Information on resource 'Sasmirala: Subarcsecond mid-infrared atlas of local AGN'

Services defined within this resource descriptor

• Sasmirala Photometry Details
• Sasmirala Subarcsecond mid-infrared atlas of local AGN

  These FITS images were generated with the IDL package MIRphot [Asmus2014] by extraction (and combination) of the sub-images from the chopped/nodded total images from COMICS, Michelle, T-ReCS and VISIR (see [Asmus2014] for details).

  The FITS images contain the central ~4 arcsec of each source centered on the (putative) nuclear position with North being up and East to the left. The WCS registration has been performed after extraction by using coordinates of the nucleus from other wavelengths (mostly 2MASS and NED). The uncertainty of these reference position is usually less than 1 arcsec. In addition, the imprecision of the assignment itself is ~1px ~ 0.1".

  The FITS images are flux calibrated (unit is mJy) using the Gaussian 2D fits to the corresponding STD observation (where available, otherwise using the median conversion factor for the used instrument/filter settings). Therefore, correction factors have to be applied in case other flux measurement methods are applied to the images. The flux values given in the FITS headers should be regarded as approximate values. In particular for the instruments, VISIR and COMICS, they are not necessarily exactly equal to the values provided in the photometry results table, because many flux measurements were performed during the process of combining individual subimages (all in MIRphot), instead of in the final combined image, provided here. The used total images are available upon request. Note, however, that these are just the products of the observatory-delivered pipelines with default parameters.

  [Asmus2014]

  (1, 2) Asmus D., Hoenig S.F., Gandhi P., Smette A., Duschl W.: The subarcsecond mid-infrared view of local active galactic nuclei: I. The N- and Q-band imaging atlas, 2014MNRAS.439.1648A

• Sasmirala Subarcsecond mid-infrared atlas of local AGN, Cone Search
• Sasmirala object pages

Tables defined within this resource descriptor

• sasmirala.atlas

  Final calibrated fits images.

• sasmirala.descriptions

  Descriptions and plots for the objects observed

• sasmirala.objects – queryable through TAP and ADQL

  Basic object properties and nuclear 12 and 18 micron continuum fluxes/ratios.

• sasmirala.photpar – queryable through TAP and ADQL

  Photometric parameters for all nuclear measurements.

Copyright, License, Acknowledgements

If you use this atlas please cite the Asmus et al. work given under the "source" metadata item.

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