Astronomers get the deepest and highest image of Galaxy Cluster’s resolution Abell 2255, observing an unspecified radio-emitting tender.
Abell 2255 a cluster consisting between 300 and 500 constituent galaxies, which are mostly together. It is approximately 800 million light-theal years from the ground and composed about 16.3 million light-aven. The team behind this research is interested in so-called “Radio Galaxies“In this cluster.
Radio galaxies are the galaxies that are governed by feeding SuperMassive Black Holes launching loud jets in the object at speeds. This new investigation by Abell 2255 may reveal how radio galaxies are revealed and how supermassive black holes-launched jets talk to galaxies, a space called Intergalactic medium.
“These results open the passage of new views for the study not only on radio galaxies but also on Galaxy Clusters,” a National Institute for National Institute for the National Institute of Asstrophysics (INAF).
Chase radio tails
The team got their abell 2255 data using European Low frequency array . With 56 hours observing a radio frequency at 144 MHz, researchers earn deep images of an angular resolution of up to 0.3 arcsecond.
It reveals the long filamentary structures to be boiled between 260,000 and 360,000 light years. Longer than 3 times the width of The Milky Way. The thickness of these filaments, however, not less than the tenth of our galaxy.
The team behind this research prompts that these filaments are from within the radio galaxies in Abell 2255 and dragged into a turbulent mill inside the galaxy cluster. Filaments finally mix intergalactic medium gas and abell dust 2255.
One of the radio galaxies targeted by the team is the original Tailed Radio Galaxy, with a tail tail and many filaments, parts that have never been observed in such detail.
The new lofar images have also revealed unexpected details within Abell 2255, including GOLYAR forms of radio trees past.
“Our main purpose is to use Lofar-VLBI to identify the possible filaments of radio galaxies of 2255, to study their type of morphological exterfighomers, as often as the projects of the ska, and offered the projects in the project, and offered Valuable properties of hot gas in clusters and particles acceleration. “
The team’s research is a greater investigation that is possible with new developments in calibration methods. to Lofar-VLBI data.
“We calibrated 56 hours of observation, divided by nightly sessions about 8 hours each.” Of course, calibration of data and getting quality images gained a lot of tests and mistakes. To fully process one night with all sources, it is about a month of average. “
Team research has been published on June 10 in the Journal Astronomy & Astrophysics.
