Munich, Oct 16 : An astronomer of Indian origin and his team have used the VLT (Very Large Telescope) and Rossi XTE satellite to probe violently variable black holes, providing insights into the colossal energy that flows at their hearts.
By mapping out how well the variations in visible light match those in X-rays on very short timescales, astronomers have shown that magnetic fields must play a crucial role in the way black holes swallow matter.
Like the flame from a candle, light coming from the surroundings of a black hole is not constant — it flares, sputters and sparkles.