Photometric catalogs of 20 nearby galaxies covered by SPIRITS
- 1. Indian Institute of Technology, Bombay
- 2. California Institute of Technology
- 3. South African Astronomical Observatory
- 4. Space Telescope Science Institute
- 5. NASA Ames Research Center
- 6. University of Colorado
- 7. Pennsylvania State University
- 8. Minnesota Institute for Astrophysics
- 9. Indian Institute of Astrophysics
- 10. Institute of Space and Astronautical Science, Japan
Description
3.6, 4.5, 5.8 and 8.0 micron point-spread function photometric catalogs for the following 20 galaxies covered by SPIRITS (Spitzer InfraRed Intensive Transients Survey) -
Fornax, Leo I, NGC6822, NGC185, NGC147, M32, IC1613, M110, WLM, IC342, M81, M83, NGC6946, M101, M106, M51, NGC6744, M63, NGC2903, M104
For each galaxy, we performed psf photometry on archival Spitzer/IRAC 3.6 (ch1), 4.5 (ch2), 5.8 (ch3) and 8.0 (ch4) micron images (available at the Spitzer Heritage Archive). Each datafile presented here is a catalog containing the coordinates, magnitudes and uncertainties in magnitudes of all sources detected in the 20 galaxies for a particular IRAC filter.
Descriptions of columns in each datafile:
Column 1 : Right Ascension of the source (degrees)
Column 2 : Declination of the source (degrees)
Column 3 : PSF magnitude of the source for the IRAC filter corresponding to the datafile. (mags)
Column 4 : Uncertainty in PSF magnitude of the source (mags)
Column 5 : x coordinate of the source in the image (pixels)
Column 6 : y coordinate of the source in the image (pixels)
Column 7 : PGC Name of the host galaxy of the source