Latest topics
» Dave Schmidt (Meta 1 Coin) Doesn't Like Some Folks Putting Him On Their Radar! Wonder Why?
ALMA Captures Star Birth in Orion Molecular Cloud EmptyToday at 10:42 am by PurpleSkyz

» COVID19 UPDATES - WHY ARE SO MANY PEOPLE THAT HAVE “RECOVERED” FROM THE CORONAVIRUS TESTING POSITIVE AGAIN? plus MORE
ALMA Captures Star Birth in Orion Molecular Cloud EmptyToday at 10:33 am by PurpleSkyz

» MAX IGAN - Our Governments and Media Should Be Charged with Terrorism
ALMA Captures Star Birth in Orion Molecular Cloud EmptyToday at 10:17 am by PurpleSkyz

» UFO News ~ Huge Craft Streaks Through Man's Telescope plus MORE
ALMA Captures Star Birth in Orion Molecular Cloud EmptyToday at 10:15 am by PurpleSkyz

» ITNJ - Emergency Tribunal Hearing: Corona Pandemic and the Planetary Shutdown
ALMA Captures Star Birth in Orion Molecular Cloud EmptyToday at 10:08 am by PurpleSkyz

» #QTard Drama Theater - BUNKER BATTLES - Is The HIDDEN ENEMY Directly Beneath US? plus more
ALMA Captures Star Birth in Orion Molecular Cloud EmptyToday at 10:05 am by PurpleSkyz

» Sean Stone: Decoding Watchmen / 2010 Movie Symbolism & More
ALMA Captures Star Birth in Orion Molecular Cloud EmptyToday at 10:01 am by PurpleSkyz

» David Icke & London Real Break the Internet?
ALMA Captures Star Birth in Orion Molecular Cloud EmptyToday at 9:59 am by PurpleSkyz

» Positive Energy Cleanse - Meditation Music 528Hz - Detox Your Mind
ALMA Captures Star Birth in Orion Molecular Cloud EmptyToday at 9:50 am by PurpleSkyz

» ‘The Healing Power of Gardens’, The Psychological & Physiological Consolations of Nature
ALMA Captures Star Birth in Orion Molecular Cloud EmptyToday at 9:46 am by PurpleSkyz

» Robert F. Kennedy Jr: ‘Bill Gates Couldn’t Even Save Windows From Viruses’- He Needs To ‘Sit Down’
ALMA Captures Star Birth in Orion Molecular Cloud EmptyToday at 9:37 am by PurpleSkyz

» Individualism or Communism?
ALMA Captures Star Birth in Orion Molecular Cloud EmptyToday at 9:30 am by PurpleSkyz

» YOUTUBE RESTRICTS CONTENT ABOUT 5G DANGERS AFTER MULTIPLE ATTACKS ON TOWERS
ALMA Captures Star Birth in Orion Molecular Cloud EmptyToday at 9:27 am by PurpleSkyz

» Snordster - Bend Over, and Wait!
ALMA Captures Star Birth in Orion Molecular Cloud EmptyYesterday at 6:56 pm by PurpleSkyz

» Dr. Steven (struggling to stay relevant) Greer - Sharing a Meditation Moment
ALMA Captures Star Birth in Orion Molecular Cloud EmptyYesterday at 1:08 pm by PurpleSkyz

» UFO News ~ Three UFO Orbs Seen In A Triangle Formation Over Tomsk, Russia plus MORE
ALMA Captures Star Birth in Orion Molecular Cloud EmptyYesterday at 12:18 pm by PurpleSkyz

» Construction begins on Keystone XL pipeline at Montana border crossing
ALMA Captures Star Birth in Orion Molecular Cloud EmptyYesterday at 12:12 pm by PurpleSkyz

» The New World Reality & Ramifications -with Gregory Mannarino
ALMA Captures Star Birth in Orion Molecular Cloud EmptyYesterday at 12:07 pm by PurpleSkyz

» Mystery Mom Has Been Leaving Out Free Bagged Lunches ‘Made With Love’ for Anyone Who May Need Them
ALMA Captures Star Birth in Orion Molecular Cloud EmptyYesterday at 12:06 pm by PurpleSkyz

» ‘Bad news’: radiation 16 times above normal after forest fire near Chernobyl
ALMA Captures Star Birth in Orion Molecular Cloud EmptyYesterday at 12:03 pm by PurpleSkyz





