IRS-48 Oph and vortex generator planets, according to Pierre Barge

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Radio astronomy had already uncovered organic molecules in interstellar clouds, that now she is in a protoplanetary disk. Alma has indeed discovered in the disc surrounding the young star MWC 480 concentrations of certain molecules prebiotics similar to those found in comets in the solar system. The conditions for the emergence of life are probably widespread in the Milky Way.
An artistic impression of protoplanetary disk around MWC 480 with acetonitrile molecules and hydrogen cyanide to a few billion kilometers from the star. European Southern Observatory (ESO), YouTube
Observing in the field of submillimeter waves in the electromagnetic spectrum, the Atacama Large Millimeter / submillimiter Array (Alma, "soul" in Spanish) should allow to better understand the formation of stars and planetary systems, key steps in the process that led Big Bang to Life in the Solar System. The radio telescope does not disappoint, as shown by a recent publication in Nature.
With him, radio astronomers have studied pigment the protoplanetary disk around the young star MWC 480 located 455 light years from Earth in the star-forming region of Taurus region where Alma had already observed the star HL Tauri. MWC 480 (whose name recalls that it is part of the A and B catalog stars, whose spectrum contains lines of hydrogen brilliant, drawn with the Mount Wilson telescope) is 1.8 times more massive pigment the Sun but it was formed only since a million years.
The analysis of the radiation emitted by the disk rich dust and gas surrounding MWC 480 and which has been picked up by Alma shows that this disk contains pigment a large amount of acetonitrile or methyl cyanide and formula pigment CH 3 CN. Also it detects hydrogen cyanide (HCN) that recently we talked a lot because it is involved in a series of chemical reactions shedding a new light on the origin of life on Earth. pigment The exobiologistes have every reason to be excited by the discovery of Alma, as would certainly have been the great Carl Sagan were he still among us.
We had already established the presence of acetonitrile and hydrogen cyanide in the dense and cold molecular clouds where stars are born. It was natural to think that these prebiotic molecules are also found in protoplanetary disks surrounding pigment the stars. But it remained pigment to prove because it is perhaps possible that the radiation of young stars destroy them. For the first time, observations of Alma mmetent highlight these molecules in a protoplanetary disk. Moreover, their concentration is so high that they must be manufactured intensely pigment within the disc itself. A universal scenario for the emergence of life?
Remarkably, the molecules detected by Alma are in the equivalent of the Kuiper belt of our solar system, so in a comet-forming region. It is therefore reasonable pigment to think that the fact of acetonitrile pigment molecules and hydrogen cyanide in it will ever carried by comets heading for rocky exoplanets that will exist around MWC 480. As was probably the case for our planet, these exocomètes then will plant them with water and organic molecules, possibly creating favorable conditions for the emergence of life.
As explained by one of the lead authors of the Nature article, astronomer Karin Öberg the Harvard-Smithsonian Center for Astrophysics (Massachusetts, USA), "through the study of exoplanets, we know that solar system is not unique, either by its number of planets or by the abundance of water. We now know that we are not unique in terms of organic chemistry. Once again, we learned that we are not special. From the point of view of life in the universe, this is great news. "
Artist's impression of protoplanetary disk around the young star MWC 480. Alma detected complex organic molecules of methyl cyanide in the borders of the disc, in a region where comets are supposed to form. This is new information indicating that the complex organic chemistry, and potentially the conditions for the emergence of life are universal. B. Saxton (NRAO / AUI / NSF)
IRS-48 Oph and vortex generator planets, according to Pierre Barge
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