An actively accreting massive black hole in the dwarf starburst galaxy Henize 2-10

Amy E. Reines (), Gregory R. Sivakoff, Kelsey E. Johnson and Crystal L. Brogan
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Amy E. Reines: University of Virginia, 530 McCormick Road, Charlottesville, Virginia 22904, USA
Gregory R. Sivakoff: University of Virginia, 530 McCormick Road, Charlottesville, Virginia 22904, USA
Kelsey E. Johnson: University of Virginia, 530 McCormick Road, Charlottesville, Virginia 22904, USA
Crystal L. Brogan: National Radio Astronomy Observatory, 520 Edgemont Road

Nature, 2011, vol. 470, issue 7332, 66-68

Abstract: Bursting onto the scene The starburst in Henize 2-10, a relatively nearby blue compact dwarf galaxy, has attracted the attention of astronomers for decades, in part because of its prodigious rate of star formation — ten times that of the Large Magellanic Cloud. Now a study of Henize 2-10 at centimetre radio wavelengths and in the near-infrared reveals a compact radio source at its centre that is spatially coincident with a hard X-ray source. This points to the presence of an actively accreting massive black hole, but one not associated with a bulge, a nuclear star cluster or any other well-defined nucleus. This means that Henize 2-10 may reflect an early phase of black hole and galaxy evolution that has not been observed previously.

Date: 2011
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DOI: 10.1038/nature09724

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