SIMBAD references

2005ApJ...627L..93R - Astrophys. J., 627, L93-L96 (2005/July-2)

Measuring supermassive black holes in distant galaxies with central lensed images.


Abstract (from CDS):

The supermassive black hole at the center of a distant galaxy can be weighed, in rare but realistic cases, when the galaxy acts as a strong gravitational lens. The central image that should be produced by the lens is either destroyed or accompanied by a second central image, depending on the mass of the black hole. We demonstrate that when a central image pair is detected, the mass of the black hole can be determined with an accuracy of ≲0.1 dex, if the form of the smooth mass distribution near the galaxy core is known. Uncertainty in the central mass distribution introduces a systematic error in the black hole mass measurement. However, even with nearly complete ignorance of the inner mass distribution, the black hole mass can still be determined to within a factor of 10. Central image pairs should be readily observable with future radio interferometers, allowing this technique to be used for a census of supermassive black holes in inactive galaxies at significant redshift (0.2≲z≲1.0).

Abstract Copyright:

Journal keyword(s): Black Hole Physics - Galaxies: Nuclei - Cosmology: Gravitational Lensing

CDS comments: Images B, C, D of the three-image lens PMN J1632-0033 are [WMH2002] J1632-0033 A, B, C in SIMBAD

Simbad objects: 4

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