Swift/UVOT+MaNGA (SwiM) Value-added Catalog

Abstract

We introduce the Swift/UVOT+MaNGA (SwiM) value added catalog, which comprises 150 galaxies that have both SDSS/MaNGA integral field spectroscopy and archival Swift/UVOT near-UV (NUV) images. The similar angular resolution between the three Swift/UVOT NUV images and the MaNGA maps allows for a high-resolution comparison of optical and NUV indicators of star formation, crucial for constraining quenching and attenuation in the local universe. The UVOT NUV images, SDSS images, and MaNGA emission line and spectral index maps have all been spatially matched and re-projected to match the point spread function and pixel sampling of the Swift/UVOT uvw2 images, and are presented in the same coordinate system for each galaxy. The spectral index maps use the definition first adopted by Burstein et al. (1984), which makes it more convenient for users to compute spectral indices when binning the maps. Spatial covariance is properly taken into account in propagating the uncertainties. We also provide a catalog that includes PSF-matched aperture photometry in the SDSS optical and Swift NUV bands. In an earlier, companion paper (Molina et al. 2020) we used a subset of these galaxies to explore the attenuation laws of kiloparsec-sized star forming regions. The catalog, maps for each galaxy, and the associated data models, are publicly released on the SDSS website (https://data.sdss.org/sas/dr16/manga/swim/v3.1/).

arXiv commentSubmitted to ApJ on July 8, 2020, v2 updated VAC url to correct website, v3 updated SwiM catalog Data Model in Appendix, v4 Accepted to ApJS Sept. 18, 2020

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Cited by in corpus (2)

• MaNGA galaxy properties -- I. An extensive optical, mid-infrared photometric, and environmental catalogue
• The Seventeenth Data Release of the Sloan Digital Sky Surveys: Complete Release of MaNGA, MaStar and APOGEE-2 Data