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Dust in Early Type Galaxies observed at the CFHT

Published online by Cambridge University Press:  04 August 2017

J. Kormendy  and
J. Stauffer
J. Kormendy
Affiliation:
Dominion Astrophysical Observatory
J. Stauffer
Affiliation:
Dominion Astrophysical Observatory

Extract

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A program of CCD imaging of early-type galactic nuclei carried out at the Canada-France-Hawaii Telescope (Kormendy, these proceedings) reveals dust in an unusually large fraction of the galaxies. Often the dust is in a ring or disk whose radius is comparable to the core radius rc ; since rc is small, our detection rate benefits from the excellent CFHT seeing (median FWHM = O.“7; scale = O.“22 pixel−1 for an RCA CCD used at the Cassegrain focus). We plan to prepare a photographic atlas of unsharp-masked images, and to study correlations between dust properties and nuclear emission lines, HI and X-ray gas content, radio continuum jets and the overall light distributions of the program galaxies.

References

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