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StrayCats: The NuSTAR Stray Light Source Catalog

Usage and Citations

The StrayCats paper has been published into ApJ! Please use the ADS entry for the paper to find published version (which includes the FITS table provided here) and the arXiv preprint. If you find the StrayCats catalog useful, please cite our paper and/or get in touch!

StrayCats Summary Table for all Sources with Products

StrayCats Summary Table for all Sources

Science Papers that use Stray Light data:

Summer Undergraduate Research Fellowships based on Stray Light data:

Posters on StrayCats

Sky distribution of Stray Light sources

Galactic distribution of Stray Light sources. Underlying image is the ESO Milky Way panorama

Use the ‘Zoom’ tool to manipulate this image rather than the “Box Select” tool.

The columns of the StrayCats FITS file are:

  1. StrayID:

    The Catalog identifier, which is StrayCatsI_XX where XX is the row number after the catalog is sorted the RA and Dec for the focused NuSTAR sequence ID.

  2. Classification

    The classifications are:

    1. ‘SL’: Identified stray light source
    2. ‘Complex’: Multiple overlapping SL sources are present, difficult to analyze)
    3. ‘Faint’: Potential faint stray light
    4. ‘GR’: Ghost-rays from a source just outside of the FoV
    5. ‘Unkn’: Stray light from an unidentified source
  3. SEQID

    The NuSTAR sequence ID

  4. Module

    The NuSTAR FPM that contains the stray light (A or B)

  5. Exposure

    The exposure time for this observation in seconds

  6. Multi (FITS only)

    Whether the sequence ID contains multiple stray light patterns (Yes/No)

  7. Primary

    Primary Target

  8. Time

    MJD time of the observation

  9. RA / DEC of the Primary

  10. SL Source

    If identified, otherwise ??

  11. SL Type

    If we have identified the type of the object, this will be here

  12. SIMAD_ID

    ID for the source in SIMBAD

  13. RA/Dec of SL source

    If known. Otherwise -999