J2157 VS TON 618
Introduction
As the search for optimal supermassive black hole (SMBH) binaries continues, two intriguing systems have recently gained attention in the astrophysics community: J2157 and TON 618. These objects offer a unique opportunity to study the properties of SMBHs and their environments.
J2157 vs TON 618
The quest for understanding the behaviour of SMBHs has led to the discovery of numerous candidate binaries. Among these, J2157 and TON 618 stand out due to their unusual characteristics and significant distances from Earth. In this review, we’ll delve into the details of these two systems, discussing their properties, observations, and implications for our understanding of supermassive black holes.
J2157: A Rapidly Growing Black Hole
In 2018, a team of astronomers announced the discovery of SMSS J215728.21-360215.1 (J2157), a quasar hosting one of the most massive known black holes, with an estimated mass of 34 billion solar masses. This black hole is notable for its rapid growth, consuming the equivalent of nearly one solar mass per day.
TON 618: The Distant Supermassive Black Hole
TON 618 is another remarkable system, located approximately 10.8 billion light-years away. This object is notable for its extremely high luminosity, which is 140 trillion times that of the Sun, making it one of the brightest objects in the known Universe.
Comparison of J2157 and TON 618
When comparing J2157 and TON 618, several key differences emerge:
| Property | J2157 | TON 618 |
|---|---|---|
| Distance from Earth (light-years) | ~12.5 billion | ~10.8 billion |
| Black Hole Mass (M☉) | ~34 billion | ~40 billion |
| Luminosity (times the Sun) | ~16 trillion | ~140 trillion |
Observations and Implications
Astronomers have observed both J2157 and TON 618 using a range of techniques, providing valuable insights into the properties of these systems:
- J2157: The detection of high luminosity from J2157 suggests that it is an active galactic nucleus (AGN), indicating that the system is actively accreting material onto its SMBH.
- TON 618: The extreme brightness of TON 618 implies a highly active quasar, with its luminosity powered by the accretion of matter onto its central SMBH.
Conclusion
J2157 and TON 618 are singular ultramassive black holes that push the limits of accretion physics. By comparing these two objects, we can better understand their properties and evolution. Future observations and studies will be crucial in unravelling the mysteries of these enigmatic systems.
Some Frequently Asked Questions and Their Answers
What is J2157?
J2157, also known as SMSS J215728.21-360215.1, is a quasar hosting one of the most massive known black holes, with an estimated mass of 34 billion times that of the Sun.
What is TON 618?
TON 618 is a distant and extremely luminous quasar, known to host one of the most massive black holes ever discovered, with an estimated mass of approximately 66 billion solar masses.
How far is J2157 from Earth?
J2157 is located approximately 12.5 billion light-years from Earth.
How far is TON 618 from Earth?
TON 618 is located approximately 10.4 billion light-years from Earth.
References
- sciencealert.com: This absolute monster of a black hole eats the equivalent of a sun per day…
- astrophotographylens.com: Astro smss j2157 black-hole…
- nerdist.com: fastest-growing black hole 34 billion suns…
- space.fandom.com: SMSS J215728.21 360215.1…
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