Weighing Black Holes in high-z SCUBA Galaxies

Details Weighing Black Holes in high-z SCUBA Galaxies Weighing Black Holes in high-z SCUBA Galaxies

2006-12-18

arxiv.org/abs/astro-ph/0612499v2

Astronomy and Astrophysics

Astrophysics

7 pages, 3 figs; contribution for "Z-Machines to ALMA" workshop in Charlottesville, Virginia. Now has bibtex references

Scientific paper

Deep SCUBA surveys have uncovered a population of dust-enshrouded star-forming galaxies at z~2. Using the ultra-deep 2 Ms Chandra Deep Field-North survey we recently showed that a large fraction of these systems are also undergoing intense black-hole growth. Here we provide further constraints on the properties of the black holes in SCUBA galaxies using the virial black-hole mass estimator. We show that typical SCUBA galaxies are likely to host black holes with M_BH~10^7-10^8 M_solar which are accreting at, or close to, the Eddington limit. These results provide qualitative support for our earlier conclusion that the growth of the black hole lags that of the host galaxy in these massive ultraluminous galaxies.

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