Space researchers have found that the extreme red objects (eros) in the James Webb Space Telescope data are similar to the subaru telescope's extra-blue dust obscured galaxies (Bludogs), challenging previous assumptions and underscoring the complexity of studying the evolution of quasars.
Not all discoveries are truly new. This is the case with the Polar Red Object (ERO) found in the data of the James Webb Space Telescope (JWST). The analysis shows that they are very similar to the extra-blue dust obscuring galaxies (Bludogs) that have been reported in the Subaru telescope data.
Quasars are among the brightest objects in the universe and are powered by supermassive black holes that can reach more than a billion times the mass of the Sun. These objects are the focus of much research, but the process of their formation is still poorly understood. The prevailing theory is that they formed in galaxies, where clouds of gas and dust obscured the growing quasar until the quasar was energetic enough to blow the gas cloud away. If this is true, then it should be able to capture the brief time it takes for the quasar to break out of the clouds.
A subaru telescope photograph of a galaxy obscured by a blue excess of dust (bludog). Source**: Naoj HSC Collaborative Group.
Since the transition period is short, it is necessary to observe a large number of quasar pre-candidate galaxies and hope to be lucky enough to catch one when the quasar begins to erupt. By looking at the data from the JWST, a group of polar red objects (ERO) was identified as possible transitional quasars. But then, researchers at the Subaru telescope in Hawaii, Japan, noted, despite what they are called"Red", but the eros also have a significant blue component, similar to the extra-blue dust occlusion galaxies (bludogs) described in a report last year, discovered in the Subaru telescope's big data.
The analysis has shown that eros and bludogs are most likely of the same class of objects, but there are important differences. One possibility is that the evolutionary stage of the ero predates Bludog.
To determine the true relationship between ero, Bludog, and quasars, more candidate samples need to be collected. Larger samples will be studied by next-generation astronomical instruments, including an infrared space telescope project called GREX-plus, which is being planned in Japan.
Compilation**: scitechdaily