Facts for Prelims (FFP)
Source: ISRO
Context: AstroSat has facilitated the discovery of ‘aperiodic modulation’ in high-energy X-ray photons during an ‘unusual’ outburst phase in a black hole X-ray binary (BH-XRB) system
- BH-XRB system consists of a black hole and a companion star that is locked in gravitation.
About AstroSat:
It was launched by ISRO in 2015 via PSLV-C30 into Low Earth Orbit and stands as India’s premier multi-wavelength space observatory. Designed to explore celestial sources across X-ray, optical, and UV spectral bands simultaneously, it hosts five payloads for comprehensive multi-wavelength observations. Its objectives include unravelling high-energy processes in binary star systems, identifying new transient X-ray sources, and investigating star birth regions, among others.
