Unveiling recurrent jets of the ULX Holmberg II X-1: evidence for a massive stellar-mass black hole?

Abstract

We report on the discovery of an apparent triple radio structure hidden inside the radio bubble of the ultraluminous X-ray source Holmberg II X-1. The morphology is consistent with a collimated jet structure, which is observed to emit optically thin synchrotron radiation. The central component has a steep radio spectrum and is brighter than the outer components indicating a renewed radio activity. We estimate a minimum time-averaged jet power of 2 x 10^{39} erg/s that is associated with a time-averaged isotropic X-ray luminosity of at least 4 x 10^{39} erg/s. Our results suggest that Holmberg II X-1 is powered by a black hole of M_BH \geq 25 M_sun, that is inferred to be accreting at a high Eddington rate with intermittent radio activity.

5 pages, 3 figures, accepted for publication in MNRAS Letters

References in corpus (7)

• Accretion states and radio loudness in Active Galactic Nuclei: analogies with X-ray binaries
• The ultraluminous X-ray sources NGC 1313 X-1 and X-2: a broadband study with NuSTAR and XMM-Newton
• On IC 10 X-1, the Most Massive Known Stellar-Mass Black Hole
• The Orbital Period of the Wolf-Rayet Binary IC 10 X-1; Dynamic Evidence that the Compact Object is a Black Hole
• The jet-powered optical nebula of Cygnus X-1
• X-ray spectral state is not correlated with luminosity in Holmberg II X-1
• Intermediate-mass black holes in dwarf galaxies: the case of Holmberg II

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