophysics; Bayesian analysis; Magnetic fields; Parameter estimation; Regression analysis; Star & galaxy formation; Statistical analysis; methods: statistical; galaxies: ISM; galaxies: star formation

For investigating the relationship between the star formation rate and gas surface density, we develop a Bayesian linear regression method that rigorously treats measurement uncertainties and accounts for hierarchical data structure. The hierarchical Bayesian method simultaneously estimates the inte...