VizieR Online Data Catalog: HST & Chandra obs. of elliptical galaxies (Lehmer+, 2020)

We chose to make use of the Harris+ (2013, J/ApJ/772/82) catalog of 422 galaxies with published measurements of globular cluster (GC) population properties. See Section 2 for further explanations.

The FUV to FIR SEDs for the selected 24 galaxies were extracted using publicly available data from GALEX, Swift, HST, SDSS, 2MASS, WISE, Spitzer, and Herschel. See Section 3.1 for further details.

By selection, our galaxies have HST ACS coverage in both "blue" and "red" filters (defined below) and cover the bulk of the stellar mass within the Ks-band ellipses of the galaxies. For 21 of the galaxies, we used the F475W (g₄₇₅) and F850LP (z₈₅₀) bandpasses as our blue and red filters, respectively; however, when this combination was not available, we utilized F475W and F814W (z₈₁₄) (NGC1404 and NGC4382) or F606W (r₆₀₆) and F814W (NGC3923) filter pairs. Observations were made between 2004 September and 2012 October; see Table 3.

We made use of Chandra ACIS-S and ACIS-I data sets that had aim points within 5' of the central coordinates of the galaxy (given in Table 1). The observation logs for all galaxies are presented in Table 5. In total 113 unique ObsIDs were used for the 24 galaxies in our sample, representing 5.5Ms of Chandra observation time. Observations span 2003 May to 2008 March.

(8 data files).