VizieR Online Data Catalog: StrayCats: NuSTAR stray light obs. (Grefenstette+, 2021)
Abstract
We present StrayCats, a catalog of Nuclear Spectroscopic Telescope ARray (NuSTAR) stray light observations of X-ray sources. Stray light observations arise for sources 1°-4° away from the telescope pointing direction. At this off-axis angle, X-rays pass through a gap between the optics and aperture stop and so do not interact with the X-ray optics; instead, they directly illuminate the NuSTAR focal plane. We have systematically identified and examined over 1400 potential observations resulting in a catalog of 436 telescope fields and 78 stray light sources that have been identified. The sources identified include historically known persistently bright X-ray sources, X-ray binaries in outburst, pulsars, and type I X-ray bursters. In this paper, we present an overview of the catalog, how we identified the StrayCats sources, and the analysis techniques required to produce high-level science products. Finally, we present a few brief examples of the science quality of these unique data.
(1 data file).- Publication:
-
VizieR Online Data Catalog
- Pub Date:
- August 2022
- DOI:
- 10.26093/cds/vizier.19090030
- Bibcode:
- 2022yCat..19090030G
- Keywords:
-
- Binaries: X-ray;
- X-ray sources;
- Stars: neutron;
- Black holes;
- Pulsars;
- Cross identifications