| Issue |
A&A
Volume 390, Number 2, August I 2002
|
|
|---|---|---|
| Page(s) | 423 - 430 | |
| Section | Cosmology (including clusters of galaxies) | |
| DOI | https://doi.org/10.1051/0004-6361:20020801 | |
| Published online | 12 July 2002 | |
Relation between dust and radio luminosity in optically selected early type galaxies
Sterrewacht Leiden, Postbus 9513, 2300 RA Leiden, The Netherlands
Corresponding author: D. Krajnović, davor@strw.leidenuniv.nl
Received:
21
February
2002
Accepted:
7
May
2002
We have surveyed an optical/IR selected sample of nearby E/S0 galaxies with and without nuclear dust structures with the VLA at 3.6 cm to a sensitivity of 100 μ Jy. We can construct a Radio Luminosity Function (RLF) of these galaxies to ~1019 W Hz-1 and find that ~50% of these galaxies have AGNs at this level. The space density of these AGNs equals that of starburst galaxies at this luminosity. Several dust-free galaxies have low luminosity radio cores, and their RLF is not significantly less than that of the dusty galaxies.
Key words: galaxies: elliptical and lenticular, cD / galaxies: luminosity function, mass function / galaxies: nuclei
© ESO, 2002
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