The Crab Nebula has a noble gas molecules do not occur in space, NASA says

With low chemical reactivity odorless, colorless , single-atom gases - helium, neon and noble gases such as argon , atoms long are known to exist in space . But despite years of searching for molecules containing them , have escaped detection .The Crab Nebula has a noble gas molecules, the researchers noble gas molecules do not occur in space.

Apparently, this was exactly what argon needed to get out of its comfort zone, the researchers found.

"The strange thing is that it is the harsh conditions in a supernova remnant that seem to be responsible for some of the argon finding a partner with hydrogen," said Paul Goldsmith of NASA's Jet Propulsion Laboratory, Pasadena, Calif.

Argon hydride is created when argon ions react with hydrogen molecules, though the two are usually found in completely different parts of a nebula.

"But we soon realised that even in the Crab Nebula, there are places where the conditions are just right for a noble gas to react and combine with other elements," Barlow said.

For these and other reasons, the researchers note the study is as much about the nebula as it is about argon.

"This is not only the first detection of a noble-gas based molecule in space, but also a new perspective on the Crab Nebula," said Göran Pilbratt, Herschel project scientist at the European Space Agency. "Herschel has directly measured the argon isotope we expect to be produced via explosive nucleosynthesis in a core-collapse supernova, refining our understanding of the origin of this supernova remnant."

Helium, argon , krypton and radon gases içerirsoy generally do not react easily with other chemical elements , and generally located on its own .

Under the right conditions , however, with other elements can form molecules . Just the right conditions to such chemical compounds do not occur only in space which astronomers to assume the earth has been studied in the laboratory .

"Great Nebula, a star patladığındayengeç only 000 years ago , was first established ," Cardiff University School of Physics and Astronomy Dr Haley Gomez said. " Only these stellar explosions would have to work out what a great way to offering only 6,500 light-years , but also relatively close astronomical terms very young , though. Past year , we work içinavrup Space Agency's Herschel Space Observatory used star exploding to show how the gas filamentlerkarmaşık network is creating large amounts of space dust . "

The Crab Nebula more measurements from the Herschel Spire ( Spectral and Photometric Imaging Receiver) instrument was used. This development and operation of Physics and astronomiokulu was carried out by Professor Matt Griffin . Molecules to rotate in space , such as the name , in a very specific light-emitting wavelength or color " emission lines " .

Full wavelength , is determined by the composition and structure of the molecule . SPIRE instruments emission lines observed by astronomers to study the chemistry of space operation.

The team went out of their way to make discoveries , but did not almost accidentally stumbled upon .

" We really concentrated and out Spire read ilefilamentlerdetoz see biztoz shining bright emission lines exactly these two interests ," Dr. Gomez says. " Teams like nobody has ever seen them before these lines , that had a hard time figuring out what I had . "

Now the Crab Nebula to create molecules such as water seems to provide exactly the right conditions . Argon is produced stellar explosions start and then as intense ionizing radiation resulting shockwaves atom or electron -lane , was energy .

These shock waves , made ??of two hydrogen atoms, the molecular hydrogen-containing cold cold yarns, led to the formation of the network . Ionized argon inert gas to form the perfect environment for the compounds are mixed with cold gas to provide .

Metrics to measure other properties of argon molecules içinekip allowed. " Bizeyengeç nebula discovered argontür water (or isotopes ) to find these types of molecules allowed to assess ," Dr. Gomez said. " Now we know that the earth is different argon see the rocks . Future measurements explosion took place 1,000 years before us what the investigation will provide . "

"What a great detective story ," Griffin of Cardiff University , and lead scientist of the SPIRE instrument arkasındaekib added. " Here Herschel - SPIRE spectrometer, high-quality data and it ekibininuzmanlıg üretenalet analizbil perseverance and vision of the man to see excellent performance , all coming together to make an interesting new discoveries . "

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