Journal
ASTROPHYSICAL JOURNAL LETTERS
Volume 731, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/2041-8205/731/2/L41
Keywords
galaxies: active; galaxies: elliptical and lenticular, cD; radio continuum: galaxies
Categories
Funding
- Commonwealth of Australia for operation as a National Facility
- National Aeronautics and Space Administration
- National Science Foundation
Ask authors/readers for more resources
We have measured the radio continuum emission of 396 early-type galaxies brighter than K = 9, using 1.4 GHz imagery from the NRAO Very Large Array Sky Survey, Green Bank 300 ft Telescope, and 64 m Parkes Radio Telescope. For M-K < -24 early-type galaxies, the distribution of radio powers at fixed absolute magnitude spans four orders of magnitude and the median radio power is proportional to K-band luminosity to the power 2.78 +/- 0.16. The measured flux densities of M-K < -25.5 early-type galaxies are greater than zero in all cases. It is thus highly likely that the most massive galaxies always host an active galactic nucleus or have recently undergone star formation.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available