Document Type
Article
Publication Date
6-17-2009
Abstract
We calibrate the baryonic Tully-Fisher (BTF) relation using a sample of gas-dominated galaxies. These determine the absolute scale of the baryonic mass-rotation speed relation independent of the choice of stellar mass estimator. We find a BTF slope of 3.94±0.07 (random) 0.08 (systematic) and a zero point of 1.79±0.26 (random) ±0.25 (systematic). We apply this relation to estimate the stellar masses of star-dominated galaxies. This procedure reproduces the trend of mass-to-light ratio with color predicted by population synthesis models. The normalization is also correct, consistent with empirical estimates of the initial mass function used in such models.
Keywords
dwarf galaxies, galaxies, kinematics and dynamics
Publication Title
Astronomical Journal
Grant
505956
Rights
© The American Astronomical Society. All rights reserved. This content is free to access, download, and share. For all other uses, you must obtain permission to reuse content: https://journals.aas.org/article-charges-and-copyright/#AAS_material
Recommended Citation
A First Attempt to Calibrate the Baryonic Tully-Fisher Relation with Gas-Dominated Galaxies. D. V. Stark et al 2009 AJ 138 392
Manuscript Version
Final Publisher Version
Comments
Erratum: Three tables in the paper contained errors. Table 3 contained two incorrect column headers. Table 4 presented fitting parameters in improper columns in the last two rows. Finally, the values in Table 5 were calculated using the incorrect Baryonic Tully–Fisher (BTF) relation. We present here the corrected tables, and would like to thank the vigilant readers who caught our mistakes. [See Additional files for full erratum including corrected tables]