Tomasz Nowakowski is a writer for the website Phys.org.
The XMM-Newton EPIC image of J0439+1634 was combined from three different images in the 0.2–0.5 keV and 2–10 keV X-ray bands. The credit was given to Yang et al.
The most distant quasar has been observed using the XMM-Newton spacecraft. The results of the study were published on the arXiv pre-print server.
Quasars, or quasi-stellar objects, are extremely Luminous active galactic nuclei containing supermassive central black holes with accretion disks. The redshifts are measured from the strong lines that dominate the visible and ultraviolet spectrum.
Astronomers are interested in studying high-redshift quasars, as they are the most distant compact objects in the observable universe. The mass of black holes can be estimated by using the quasar's stele. High-redshift quasars could be used to investigate the early universe.
The first known high-redshift quasar was at a redshift of 6.52. It is an excellent target for the study of X-ray emission from a reionization-era QSO that is less luminous.
The broad absorption line is also called a quasar. BAL quasars are thought to be weak in X-ray observations of low-redshift quasars, because they are absorbed in the soft X-ray band. Due to their faint X-ray emission, no studies of high-redshift BAL QSOs have been carried out.
A team of researchers from the University of Arizona decided to use the European panolithography camera onboard the XMM-Newton. They looked at the X-ray properties of the source and compared them to other quasar populations.
It was not detected in the 0.2–0.5 keV band by the three cameras, but it was identified as an X-ray source with XMM-Newton in the 0.5–10 keV band. The quasar has a flat photon index of approximately 1.45.
The quasar is underluminous by a factor of 18 in X-rays, which is consistent with the behavior of QS BALOs observed at lower. The first time that an X-ray weak BAL quasar at a redshift of above 6.0 has been observed was by the astronomer.
A high intrinsic column density of more than 200 sextillion cm-2 is suggested by the absorbed power-law model. According to the researchers, the first quasar with X-ray spectroscopy in the reionization epoch is J0439+1634. They think that the source could be a weak quasar.
More information about the X-ray Weak, Broad Absorption Line Quasar at Z is available.
The Science X Network will be launched in 2021.
The distant quasar was explored in X-rays on December 29 and December 31.
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