As per the astronomers, they have become aware due to the massive radio source which is present at the center of the galaxy and after sometime they have realized that it was a Supermassive Black Hole (SMBH), and it has been named as Sagittarius A. A recent survey which was done by NASA’s Chandra X-ray Observatory, it has discovered that there is evidence for hundreds or even thousands of black holes which are located in the same area of the Milky Way.
A team which was consisted of astronomers have recently detected a number of the mystery objects that have appeared to be moving around the SMBH at Galactic Center. It was done by using 12 years of data which are taken from the W.M. Keck Observatory in Hawaii, and the astronomers have found that the objects have looked like dust clouds which are behaved like stars.
This research was conducted with the help of collaboration between Randy Campbell at the W.M. Keck Observatory and the members of the Galactic Center Group of UCLA (Anna Ciurlo, Andrea Ghez, and Mark Morris ) and Rainer Schoedel who is from the Instituto de Astrofisica de Andalucia (CSIC) in Granada, Spain. The results of the study were getting published and were presented at the 232nd American Astronomical Society Meeting which was held during the press conference which was titled “The Milky Way and Active Galactic Nuclei.
The researchers have made this discovery by using 12 years of spectroscopic measurements which were obtained by the Keck Observatory’s OH-Suppressing Infrared Imaging Spectrograph (OSIRIS). These type of objects are designed as G3, G4, and G5 and are found when it is getting examined and the gas dynamic of the center of our galaxy and they were distinguished from the background emissions due to the movements.
To see these objects through obscuring envelope of dust and gas, Campbell has developed a tool which is known as OSIRIS-Volume Display.