VizieR Online Data Catalog: Chandra & VLA obs. of 14 high-redshift QSOs (Snios+, 2021)

Each target selected for our survey was observed with Chandra using the Advanced CCD Imaging Spectrometer (ACIS) with the aimpoint centered on the S3 chip. Details on our Chandra observations (spanning 2018-Jan-19 to 2019-Mar-10) are provided in Table 1.

In addition to the X-ray data, radio observations of the sample were included in our analysis. We obtained new Karl G. Jansky Very Large Array (VLA) A-array observations of these 14 quasars (see Table 2 for a summary) as part of a more extensive radio imaging and follow-up program of this sample (Gobeille+ 2014arXiv1406.4797G). The majority of the VLA maps (13/14) were obtained as single ~4-6 minute snapshot observations in November 2012 (program 12B-230) using two 1GHz wide intermediate-frequency bands centered at 4.9 and 7.4GHz (effective center frequency of 6.2GHz). For J0833+0959, we used an earlier VLA A-array 1.4GHz map we obtained in October 2008 (program AW748) and published in Gobeille+ (2014arXiv1406.4797G).

We also have compiled optical properties of our sample in an effort to investigate the optical and X-ray relationship among our sources. In keeping with our previous quasar analysis (Snios+ 2020ApJ...899..127S), we obtained optical fluxes at the rest-frame wavelength of 1450Å. For our current sample, this corresponds to observed wavelengths between 5850-7000Å. We consequently utilized the monochromatic AB apparent magnitude from the Pan-STARRS r band as it has an effective wavelength of 6241Å. See Section 6.

(4 data files).