ASIAA: Complex Organic Molecules Found on "Space Hamburger"

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bystander
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ASIAA: Complex Organic Molecules Found on "Space Hamburger"

Postby bystander » Thu Jun 29, 2017 3:11 pm

Complex Organic Molecules Found on "Space Hamburger"
Academia Sinica Institute of Astronomy and Astrophysics (ASIAA) | 2017 Jun 29

Prebiotic Atmosphere Discovered on Accretion Disk of Baby Star

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An international research team ... has used the Atacama Large Millimeter/submillimeter Array (ALMA) to detect complex organic molecules for the first time in the atmosphere of an accretion disk around a very young protostar. These molecules play a crucial role in producing the rich organic chemistry needed for life. The discovery suggests that the building blocks of life are produced in such disks at the very beginning of star formation and that they are available to be incorporated into planets that form in the disk subsequently. It could help us understand how life came to be on Earth. ...

Herbig-Haro (HH) 212 is a nearby protostellar system in Orion at a distance of about 1,300 light-years. The central protostar is very young, with an estimated age of only 40,000 years -- about 1/100,000th the age of our Sun -- and a mass of only 0.2 solar mass. It drives a powerful bipolar jet and thus must accrete material efficiently. Indeed, an accretion disk is seen feeding the protostar. The disk is nearly edge-on and has a radius of about 60 astronomical units (AU), or 60 times the average Earth-Sun distance. Interestingly, it shows a prominent equatorial dark lane sandwiched between two brighter features, looking like a "space hamburger."

The research team's ALMA observations have clearly detected an atmosphere of complex organic molecules above and below the disk. These include methanol (CH3OH), deuterated methanol (CH2DOH), methanethiol (CH3SH), and formamide (NH2CHO). These molecules have been proposed to be the precursors for producing biomolecules such as amino acids and sugars. ...

Formation and Atmosphere of Complex Organic Molecules of the HH 212 Protostellar Disk - Chin-Fee Lee et al
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Re: ASIAA: Complex Organic Molecules Found on "Space Hamburger"

Postby neufer » Thu Jun 29, 2017 3:25 pm

.
"Two all-beef patties, special sauce*, lettuce, cheese, pickles, onions – on a sesame seed bun."

*a variant of Thousand Island dressing
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Re: ASIAA: Complex Organic Molecules Found on "Space Hamburger"

Postby starsurfer » Mon Jul 03, 2017 5:12 pm

neufer wrote:.
"Two all-beef patties, special sauce*, lettuce, cheese, pickles, onions – on a sesame seed bun."

*a variant of Thousand Island dressing

Don't forget the extra hot chilli sauce! (Seriously this forum needs a flaming chilli or cactus smilie)


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