Tue, Feb 28, 2017 | updated 11:01 AM IST

In a first, oxygen accurately measured in galaxy far, far away

Updated: Aug 04, 2016 13:33 IST

Washington D.C., Aug 4 (ANI): A team of astronomers has made the first accurate measurement of the abundance of oxygen in a distant galaxy.

This UCLA research is based on data collected at the W. M. Keck Observatory on Mauna Kea, in Hawaii.

"This is by far the most distant galaxy for which the oxygen abundance has actually been measured," said co-author Alice Shapley. "We're looking back in time at this galaxy as it appeared 12 billion years ago."

Knowing the abundance of oxygen in the galaxy called COSMOS-1908 is an important stepping stone toward allowing astronomers to better understand the population of faint, distant galaxies observed when the universe was only a few billion years old and galaxy evolution, Shapley said.

COSMOS-1908, contains approximately 1 billion stars. In contrast, the Milky Way contains approximately 100 billion stars; some galaxies in the universe contain many more, while others contain many fewer. Furthermore, COSMOS-1908 contains approximately only 20 percent the abundance of oxygen that is observed in the sun.

Typically, astronomers rely on extremely indirect and imprecise techniques for estimating oxygen abundance for the vast majority of distant galaxies. But in this case, researchers used a direct measurement, said lead author Ryan Sanders.

"Close galaxies are much brighter, and we have a very good method of determining the amount of oxygen in nearby galaxies," Sanders said. In faint, distant galaxies, the task is dramatically more difficult, but COSMOS-1908 was one case for which Sanders was able to apply the "robust" method commonly applied to nearby galaxies. "We hope this will be the first of many," he said.

"Ryan's discovery shows we can measure the oxygen and compare these observations with models of how galaxies form and what their history of star formation is," Shapley said.

The study is published online in the Astrophysical Journal Letters. (ANI)

New clues found for nuclear waste cleanup

Updated: Feb 24, 2017 09:35 IST

Washington D.C. (USA), Feb. 24 (ANI): According to a study, the research being done on the chemistry of technetium-99 has boosted the understanding of the challenging nuclear waste and can lead to better cleanup methods.

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Washington D.C. [US], Feb. 24 (ANI): US researchers have suggested that specially trained dogs can be used to find wide-ranging species that are often threatened, sepecially cheetah in a region of Western Zambia.

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Washington D.C. [USA], Feb. 23(ANI): NASA's Spitzer Space Telescope has revealed the first known system of seven Earth-size planets around a single star. Three of these planets are firmly located in the habitable zone, the area around the parent star where a rocky planet is most likely to have liquid water.

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Noida (Uttar Pradesh) [India], Feb.22 (ANI): Germany's Alexander von Humboldt (AvH) Foundation has handed over equipment worth € 20, 000 to Amity University for accelerating research initiatives.

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Washington D.C. (USA), Feb 21 (ANI): The world's first battery to use only hydronium ions as the charge carrier has been been developed by scientists.

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Washington D.C. (USA), Feb. 21 (ANI): According to a new study, Carnegie's Stephen Elardo and Anat Shahar shows that interactions between iron and nickel under the extreme pressures and temperatures similar to a planetary interior can help scientists understand the period in our Solar System's youth when planets were forming and their cores were created.

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Washington D.C. [USA], Feb. 18 (ANI): To boost breeding of endangered poultry breeds, Briton researchers have come up with gene-editing techniques for the rare breeds to use them as surrogates that cannot produce their own chicks.

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Meet 'Bernardbowen'- the new minor planet

Updated: Feb 18, 2017 07:00 IST

Washington D.C. [USA], Feb. 18 (ANI): In a major development, a team of scientists have officially named a minor planet as 'Bernardbowen' that sits in the asteroid belt between Mars and Jupiter.

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New York [USA], Feb. 17 (ANI): NASA has called on the world to help it in the search for the new ninth planet, as anyone from a kindergartener to a 95-year-old, can participate in their new project to find the not-yet-discovered celestial body.

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Washington D.C. [USA], Feb. 9 (ANI): To cut down the number of traffic fatalities, drive less!

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Washington D.C. [USA], Feb. 8 (ANI): According to an international team of astronomers led by researchers from University Of Cambridge, the Magellanic Clouds, the two largest satellite galaxies of the Milky Way, appear to be connected by a bridge stretching across 43,000 light years.

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Washington D.C. [USA], Jan. 25 (ANI): A team of researchers have discovered prehistoric wolf-sized otter fossils with a large head and a powerful jaw, weighing around 100 pounds, in China's Yunnan province.

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Washington D.C. [USA], Jan. 25 (ANI): A study finds that early identification of hearing loss in newborn due to a disease or physical abnormality by birth may help them in better language outcomes as they grow.

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Chennai [India], Jan.14 (ANI-Businesswire India): While "Jallikattu" seems to be the trending topic of discussion in Tamil Nadu at the moment, a silent revolution envisioned by youth icon and late Former President of India, Dr. APJ Abdul Kalam has quietly gained momentum. Ignite-India is a nation-wide innovation platform for student innovators and young entrepreneurs in high schools and colleges. Founded by International swimmer Agnishwar Jayaprakash in 2014, the organization has designed & hosted 96 Regional Innovation Conferences and 3 National Innovation Conferences across 36 cities in India where students competed to showcased their innovative creations. These innovations were judged based on the practicality, creativity & sustainability by technical experts from diverse fields.

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New Delhi [India], Jan. 13 (ANI): New computer simulations have shown that tiny droplets of sulphuric acid resulted in long-lasting cooling, which was a likely contributor to the death of land-living dinosaurs.

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New human organ in digestive system discovered

Updated: Jan 05, 2017 06:27 IST

New Delhi [India], Jan. 5 (ANI): Scientists have discovered what they are calling a new human organ that exists in the digestive system.

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Washington D.C. [USA], January 4 (ANI): Songbirds divorce, pack up and leave and miss their best chances for successful reproduction, courtesy suburban development.

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How do conch shells have such huge variety?

Updated: Jan 04, 2017 05:52 IST

Washington D.C. [USA], January 4 (ANI): Conch shells and its varied shapes and size have always been something that has captivated the eyes of collectors.

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Washington D.C. [USA], Dec. 31 (ANI): A new study finds that despite English being considered the common language of global science, over 30 percent of new scientific reports are published other languages due to which many major findings have been overlooked.

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