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Spitzer Image Gallery - "A Shocking Surprise"
Spitzer Image Gallery ^ | n/a

Posted on 03/16/2008 1:49:21 PM PDT by Ken H

A Shocking Surprise in Stephan's Quintet

This false-color composite image of the Stephan's Quintet galaxy cluster clearly shows one of the largest shock waves ever seen (green arc), produced by one galaxy falling toward another at over a million miles per hour. It is made up of data from NASA's Spitzer Space Telescope and a ground-based telescope in Spain.

Four of the five galaxies in this image are involved in a violent collision, which has already stripped most of the hydrogen gas from the interiors of the galaxies.

The centers of the galaxies appear as bright yellow-pink knots inside a blue haze of stars, and the galaxy producing all the turmoil, NGC7318b, is the left of two small bright regions in the middle right of the image. One galaxy, the large spiral at the bottom left of the image, is a foreground object and is not associated with the cluster.

The titanic shock wave, larger than our own Milky Way galaxy, was detected by the ground-based telescope using visible-light wavelengths. It consists of hot hydrogen gas. As NGC7318b collides with gas spread throughout the cluster, atoms of hydrogen are heated in the shock wave, producing the green glow.

Spitzer pointed its infrared spectrograph at the peak of this shock wave (middle of green glow) to learn more about its inner workings. This instrument breaks light apart into its basic components. Data from the instrument are referred to as spectra and are displayed as curving lines that indicate the amount of light coming at each specific wavelength.

The Spitzer spectrum showed a strong infrared signature for incredibly turbulent gas made up of hydrogen molecules. This gas is caused when atoms of hydrogen rapidly pair-up to form molecules in the wake of the shock wave. Molecular hydrogen, unlike atomic hydrogen, gives off most of its energy through vibrations that emit in the infrared.

This highly disturbed gas is the most turbulent molecular hydrogen ever seen. Astronomers were surprised not only by the turbulence of the gas, but by the incredible strength of the emission. The reason the molecular hydrogen emission is so powerful is not yet completely understood.

Stephan's Quintet is located 300 million light-years away in the Pegasus constellation.

This image is composed of three data sets: near-infrared light (blue) and visible light called H-alpha (green) from the Calar Alto Observatory in Spain, operated by the Max Planck Institute in Germany; and 8-micron infrared light (red) from Spitzer's infrared array camera.


TOPICS: Miscellaneous
KEYWORDS: falsecolor

1 posted on 03/16/2008 1:49:23 PM PDT by Ken H
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To: Ken H

Wiseguy.


2 posted on 03/16/2008 1:52:04 PM PDT by Commander8 (Am I therefore become your enemy, because I tell you the truth? Galatians 4:16)
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To: Ken H

No pictures of Eliot Spitzer’s exploits, or the exploited ones?


3 posted on 03/16/2008 1:52:25 PM PDT by RJR_fan (May God have mercy upon us all.)
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To: Ken H

LOL


4 posted on 03/16/2008 1:52:53 PM PDT by Tribune7 (How is inflicting pain and death on an innocent, helpless human being for profit, moral?)
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To: Ken H

galaxy #9?


5 posted on 03/16/2008 1:58:35 PM PDT by RDTF (Go AEGIS!)
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To: Ken H

Spitzer indeed pointed his infrared spectrograph at something and it wasn’t his wife!


6 posted on 03/16/2008 2:01:13 PM PDT by ricks_place
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To: Ken H

I see a smiley face.


7 posted on 03/16/2008 2:02:52 PM PDT by csvset
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To: Ken H
Stephan's Quintet

Five Diamonds in the sky, you might say...

8 posted on 03/16/2008 2:04:24 PM PDT by mikrofon (Space BUMP)
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To: Ken H
Stephan's Quintet is located 300 million light-years away

Holy Moly, Eliot Bat Man!

9 posted on 03/16/2008 2:04:34 PM PDT by Iron Munro (Suppose you were an idiot, and suppose you were a member of Congress; but I repeat myself.)
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To: Ken H

We haven’t paid the corporate-academic complex to use such knowledge. It would be unbecoming, for we unworthy peasants to be interested.


10 posted on 03/16/2008 2:04:36 PM PDT by familyop ("Male," lowly enlisted trash, scary combat MOS, worthless "weekend warrior," no degree.)
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To: Ken H
I see galaxies colliding. I need to stay off the sauce.
11 posted on 03/16/2008 2:11:09 PM PDT by LiberConservative
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To: Ken H

While making dinner an hour ago, I was chit chatting with my 21 year old, while we were watching FNC. He was surprised when Fox showed the cover of the (I think) NY Post, showing a seductive picture Spitzer’s prostitute. “How low can we go?” was his comment..I agreed and smiled to myself, thinking... I raised a decent kid.


12 posted on 03/16/2008 2:18:31 PM PDT by alice_in_bubbaland (Vote Obama! And we'll be picking shrapnel out of our butts for decades!)
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To: Ken H

Watch how many views this gets... LOL!


13 posted on 03/16/2008 2:19:51 PM PDT by The Mayor (The purpose of prayer is not to get what we want, but to become what God wants.)
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To: Ken H

Is that an inter-galactic “Smiley Face” at center-right?


14 posted on 03/16/2008 2:29:33 PM PDT by Mad_Tom_Rackham ("The land of the Free...Because of the Brave")
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To: Ken H

Fooled me too!


15 posted on 03/16/2008 2:35:49 PM PDT by Randy Larsen (Arrogance IS my virtue!)
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To: Ken H

Wrap Global Warming, Halliburton, and Voter Fraud in that and ya got yourself a Pulitzer.


16 posted on 03/16/2008 2:37:48 PM PDT by VRWC For Truth (No mas Juan "Traitor Rat" McAmnesty)
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To: Ken H

As of March 2006. What is the current status? I understand it should be dormant inanatermatter vortex by now.


17 posted on 03/16/2008 2:42:21 PM PDT by sodpoodle (Despair - man's surrender. Laughter - God's redemption.)
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To: Ken H

aw shucks, I thought this was another thread about whores and Democrats.....

great info, though — thanks!!

what happens when worlds collide......


18 posted on 03/16/2008 2:48:35 PM PDT by Enchante (Eliot Spitzer, can your daughters be "high class" coke-whores for some Democrat friends?)
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To: Ken H

The colors! (Will this cost me $5000 for just a peek?)


19 posted on 03/16/2008 3:49:54 PM PDT by Libloather (March is Liberal Awareness Month.)
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To: Ken H

BTW, At the beginning of It’s a Wonderful Life, blinking lights are superimposed on a photograph of the Stephan Quintet to indicate a conversation among angels.


20 posted on 03/16/2008 4:00:34 PM PDT by dr_lew
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To: Ken H

That’s what happens when the galaxy is subjected to global warming.


21 posted on 03/16/2008 4:23:51 PM PDT by 353FMG (Vote for the Person who will do the least damage to our country.)
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To: Ken H

The spiral arm tearing away from upper left galaxy is what draws my attention. How spectacular this must look like from that perspective. It gives an idea what the Milky Way/Andromeda collision will look like. Andromeda is twice our size, someday that will be our spiral arm tearing off.


22 posted on 03/17/2008 12:22:58 AM PDT by tlb
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