Archive · 21 Aug 2025
IIT Guwahati, ISRO Study Mysterious Black Hole X-Ray Signals
Researchers studied a black hole far away by looking at its X-ray signals.
They found that these signals would change, going from bright to dim and back again.
Scientists from IIT Guwahati, ISRO, and the University of Haifa worked together on this.
The bright signals flickered very fast, like a light flashing rapidly.
This helped them understand how the corona, a hot area around the black hole, changes shape.
This new information helps us learn more about how black holes grow and impact their surroundings.
Scientists observed an X-ray signal pattern from a black hole.
The black hole GRS 1915+105 is 28,000 light-years from Earth.
Researchers used data from India's AstroSat observatory.
X-ray brightness alternated between bright and dim phases.
Rapid flickering occurred during the bright phase, about 70 times per second.
- Who
- Researchers from IIT Guwahati, UR Rao Satellite Centre (ISRO), and the University of Haifa were involved.
- What
- Scientists detected a unique X-ray signal pattern from a black hole.
- When
- The research was conducted using data from India's AstroSat observatory.
- Where
- The black hole GRS 1915+105 is located nearly 28,000 light-years from Earth.
- Why
- To understand the behavior of black holes and their impact on their surroundings and galaxies.
- Research Team
- IIT Guwahati, URSC (ISRO), University of Haifa
- Object Studied
- Black hole GRS 1915+105
- Distance
- 28,000 light-years
- Signal Type
- X-ray
- Observatory
- AstroSat
- Flickering Frequency
- 70 times per second (about 70 Hz)
