Spitzer observations of Abell 1763 - I: infrared and optical photometry

TL;DR

This paper provides a comprehensive photometric analysis of galaxy cluster Abell 1763 across visible and infrared wavelengths, including data reduction, source extraction, and catalog creation for future scientific use.

Contribution

It introduces detailed data reduction and source extraction methods for multi-wavelength observations of Abell 1763, along with publicly available catalogs and images.

Findings

Deep infrared imaging of Abell 1763 out to 3 virial radii.

Catalogs of IR sources with multi-wavelength counterparts.

Data reduction techniques for complex multi-instrument datasets.

Abstract

We present a photometric analysis of the galaxy cluster Abell 1763 at visible and infrared wavelengths. Included are fully reduced images in r', J, H, and Ks obtained using the Palomar 200in telescope, as well as the IRAC and MIPS images from Spitzer. The cluster is covered out to approximately 3 virial radii with deep 24um imaging (a 5? depth of 0.2 mJy). This same field of 40' by 40' is covered in all four IRAC bands as well as the longer wavelength MIPS bands (70 and 160um). The r' imaging covers 0.8 deg2 down to 25.5 magnitudes, and overlaps with most of the MIPS field of view. The J, H, Ks images cover the cluster core and roughly half of the filament galaxies, which extend towards the neighboring cluster, Abell 1770. This first, in a series of papers on Abell 1763, discusses the data reduction methods and source extraction techniques used for each dataset. We present catalogs of infrared (IR) sources (with 24 and/or 70um emission) and their corresponding emission in the optical (u', g', r', i', z'), and Near- to Far-IR (J, H, Ks, IRAC, and MIPS 160um). We provide the catalogs and reduced images to the community through the NASA/IPAC Infrared Science Archive (IRSA).