Astronomers Witness a Star Being Born
Astronomers caught a glimpse of a future star just as it is being born out of the surrounding gas and dust, in a star-forming region similar to the one pictured above. (Photo: NASA, ESA)
(PhysOrg.com) -- Astronomers have glimpsed what could be the youngest known star at the very moment it is being born. Not yet fully developed into a true star, the object is in the earliest stages of star formation and has just begun pulling in matter from a surrounding envelope of gas and dust, according to a new study that appears in the current issue of the Astrophysical Journal.
The study's authors—who include astronomers from Yale University, the Harvard-Smithsonian Center for Astrophysics and the Max Planck Institute for Astronomy in Germany—found the object using the Submillimeter Array in Hawaii and the Spitzer Space Telescope. Known as L1448-IRS2E, it's located in the Perseus star-forming region, about 800 light years away within our Milky Way galaxy.
Stars form out of large, cold, dense regions of gas and dust called molecular clouds, which exist throughout the galaxy. Astronomers think L1448-IRS2E is in between the prestellar phase, when a particularly dense region of a molecular cloud first begins to clump together, and the protostar phase, when gravity has pulled enough material together to form a dense, hot core out of the surrounding envelope.
"It's very difficult to detect objects in this phase of star formation, because they are very short-lived and they emit very little light," said Xuepeng Chen, a postdoctoral associate at Yale and lead author of the paper. The team detected the faint light emitted by the dust surrounding the object.
Most protostars are between one to 10 times as luminous as the Sun, with large dust envelopes that glow at infrared wavelengths. Because L1448-IRS2E is less than one tenth as luminous as the Sun, the team believes the object is too dim to be considered a true protostar. Yet they also discovered that the object is ejecting streams of high-velocity gas from its center, confirming that some sort of preliminary mass has already formed and the object has developed beyond the prestellar phase. This kind of outflow is seen in protostars (as a result of the magnetic field surrounding the forming star), but has not been seen at such an early stage until now.
The team hopes to use the new Herchel space telescope, launched last May, to look for more of these objects caught between the earliest stages of star formation so they can better understand how stars grow and evolve. "Stars are defined by their mass, but we still don't know at what stage of the formation process a star acquires most of its mass," said Héctor Arce, assistant professor of astronomy at Yale and an author of the paper. "This is one of the big questions driving our work."
More information: DOI: 10.1088/0004-637X/715/2/1344
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Yale University
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Jun 17, 2010
Rank: 1.4 / 5 (20)
Jun 17, 2010
Rank: 5 / 5 (6)
Not sure if i am reading this right, are you trying to say someone made the stars? "created"
Jun 17, 2010
Rank: 5 / 5 (6)
Definitions of create on the Web: bring into existence
Let's move on to something more worthy of our debate, like how we can squeeze some cold gas together here on earth and birth; create, our own stars.
Jun 18, 2010
Rank: 3.3 / 5 (7)
Jun 18, 2010
Rank: 1.2 / 5 (17)
Take the growth of a fungus for instance. All we see is something appearing on a damp wall and soon we can identify it as a fungus. We can even go and plant our own fungus on a damp patch on the same wall and make it grow too.
But God says in His word - in Leviticus [or Deuteronomy, not sure which, too lazy to look it up]-when giving instructions to Moses as to how to deal with it, that it is HE that makes it grow, for whatever reason.
In a similar fashion, God made ALL the stars and in fact in Isaiah it states that he named them all - each and everyone in all the 100s of billions of galaxies.
Now since we are lookin back in time it is quite possible that we'll see some of them being formed at the time of creation. But since we cannot detect God doing it, it'll appear to be some natural occurrence to us.
So,I'm not fazed by this news
Jun 18, 2010
Rank: 4.5 / 5 (8)
Ummmm, the article clearly states that the forming protostar which you think is being "created by a god" is only 400 light-years away. So are you contending that the entire universe was created only 400 years ago?
Jun 18, 2010
Rank: 4.3 / 5 (6)
Jun 18, 2010
Rank: 5 / 5 (6)
Lol... thats some funny stuff for a science website. "It is because it is", why didn't i think of that.
Jun 18, 2010
Rank: 4.5 / 5 (8)
Jun 18, 2010
Rank: 5 / 5 (7)
Jun 18, 2010
Rank: 4.4 / 5 (8)
More than a connection with a "God" figure, humanity's curiosity and ingenuity lead us to construct these observational instruments.
Stop undermining the effort and sacrifice people make in these cutting edge observations by dragging in your reverence to YOUR God. I can't imagine the tedious man hours needed to find these gems of the cosmos.
Hard work and thirst for knowledge will bring us to understanding the cosmos, nothing else.
Jun 18, 2010
Rank: 3.5 / 5 (8)
Yes! The Flying Spaghetti Monster created the heavens using his Magic Pixie Dust (tm). BTW, he also created the bible to confound the foolish.
All Hail the Great Pasta!
Jun 18, 2010
Rank: 2.6 / 5 (5)
Jun 18, 2010
Rank: 2 / 5 (4)
Beer Volcano? You have a BEER VOLCANO?????? #()$&#$ WHERE????
Jun 18, 2010
Rank: 3.7 / 5 (3)
Jun 18, 2010
Rank: 3.7 / 5 (3)
Once you're capable of applying the logic you use to disregard other religions to your own religion, then we'll have something to talk about.
In the mean time, leave the science to objective people.
