A1 Refereed original research article in a scientific journal
THE OBSCURATION TO THE NUCLEUS OF IC-5063
Authors: SIMPSON C, WARD M, KOTILAINEN J
Publisher: BLACKWELL SCIENCE LTD
Publication year: 1994
Journal:: Monthly Notices of the Royal Astronomical Society
Journal name in source: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Journal acronym: MON NOT R ASTRON SOC
Volume: 271
Issue: 1
First page : 250
Last page: 256
Number of pages: 7
ISSN: 0035-8711
DOI: https://doi.org/10.1093/mnras/271.1.250
Abstract
We interpret the data on the nearby active galaxy IC 5063 (PKS 2048-57) within the framework of an obscured quasar, as proposed by current unified schemes for active galactic nuclei (AGN). We apply new techniques to estimate the reddening towards the nucleus of obscured AGN, based on infrared photometry and line-to-continuum correlations, and conclude that the previously claimed detections of the transmitted quasar continuum in the H and K bands are probably due to the presence of foreground dust, which results in reddening of the starlight within small apertures. From the data available on this object and established correlations between quasar properties, we deduce the amount of visual obscuration towards the active nucleus in IC 5063 to be in the range A(V) = 65-105 mag.
We interpret the data on the nearby active galaxy IC 5063 (PKS 2048-57) within the framework of an obscured quasar, as proposed by current unified schemes for active galactic nuclei (AGN). We apply new techniques to estimate the reddening towards the nucleus of obscured AGN, based on infrared photometry and line-to-continuum correlations, and conclude that the previously claimed detections of the transmitted quasar continuum in the H and K bands are probably due to the presence of foreground dust, which results in reddening of the starlight within small apertures. From the data available on this object and established correlations between quasar properties, we deduce the amount of visual obscuration towards the active nucleus in IC 5063 to be in the range A(V) = 65-105 mag.
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