The XSINGS Survey: Project Overview and Early Results

Mathematics – Logic

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The XSINGS survey is the X-ray component of the Spitzer Nearby Infrared Galaxies Survey (SINGS). SINGS is a Spitzer Legacy survey of a diverse sample of 75 nearby (d < 30Mpc) galaxies, designed to cover a wide range of galaxy properties such as morphological type, star formation rate (SFR), stellar mass and metallicity, as well as low-luminosity nuclear activity, inclination, surface brightness, bar structure and environment. SINGS provides uniform Spitzer (IR), GALEX (UV) and ground-based optical and radio observations of the sample, and has enabled the mapping of current star formation and improved SFR diagnostics at these wavelengths. The aim of XSINGS is to use these multiwavelength data and associated measurements in conjunction with moderately deep Chandra X-ray observations to study the relationships between X-ray emission (X-ray binaries, nuclear activity, hot ISM) and other galaxy properties. We currently have Chandra observations of 75% of the SINGS sample, including complete coverage of galaxies within 10Mpc, spanning a SFR range of 0-20 solar masses per year. Here we give an overview of the project, and show some early results.

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