A group of astronomers from around the world, including Raman Research Institute (Live) In Bengaluru, the brightest glow of blazer PG 1553+113 said and said that the analysis would pave the way for understanding the process of galaxy merger in the early universe.
Researchers at RRI, along with collaborators from around the world, captured this glow using the 1.3-meter JC Bhattacharya Telescope.JCBT), knight, India. Astronomers then spent 76 nights studying in the said blazer using nine different telescopes around the world.
The blazer is an active galactic nucleus (AGN)—a compact region at the center of the Milky Way. A flare is a sudden flash of brightness in a blazer, as we know about solar flares.
Astronomers said PG 1553+113, a primary candidate for a binary supermassive black hole system, has recently baffled scientists because of its repetitive gamma-ray emissions, which are quasi-periodic.
RRI is an autonomous institute of the Department of Science and Technology (DST). NS dst, indicating that galaxies merge frequently throughout cosmic time, noted that whenever two galaxies harbor a supermassive blackhole (SMBH) at their centres, the formation of a binary SMBH is inevitable.
“SMBHs cannot be observed spatially with current techniques. So scientists have to rely on indirect methods to search for them. One of these indirect search strategies is based on detecting periodicity in the source. Quasi- Some recent candidates exhibiting periodic light curve variability have emerged from large-sky surveys and long-term monitoring programs. PG 1553+113 is one of them that enters an explosion and produces very high energy emissions,” said DST .
This research is published in the journal ‘Astronomy and Astrophysics’. Astronomers said in the paper: “We analyzed the light curves using various statistical tests, fitting and cross-correlation techniques, and methods of searching for periodicity. We corrected the corresponding light curves for long time variations before and Later examined color-magnitude diagrams.
DST said the researchers studied the blazer’s multiband flux and spectral variability, and said they estimated the periodicity, radius, emission field size, magnetic field strength and electron energy for the blazer.
“Furthermore, after recording the flare, they have found that the accelerated particles cool down synchroton Radiation (popularly known as synchrotron cooling) and is the major emission mechanism. These findings, which may help to explore the binary black hole nature of PG 1553+113, may help to understand the process of galaxy mergers in the early universe,” DST said.
It added that the analysis also provides interesting targets for observing the multi-messengers such as light, neutrinos and gravitational waves that help us study the universe.
Researchers at RRI, along with collaborators from around the world, captured this glow using the 1.3-meter JC Bhattacharya Telescope.JCBT), knight, India. Astronomers then spent 76 nights studying in the said blazer using nine different telescopes around the world.
The blazer is an active galactic nucleus (AGN)—a compact region at the center of the Milky Way. A flare is a sudden flash of brightness in a blazer, as we know about solar flares.
Astronomers said PG 1553+113, a primary candidate for a binary supermassive black hole system, has recently baffled scientists because of its repetitive gamma-ray emissions, which are quasi-periodic.
RRI is an autonomous institute of the Department of Science and Technology (DST). NS dst, indicating that galaxies merge frequently throughout cosmic time, noted that whenever two galaxies harbor a supermassive blackhole (SMBH) at their centres, the formation of a binary SMBH is inevitable.
“SMBHs cannot be observed spatially with current techniques. So scientists have to rely on indirect methods to search for them. One of these indirect search strategies is based on detecting periodicity in the source. Quasi- Some recent candidates exhibiting periodic light curve variability have emerged from large-sky surveys and long-term monitoring programs. PG 1553+113 is one of them that enters an explosion and produces very high energy emissions,” said DST .
This research is published in the journal ‘Astronomy and Astrophysics’. Astronomers said in the paper: “We analyzed the light curves using various statistical tests, fitting and cross-correlation techniques, and methods of searching for periodicity. We corrected the corresponding light curves for long time variations before and Later examined color-magnitude diagrams.
DST said the researchers studied the blazer’s multiband flux and spectral variability, and said they estimated the periodicity, radius, emission field size, magnetic field strength and electron energy for the blazer.
“Furthermore, after recording the flare, they have found that the accelerated particles cool down synchroton Radiation (popularly known as synchrotron cooling) and is the major emission mechanism. These findings, which may help to explore the binary black hole nature of PG 1553+113, may help to understand the process of galaxy mergers in the early universe,” DST said.
It added that the analysis also provides interesting targets for observing the multi-messengers such as light, neutrinos and gravitational waves that help us study the universe.
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