ALMA Reveals Inner Web of Stellar Nursery
This spectacular and unusual image shows part of the famous Orion Nebula, a star formation region lying about 1350 light-years from Earth. It combines a mosaic of millimetre-wavelength images from the Atacama Large Millimeter/submillimeter Array (ALMA) and the IRAM 30-metre telescope, shown in red, with a more familiar infrared view from the HAWK-Iinstrument on ESO’s Very Large Telescope, shown in blue. The group of bright blue-white stars at the upper-left is the Trapezium Cluster — made up of hot young stars that are only a few million years old.
Credit: ESO/H. Drass/ALMA (ESO/NAOJ/NRAO)/A. Hacar
The scientists who gathered the data from which this image was created were studying these filaments to learn more about their structure and make-up. They used ALMA to look for signatures of diazenylium gas, which makes up part of these structures. Through doing this study, the team managed to identify a network of 55 filaments.
New data from the Atacama Large Millimeter/submillimeter Array (ALMA) and other telescopes have been used to create a stunning image showing a web of filaments in the Orion Nebula. These features appear red-hot and fiery, but in reality are so cold that astronomers must use telescopes like ALMA to observe them
The Orion Nebula is the nearest region of massive star formation to Earth, and is therefore studied in great detail by astronomers seeking to better understand how stars form and evolve in their first few million years. ESO’s telescopes have observed this interesting region multiple times, and you can learn more about previous discoveries here, here, and here.
This pan sequence shows part of the famous Orion Nebula star formation region. At the start we see the bright Trapezium Cluster of hot young stars and then see the strange pattern of narrow filaments of cold gas, which appear red in this view from ALMA. The background blue image, which shows the stars and other features, comes from the HAWK-I camera on ESO’s Very Large Telescope.
Credit: ESO/H. Drass/A. Hacar/ALMA (ESO/NAOJ/NRAO). Music: Johan B. Monell
Richard Hook
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