MessageToEagle.com -
Astronomers have for several years considered star cluster M 67 located 2700 light years away, as a possible origin of our Sun.
This leading and commonly accepted theory must be now revisited.
Barbara Pichardo Ph.D. and her colleagues, Edmundo Moreno, Christine Allen, Luigi R. Bedin, Andrea Bellini, Luca Pasquini of the
National Autonomous University of Mexico, Mexico City Mexico conducted detailed computer simulations and searched for the Sun and
M 67 close encounters in the past.
Our Sun does not originate from M 67. Credit: MessageToEagle.com
Considering the resemblance in age, metallicity, and distance from the Galactic center, of the old open cluster M 67 and the Sun,
scientists explored the possibility that the Sun was once a member of M 67.
The analysis of these close encounters shows that the corresponding relative velocity between the Sun and M 67 is larger than 20 km/s.
This velocity is too high; a three-body encounter within M 67, with the Sun being one of the three bodies, and
giving this ejection velocity to the Sun, would destroy an initial circumstellar disk around the Sun, or disperse its already formed planets.
The scientists say that the Sun was not ejected by a three-body encounter in M 67. By analyzing a possible encounter of M 67 with a giant
molecular cloud, they find a very low probability, much less than 10-7, that the Sun was ejected from M 67 by such an encounter.
Additionally, the high values of the relative velocity also exclude the possibility that the Sun and M 67 were born in the same molecular cloud.
Messier 67
The star cluster Messier 67 is an old (about 4 billion years) open star cluster located in our galaxy.
The image above is a composite of short exposures taken with the MMT "Megacam" camera. The camera is a 268 megapixel camera,
and covers an area about the size of the full moon. This image is cropped to show the center of the cluster, and is
roughly 15 arcminutes on a side. The reddish stars are red giants, stars reaching the ends of their lives and swelling
from about the size of the sun into monsters that would engulf the Earth. Credits Dr. Kurtis A. Williams, Astrophotography
"We have illustrated the effect of the spiral arms on the Galactic orbits of the Sun and M 67. Modeling the spiral arms as transient features might prove to
be compatible with the Sun-M 67 common-origin hypothesis.
Our dynamical results convincingly demonstrate that M67 could not have been the birth cluster of our Solar System," Barbara Pichardo says.
Written By MessageToEagle.com based on material provided by Cornell University Library
@ MessageToEagle.com
Follow MessageToEagle.com for the latest news on Facebook
and Twitter !
Recommend this article:
Subscribe To Our News!
Grab the latest RSS feeds right to your reader, desktop or mobile phone.
Astronomical Mystery: Giant Alien Planet Orbiting Three Suns
Binary stars are well-known and even trinary systems may be common but most of them
are crowded together and thus, difficult to find and study. Additionally, it has long been considered they are inhospitable to planets...
Unusual Sounds From Space Reported Worldwide - What Are They?
For almost a year now people from different countries have reported hearing strange sound from the sky. Now scientists propose that what people are
hearing is only a small fraction of the actual power of these sounds!
What are these sounds? What is causing them? Are they in anyway related to our Sun and the biggest solar flares, do they come from Earth's inner core
or can they be attributed to an unknown an astronomical phenomenon? Are they in anyway dangerous to our planet?
Unknown Force "Intelligently" Put Together Miranda Moon - with video
What could melt this moon in this extremely cold region of the solar system?
Voyager 2 passed Miranda’s strange world at a distance of only 3,000 kilometers (1,800 miles) and
sent back to Earth very detailed images of its "tortured" surface.
Nothing like them has been seen anywhere else in the solar system! Did a type III civilization conduct some "experiments" on Miranda?
Mysterious Jelly-Like Blue Spheres That Fell From The Sky Are Not Of Meteorological Origin
Residents in United Kingdom were baffled when they suddenly saw strange jelly-like blue spheres falling from they sky.
Steve Hornsby, a former aircraft engineer from Bournemouth found these strange spheres in his garden, last Thursday.
"The sky went a really dark yellow colour."
MessageToEagle.com -
Astronomers have for several years considered star cluster M 67 located 2700 light years away, as a possible origin of our Sun.
