Journal
ASTRONOMY & ASTROPHYSICS
Volume 522, Issue -, Pages -Publisher
EDP SCIENCES S A
DOI: 10.1051/0004-6361/201014611
Keywords
galaxies: active; galaxies: jets; galaxies: elliptical and lenticular, cD; galaxies: ISM
Categories
Funding
- ASI [I/023/050]
- National Aeronautics and Space Administration
- National Science Foundation
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We use Chandra observations to estimate the accretion rate of hot gas onto the central supermassive black hole in four giant (of stellar mass M(*) similar to 10(11)-10(12) M(circle dot)) early-type galaxies located in the Virgo cluster. They are characterized by an extremely low radio luminosity, in the range L less than or similar to 3 x 10(25)-10(27) erg s(-1) Hz(-1). We find that, accordingly, accretion in these objects occurs at an extremely low rate, 0.2-3.7 x 10(-3) M(circle dot) yr(-1), and that they smoothly extend the relation accretion-jet power found for more powerful radio-galaxies. This confirms the dominant role of hot gas and of the galactic coronae in powering radio-loud active galactic nuclei across similar to 4 orders of magnitude in luminosity. A suggestive trend between jet power and location within the cluster also emerges.
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