***********

CLICK THE SUBSCRIBE BUTTON BELOW TO RECEIVE OUR DAILY NEWSLETTER

A 2ND EMAIL COMPLETES THE ACTIVATION PROCESS




CLICK THE PURPLE BUTTON TO VIEW OUR LATEST POSTS







You are not connected. Please login or register

OUT OF MIND » PLANET AWARENESS » ATMOSPHERIC CHANGES » ALMA Captures Star Birth in Orion Molecular Cloud

ALMA Captures Star Birth in Orion Molecular Cloud

Go down  Message [Page 1 of 1]

PurpleSkyz

PurpleSkyz
Admin
ALMA Captures Star Birth in Orion Molecular Cloud


 Apr 8, 201


Around 500 years ago, two protostars had a perilously close encounter that blasted their stellar nursery apart. The Atacama Large Millimeter/submillimeter Array (ALMA) has now examined the widely scattered debris from this event, gaining new insights into the sometimes-fierce relationship among sibling stars.
ALMA Captures Star Birth in Orion Molecular Cloud Image_4767-Star-Birth-Orion
Stellar explosions are often associated with supernovae, the powerful and catastrophic deaths of stars. But new ALMA observations of the Orion Nebula complex provide insights into explosions at the other end of the stellar life cycle — star birth. The colors in the ALMA data represent the relative Doppler shifting of the millimeter-wavelength light emitted by carbon monoxide gas. The blue color represents gas approaching at the highest speeds; the red color is from gas moving toward us more slowly. The background image includes optical and near-infrared imaging from both the Gemini South and ESO’s Very Large Telescope. The famous Trapezium Cluster of hot young stars appears towards the bottom of this image. Image credit: ALMA / ESO / NAOJ / NRAO / J. Bally / H. Drass et al.
Stars are born when a cloud of gas hundreds of times more massive than our Sun begins to collapse under its own gravity. In the densest regions, protostars ignite and begin to drift about randomly.
Over time, some stars begin to fall toward a common center of gravity, which is usually dominated by a particularly large protostar — and if the stars have a close encounter before they can escape their stellar nursery, violent interactions can occur.
About 100 000 years ago, several protostars started to form deep within the Orion Molecular Cloud 1 (OMC-1), a dense and active star factory about 1,350 light-years from Earth just behind the Orion Nebula .
Gravity began to pull them together with ever-increasing speed, until 500 years ago two of them finally clashed.
Astronomers are not sure whether they merely grazed each other or collided head-on, but either way it triggered a powerful eruption that launched other nearby protostars and hundreds of colossal streamers of gas and dust out into interstellar space at over 150 km per second. This cataclysmic interaction released as much energy as our Sun emits in 10 million years.



Fast forward 500 years, and a research team led by Prof. John Bally, an astronomer at the University of Colorado, has used ALMA to peer into the heart of OMC-1.
There the astronomers found the flung-out debris from the explosive birth of this clump of massive stars, looking like a cosmic version of fireworks with giant streamers rocketing off in all directions.
“What we see in this once calm stellar nursery is a cosmic version of a 4th of July fireworks display, with giant streamers rocketing off in all directions,” said Prof. Bally, lead author on a paper published in the Astrophysical Journal (arXiv.org preprint ).
Such explosions are expected to be relatively short-lived, the remnants like those seen by ALMA lasting only centuries.
“Though fleeting, protostellar explosions may be relatively common. By destroying their parent cloud, as we see in OMC-1, such explosions may also help to regulate the pace of star formation in these giant molecular clouds,” Prof. Bally said.
He and his colleagues observed this feature previously with the Gemini-South telescope in Chile. These earlier images, taken in the near infrared, reveal the remarkable structure of the streamers, which extend nearly a light-year from end to end.
Hints of the explosive nature of this outflow were first uncovered in 2009 with the Submillimeter Array in Hawaii.
The new ALMA data, however, provide much greater clarity, unveiling important details about the distribution and high-velocity motion of the carbon monoxide gas inside the streamers.
This helps astronomers understand the underlying force of the blast and the impact such events could have on star formation across the galaxy.
“People most often associate stellar explosions with ancient stars, like a nova eruption on the surface of a decaying star or the even more spectacular supernova death of an extremely massive star. ALMA has given us new insights into explosions on the other end of the stellar life cycle, star birth,” Prof. Bally said.
_____
John Bally et al. 2017. The ALMA View of the OMC1 Explosion in Orion. ApJ 837, 60; doi: 10.3847/1538-4357/aa5c8b


Thanks to: http://www.sci-news.com



  

Back to top  Message [Page 1 of 1]

Permissions in this forum:
You cannot reply to topics in this forum