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On the Black Hole Mass-Bulge Mass Relation

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Hring, Nadine, Rix, Hans-Walter·2004·The Astrophysical Journal

Abstract

We have reexamined the relation between the mass of the central black holes in nearby galaxies, M bh , and the stellar mass of the surrounding spheroid or bulge, M bulge . For a total of 30 galaxies bulge masses were derived through Jeans equation modeling or adopted from dynamical models in the literature. In stellar mass-to-light ratios, the spheroids and bulges span a range of a factor of 8. The bulge masses were related to well-determined black hole masses taken from the literature. With these improved values for M bh , compared to Magorrian et al., and our redetermination of M bulge , we find that the M bh - M bulge relation becomes very tight. We find M bh ~ M with an observed scatter of ≲0.30 dex, a fraction of which can be attributed to measurement errors. The scatter in this relation is therefore comparable to the scatter in the relations of M bh with σ and the stellar concentration. These results confirm and refine the work of Marconi & Hunt. For M bulge ~ 5 × 10 10 M ☉ the median black hole mass is 0.14% ± 0.04% of the bulge mass.

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Metadata

Authors
Hring, N., & Rix, H.-W.
Venue
The Astrophysical Journal
Published
2004-03-04
Volume
604
Issue
2
Pages
L89-L92
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
OpenAlex
W2040951173
Cited by
1,626
References
1
FWCI
35.45
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: On the Black Hole Mass-Bulge Mass Relation. https://app.cochat.ai/papers/10.1086/383567
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Hring, N., & Rix, H.-W. (2004). On the Black Hole Mass-Bulge Mass Relation. The Astrophysical Journal. https://doi.org/10.1086/383567

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