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Subsecond periodic radio oscillations in a microquasar - Nature
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Powerful relativistic jets are one of the ubiquitous features of accreting black holes in all scales1–3. GRS 1915 + 105 is a well-known fast-spinning black-hole X-ray binary4 with a relativistic jet, termed a 'microquasar', as indicated by its superluminal motion of radio emission5,6. It has exhibited persistent X-ray activity over the last 30 years, with quasiperiodic oscillations of approximately 1–10 Hz (refs. 7–9) and 34 and 67 Hz in the X-ray band10.
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