SUBSCRIBE NOW TO SPACE TODAY PLUS PREMIUM, ONLY R$29.00 PER MONTH, LESS THAN 1 REAL PER DAY!!! The article “Discovery of az = 7.15 AGN with the VLT: the most distant quasar known to date” describes the discovery…
SUBSCRIBE NOW TO SPACE TODAY PLUS PREMIUM, ONLY R$29.00 PER MONTH, LESS THAN 1 REAL PER DAY!!!
The article “Discovery of az = 7.15 AGN with the VLT: the most distant quasar known to date” describes the discovery of an extremely distant AGN (active galaxy nucleus), located 13.03 billion light-years from Earth. This AGN is the most distant discovered to date and provides valuable information about the early universe, when the universe was only about 5% of its current age. The discovery was made using the European Southern Observatory’s (ESO) Very Large Telescope (VLT) and opens up new possibilities for understanding the evolution of galaxies and supermassive black holes in the early universe.
The researchers used observations from the NIRSpec-IFU instrument aboard the James Webb Space Telescope (JWST) to study AGN. NIRSpec-IFU is an integral field spectrograph that allows spectra to be obtained in different regions of a galaxy, providing detailed information about the spatial distribution and spectral properties of the studied object. Additionally, the AGN was observed with the NIRCam instrument, which provided imaging data in multiple spectral bands. These observations allowed researchers to identify the AGN, study its spectral and spatial properties, and investigate its interaction with the galactic environment on cosmic scales.
The results obtained by the researchers indicate that the discovered AGN is an extremely distant quasar, with a redshift of z = 7.15. They also discovered that the AGN is a supermassive black hole with an estimated mass of about 1 billion solar masses. Furthermore, the researchers observed that the AGN is located in a region of intense star formation, which suggests that star formation and AGN activity are related. These results provide valuable insights into the evolution of galaxies and supermassive black holes in the early universe and can help understand how these objects formed and grew over cosmic time.
The researchers also observed evidence of a second black hole in the same galaxy as the discovered AGN. They identified a region of emission of narrow nebula lines, which is a typical feature of a type 2 AGN, which is an AGN that is obscured by dust and gas and is therefore not visible in all spectral bands. The presence of this region suggests that there may be a second supermassive black hole in the same galaxy, which is in the process of merging with the discovered AGN black hole. This discovery is important because it provides direct evidence that the merger of supermassive black holes occurred in the early universe, which could help explain how supermassive black holes grew so quickly in the early universe.
SOURCE:
#BLACKHOLE #JAMESWEBB #UNIVERSE
2023-12-18 03:32:32
#JAMES #WEBB #DISCOVERS #MERGING #BLACK #HOLES #BEGINNING #UNIVERSE
