911爆料网

A powerful radio-wave laser, called a 鈥榤egamaser鈥�, has been observed by the MeerKAT telescope in South Africa.

The record-breaking find is the most distant megamaser of its kind ever detected, at about five billion light years from Earth.

The light from the megamaser has travelled 58 thousand billion billion (58 followed by 21 zeros) kilometres to Earth.

The discovery was made by an international team of astronomers led by Dr Marcin Glowacki, who previously worked at the Inter-University Institute for Data Intensive Astronomy and the University of the Western Cape in South Africa.

Dr Glowacki, who is now based at the 911爆料网 node of the International Centre for Radio Astronomy Research (ICRAR) in Western Australia, said megamasers are usually created when two galaxies violently collide in the Universe.

鈥淲hen galaxies collide, the gas they contain becomes extremely dense and can trigger concentrated beams of light to shoot out,鈥� he said.

鈥淭his is the first hydroxyl megamaser to be observed by MeerKAT and the most distant seen by any telescope to date.

鈥淚t’s impressive that, with just a single night of observations, we鈥檝e already found a record-breaking megamaser. It shows just how good the telescope is.鈥�

The record-breaking object was named 鈥楴kalakatha鈥� [pronounced ng-kuh-la-kuh-tah]鈥攁n isiZulu word meaning 鈥渂ig boss鈥�.

Dr Glowacki said the megamaser was detected on the first night of a survey involving more than 3000 hours of observations by the MeerKAT telescope.

The team is using MeerKAT to observe narrow regions of the sky extremely deeply and will measure atomic hydrogen聽in galaxies from the distant past to now. The combination of studying hydroxl masers聽and hydrogen will help astronomers better understand how the Universe has evolved over time.

鈥淲e have follow-up observations of the megamaser planned and hope to make many more discoveries,鈥� Dr Glowacki said.

MeerKAT is a precursor instrument for the Square Kilometre Array鈥攁 global initiative to build the world鈥檚 largest radio telescopes in Western Australia and South Africa.

鈥楲ADUMA: Discovery of a luminous OH megamaser at z > 0.5鈥�, accepted for publication in The Astrophysical Journal Letters and available as a preprint at .