Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

The Baryonic Tully-Fisher Relation.

McGaugh, Schombert, Bothun

    The Astrophysical Journal
    |April 19, 2000
    PubMed
    Summary

    The Tully-Fisher relation, linking galaxy brightness to rotation speed, shows a break for faint galaxies. Including gas mass reveals a fundamental relation between baryonic mass and rotation velocity.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same journal

    The Progenitor Systems of Classical Novae in M31.

    The Astrophysical journal·2025
    Same journal

    The Impact of Extended CO<sub>2</sub> Cross Sections on Temperate Anoxic Planet Atmospheres.

    The Astrophysical journal·2025
    Same journal

    Topological Approach to Void Finding Applied to the SDSS Galaxy Map.

    The Astrophysical journal·2025
    Same journal

    New Ritz Wavelengths and Transition Probabilities of Parity-forbidden [Mn II] Lines of Astrophysical Interest.

    The Astrophysical journal·2024
    Same journal

    Abundances of Neutron-capture Elements in 62 Stars in the Globular Cluster Messier 15.

    The Astrophysical journal·2024
    Same journal

    Quantification of High-dimensional Non-Gaussianities and Its Implication to Fisher Analysis in Cosmology.

    The Astrophysical journal·2023

    Area of Science:

    • Astrophysics
    • Galactic Astronomy
    • Cosmic Evolution

    Background:

    • The Tully-Fisher relation is a key tool for measuring galaxy distances and understanding galaxy properties.
    • Previous studies primarily focused on luminosity, potentially overlooking the role of baryonic mass.

    Purpose of the Study:

    • To investigate the Tully-Fisher relation across a wide range of stellar masses and circular velocities.
    • To determine if the relation holds true when considering the total baryonic mass of galaxies.

    Main Methods:

    • Analyzed galaxy data spanning five decades in stellar mass.
    • Examined circular velocities from 30 to 300 km/s.
    • Compared the optical Tully-Fisher relation with a baryonic mass-based relation.

    Main Results:

    • A distinct break was observed in the optical Tully-Fisher relation for galaxies with circular velocities below 90 km/s.
    • Faint galaxies were found to be gas-rich.
    • Incorporating gas mass into the baryonic disk mass (Md=M*+Mgas) re-established a single, linear relation.

    Conclusions:

    • The Tully-Fisher relation is fundamentally a relationship between total baryonic mass and rotation velocity (Md~V4c).
    • Gas content is crucial for understanding the Tully-Fisher relation, especially for low-mass galaxies.
    • This finding refines our understanding of galaxy scaling relations and mass-velocity correlations.

    Related Experiment Videos