Jun 18, 2010
Rank: 2.7 / 5 (7)
The Pastafarian belief of Heaven contains a beer volcano and a stripper factory.[27] The Pastafarian Hell is similar, except that the beer is stale and the strippers have sexually transmitted diseases.[29]
Jun 18, 2010
Rank: 4.5 / 5 (8)
So God makes the fungus grow by "faking" normal biological processes; he simulates random chance when forcing the dice to fall a certain way; he pretends that laws of physics exist when he actively supports cell phone calls; and he's actually the one who 'cured' someone when a doctor removes a tumor. The trouble with this stance is that it is indistinguishable from a universe where there is no god and things actually do happen according to physical laws. In that case, a god who does hands-on is basically useless -- praying to him is a waste of time since he'll let things happen according to how the dice would fall anyway, and worshipping him is a waste of time since he does what he does according to the laws he's simulating, not according to your entreaties. It's turtles all the way down.
Jun 18, 2010
Rank: 3.7 / 5 (3)
Jun 18, 2010
Rank: 4.3 / 5 (6)
Jun 19, 2010
Rank: 3 / 5 (2)
But then, it would make our total human existence the equivalent of coming to be "fleas on an elephants butt".
Jun 19, 2010
Rank: 5 / 5 (1)
Jun 19, 2010
Rank: 3.7 / 5 (3)
Jun 19, 2010
Rank: 1 / 5 (4)
How old was the fellow when he stopped observing and started writing?
Jun 20, 2010
Rank: 1.4 / 5 (9)
Is there anyone here who totally, completely KNOWS what gravity is?
Does anyone have the total knowledge about what it is that makes magnetism what it is? And just what IS magnetism while we're at it?
For that matter, what is an electron, or a proton, or a neutron and what really constitutes "charge"?
Perhaps you might want to reconsider your great and profound knowledge of science and humble yourselves before declaring you know it all.
Jun 20, 2010
Rank: 5 / 5 (1)
In 5 years you'll still think whoever the current president is might have been sent by the devil and as such you'll be trying to wage war against your fellow man because something happened somewhere else that you aren't comfortable with when sitting in church.
I can only hope that the rapture is real, we need a world free of christians, and that'd be the fastest way to get rid of you all.
Jun 20, 2010
Rank: 5 / 5 (3)
"Now since we are lookin back in time it is quite possible that we'll see some of them being formed at the time of creation."
Stars are forming even now, and will be forming in the future. The creation has not ended yet, and as long as the universe exist, it will not end. Because creation and the universe are the same - and we are meant not to study only the created universe, but the process of creation itself...
Jun 20, 2010
Rank: 1 / 5 (5)
I agree. We live in a very strange and dangerous period of time.
Politicians have learned to use grant funds to produce consensus opinions and consensus opinions are worshiped as "mainstream" and therefore valid.
This is a very strange and dangerous period of time.
With kind regards,
Oliver K. Manuel
Jun 20, 2010
Rank: not rated yet
There aren't many who claim to know it all. Many of us are agnostic. Some of us to different degrees than others. Like all belief systems, it has a lot of gray areas...
Jun 20, 2010
Rank: 5 / 5 (3)
Some of us are actively seeking answers, some are relying on some old books of myths and fables, with a smattering of possibly historical significance.
I don't *know it all*, but I *will* attempt to understand the universe using knowledge gleaned, and lessons learned, from the scientific method.
Jun 20, 2010
Rank: 1 / 5 (6)
You are right, Fred Jose.
Why do like charges repel?
Why do unlike charges attract?
Why do electrons form pairs in atomic orbitals?
Why do protons form pairs in inside the nucleus?
Why do neutrons repel each other (Neutron repulsion)?
Why do neutrons and protons attract each other?
Why do neutrons form pairs in inside the nucleus?
Why does the Sun discard 50,000 billion metric tons of H each year, if the Sun is powered by H-fusion?
With kind regards,
Oliver K. Manuel
Emeritus Professor
Nuclear & Space Sciences
Former NASA Principal Investigator for Apollo
Lao Tzu: "To know that you do not know is best,
To pretend to know what you do not know is a disease."
Jun 21, 2010
Rank: 4.8 / 5 (6)
Mass attraction.Mass attraction.Why does methane get blasted out in a tank explosion? Exactly, your forces and vectoring is entirely off.
I thought you knew something about physics.
Jun 21, 2010
Rank: 5 / 5 (3)
Jun 21, 2010
Rank: 5 / 5 (1)
Hey Fred, last I checked we're saying we don't know what caused certain things. You were the one claiming with absolute certainty that a being, that somehopw doesn't have a creator went forth and created everything using incantations and magic.
Who's claiming total knowledge? You are.
Who isn't? Science.
Jun 21, 2010
Rank: 5 / 5 (3)
We're not ANTI-GOD. We're ANTI-CREATIONIST. Please try to conceptualize the difference. Some of us are atheists, some are not. But we're all irritated by theists who come on and act like they have all the answers, then make dumb-ass comments like that "humble yourselves" bit up there. The only people on this thread who have presented themselves as having all the answers are the creationists. And just to make the point, the only reason you know enough to make those comments about gravity, magnetism, and subatomic particles is because of SCIENCE articles where SCIENTISTS (not preachers) clearly state that we don't have it all figured out.
Nice try, though.
Jun 22, 2010
Rank: 1.8 / 5 (5)
To pretend to know what you do not know is a disease."
Lao Tzu
Jun 22, 2010
Rank: 5 / 5 (5)
Jun 22, 2010
Rank: 4.2 / 5 (5)
That is very true, and creationists (and theists in general) are the best example.
Jun 22, 2010
Rank: 1 / 5 (4)
The quote allows the closed minded to identify themselves.
With kind regards,
Oliver K. Manuel
Jun 23, 2010
Rank: 5 / 5 (1)
Weak.