Astronomers observe interiors of ancient galaxies

Berlin (IANS/EFE) Data obtained using the European Southern Observatory’s ALMA telescope in Chile has given astronomers their first glimpse at the interior of distant galaxies, the ESO said.

Observations from the Atacama Large Millimeter/submillimeter Array (ALMA) allowed astronomers to start to see how the first galaxies arose and how they cleared the cosmic fog during the era of reionization, according to an article in the Monthly Notices of the Royal Astronomical Society.

“This is the most distant detection ever of this kind of emission from a ‘normal’ galaxy, seen less than 1 billion years after the Big Bang,” study co-author Andrea Ferrara said.

“For the first time, we are seeing early galaxies not merely as tiny blobs, but as objects with internal structure.”

A team of astronomers led by Cambridge University’s Roberto Maiolino trained the ALMA array on galaxies that were known to be seen only about 800 million years after the Big Bang, the explosion that scientists believe gave birth to the universe.

The astronomers were not looking for the light from stars, but instead for the faint glow of ionized carbon coming from the clouds of gas from which the stars were forming.

“They concentrated on rather less dramatic, but much more common, galaxies that reionized the Universe and went on to turn into the bulk of the galaxies that we see around us now,” the ESO said.

The telescope was able to detect a faint but clear carbon signal of intense brightness in a galaxy designated as BDF2399.

ALMA is an international partnership of the ESO, the US, Japan, Canada, Taiwan and South Korea, in cooperation with Chile.

ALMA, the largest astronomical project in existence, sits on the Chajnantor plateau, 5,000 metres above sea level.

Leave a Reply

Please enter your comment!

The opinions, views, and thoughts expressed by the readers and those providing comments are theirs alone and do not reflect the opinions of or any employee thereof. is not responsible for the accuracy of any of the information supplied by the readers. Responsibility for the content of comments belongs to the commenter alone.  

We request the readers to refrain from posting defamatory, inflammatory comments and not indulge in personal attacks. However, it is obligatory on the part of to provide the IP address and other details of senders of such comments to the concerned authorities upon their request.

Hence we request all our readers to help us to delete comments that do not follow these guidelines by informing us at Lets work together to keep the comments clean and worthful, thereby make a difference in the community.

Please enter your name here