The multiwavelength Tully-Fisher relation with spatially resolved HI kinematics

Anastasia A. Ponomareva*, Marc A.W. Verheijen, Reynier F. Peletier, Albert Bosma

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    43 Citations (Scopus)

    Abstract

    In this paper, we investigate the statistical properties of the Tully-Fisher relation (TFr) for a sample of 32 galaxies with measured distances from the Cepheid period-luminosity relation and/or TRGB stars. We take advantage of panchromatic photometry in 12 bands (from FUV to 4.5 μm) and of spatially resolved HI kinematics. We use these data together with three kinematic measures (Wi 50, Vmax and Vflat) extracted from the global HI profiles or HI rotation curves, so as to construct 36 correlations allowing us to select the one with the least scatter.We introduce a tightness parameter σ⊥ of the TFr, in order to obtain a slope-independent measure of the goodness of fit. We find that the tightest correlation occurs when we select the 3.6 μm photometric band together with the Vflat parameter extracted from the HI rotation curve.

    Original languageEnglish
    Pages (from-to)2387-2400
    Number of pages14
    JournalMonthly Notices of the Royal Astronomical Society
    Volume469
    Issue number2
    DOIs
    Publication statusPublished - 1 Aug 2017

    Fingerprint

    Dive into the research topics of 'The multiwavelength Tully-Fisher relation with spatially resolved HI kinematics'. Together they form a unique fingerprint.

    Cite this