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arXiv · 2606.05780

WISE Photometry of Galaxies within 10 Mpc

R. Brent Tully·Ehsan Kourkchi·James D. Neill
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Abstract

For photometry of galaxies in the infrared that extend to very low surface brightnesses, it is necessary to observe with telescopes in space. WISE and NEOWISE provide sensitive all-sky access to mid-infrared flux from galaxies at 3.4mum (W1) and 4.6mum (W2) bands. This study is complemented by the availability of accurate Tip of the Red Giant Branch distances for a large fraction of the targets. In this work, photometry is assembled on a complete volume limited sample of galaxies between one and ten Mpc brighter than absolute magnitude -13 in the W1 band. Stellar masses are inferred from W1 fluxes and measured distances. While most of the galaxies are dwarfs, most of the stellar mass is concentrated in a small number of giants.

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R. Brent Tully, Ehsan Kourkchi, James D. Neill. 2026-06-04. WISE Photometry of Galaxies within 10 Mpc. https://arxiv.org/abs/2606.05780

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