The Baryonic Tully-Fisher Relation I: WISE/Spitzer Photometry
arxiv(2024)
摘要
We present WISE W1 photometry of the SPARC (Spitzer Photometry and Accurate
Rotation Curves) sample. The baseline of near-IR fluxes is established for use
by stellar mass models, a key component to the baryonic Tully-Fisher relation
and other kinematic galaxies scaling relations. We focus this paper on
determination of the characteristics of the W1 fluxes compared to IRAC 3.6
fluxes, internal accuracy limitations from photometric techniques, external
accuracy by comparison to other work in the literature and the range of W1 to
IRAC 3.6 colors. We outline the behavior of SDSS g, W1 and IRAC 3.6 colors with
respect to underlying SED features. We also note a previously unknown
correlation between WISE colors and the central surface brightness, probably
related to the low metallicity of low surface brightness dwarfs.
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