New quasar discovered by astronomers
https://phys.org/news/2017-09-quasar-astronomers.html
A team of astronomers led by Jacob M. Robertson of the Austin Peay State University in Clarksville, Tennessee has detected
a new quasi-stellar object (QSO). They found the new quasar, designated SDSS J022155.26-064916.6, as a result of an analysis
of available spectroscopic data. The finding is reported in a paper published Sept. 10 on the arXiv pre-print server.
To date, astronomers have identified more than 200,000 quasars, most of them from the Sloan Digital Sky Survey (SDSS). SDSS
is an imaging and spectroscopic redshift survey, which utilizes the 2.5-m wide-angle optical telescope at the Apache Point
Observatory (APO) located in New Mexico. It is regarded as one of the most successful astronomical surveys, having produced
the most detailed three-dimensional maps of the universe ever made.
Now, a group of researchers led by Robertson reports the discovery of another quasar from the SDSS data. They found that the
object known as SDSS J022155.26-064916.6, which was initially imaged by SDSS and classified as a star with a cosmic ray hit,
is in fact a quasar at redshift of about 0.8.
[1709.03166] Discovery of a New Quasar: SDSS J022155.26-064916.6
https://arxiv.org/abs/1709.03166
