Wise TF: A mid-infrared, 3.4 μm extension of the tully-fisher relation using wise photometry

D.J. Lagattuta, J.R. Mould, Lister Staveley-Smith, T. Hong, Chris Springob, K.L. Masters, B.S. Koribalski, D.H. Jones

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    21 Citations (Scopus)

    Abstract

    We present a mid-infrared Tully-Fisher (TF) relation using photometry from the 3.4 μm W1 band of the Wide-field Infrared Survey Explorer (WISE) satellite. The WISE TF relation is formed from 568 galaxies taken from the all-sky 2MASS Tully-Fisher (2MTF) galaxy catalog, spanning a range of environments including field, group, and cluster galaxies. This constitutes the largest mid-infrared TF relation constructed to date. After applying a number of corrections to galaxy magnitudes and line widths, we measure a master TF relation given by M corr = -22.24-10.05[log (W corr)-2.5], with an average dispersion of σWISE = 0.686 mag. There is some tension between WISE TF and a preliminary 3.6 μm relation, which has a shallower slope and almost no intrinsic dispersion. However, our results agree well with a more recent relation constructed from a large sample of cluster galaxies. We additionally compare WISE TF to the near-infrared 2MTF template relations, finding a good agreement between the TF parameters and total dispersions of WISE TF and the 2MTF K-band template. This fact, coupled with typical galaxy colors of (K-W1) ∼ 0, suggests that these two bands are tracing similar stellar populations, including the older, centrally-located stars in the galactic bulge which can (for galaxies with a prominent bulge) dominate the light profile. © 2013. The American Astronomical Society. All rights reserved..
    Original languageEnglish
    Pages (from-to)12pp
    JournalThe Astrophysical Journal
    Volume771
    DOIs
    Publication statusPublished - 2013

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