Cosmic X-ray flashes are a phenomenon when the night sky seems calm to the naked eye but in the electromagnetic spectrum. The Cosmic X-rays prove that the universe is alive with violent and short-lived explosions for over a decade. One cosmic riddle made scientists wonder about the formation of the universe.
Cosmic X-ray flashes are also known as the Fast X-ray Transients (FXTs). These are unpredictable and energetic bursts seems few minutes or hours before the matter completely turns into dark matter. The capturing of the X-ray flash is nearly impossible because they disappear so quickly.
The astronomers of the Indian Institute of Astrophysics(IIA) have traced the mechanics behind a powerful cosmic X-ray flash. The discovery brings us closer to mapping of voilent lifecycle of dead stars and cosmic explosions.
What are Cosmic X-ray flashes?
Cosmic X-ray flashes are also known as the Fast X-ray Transients (FXTs). These are unpredictable and energetic bursts seems few minutes or hours before the matter completely turns into dark matter. The capturing of the X-ray flash is nearly impossible because they disappear so quickly.
These flashes are high-energy, non repeating burts of low-energy X-rays that originated from deep space. They hit the cosmos with a massive punch of energetic radiation, which causes a brightness and fades rapidly. Cosmic X rays are different from the Black Holes
Over the years scientists have struggled to identify exactly what triggers the Cosmic X-rays. However, they proposed several theories or theoretical progenitors to prove what are the reasons that cause the cosmic bursts:
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Core collapse supernovae are a violent structural collapse of a massive star which results in a supernova shock breakout.
Binary neutron star mergers it occurs when two ultra dense neutron starts colliding and produce a millisecond spinning neutron star with an extreme magnetic field also known as a magnetar.
Tidal disruption events are intermediate mass black holes ripping a white dwarf star(dead star) to shreds.
Scientists have witnessed a breakthrough in the deconstruction of an event called EP241107a. It arrived via a flash designed EP241105a which was detected on November 7, 2025. The cosmic burst was first recorded by the Einstein Probe a cutting-edge space observatory which is designed to survey high sky.
The team of scientists led by postdoctoral fellows Deepak Eappachen and Arvid Balasubramanian utilized a multi-wavelength observational approach by tracking the event across radio optical and X-ray spectrums when they pieced together a definitive profile of the explosion.
EP241107 is a rare ‘Orphan afterglow’ which occurs when a cosmic explosion shoots out a high-energy jet that is not pointed directly at Earth. When the event occurs at the lower-energy boundary of the gamma-ray burst spectrum.
The study confirms that these cosmic x-ray flashes are the birth cries of newborn black holes or hyper magnetized neutron stars. It is triggered by the catastrophic collapse of a giant star or the collision of two dead stars.
The tracking of EP241107a was published in the Monthly Notices of the Royal Astronomical Society which marks a massive step forward for modern astronomy.
Here are the telescope which records about the activities of the Universe afrom around the globle
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Telescope / Facility
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Waveband Utilized
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Location / Agency
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Einstein Probe
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X-ray (Discovery)
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International Space Mission
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Karl G. Jansky Very Large Array (VLA)
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Radio
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New Mexico, USA
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Himalayan Chandra Telescope (HCT)
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Visible Light
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Hanle, Ladakh (India)
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GROWTH India Telescope (GIT)
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Visible Light
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Hanle, Ladakh (India)
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Upgraded Giant Metrewave Radio Telescope
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Radio Follow-up
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NCRA, India
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W. M. Keck Observatory
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Optical
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Hawaii, USA
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