WHAT KINDS OF THINGS ARE FOUND IN INTERSTELLAR SPACE

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WHAT KINDS OF THINGS ARE FOUND IN INTERSTELLAR
SPACE?
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A pictorial representation of the hydrogen spin
flip signal from hydrogen.
Spectral signals from space for the 21 cm spin
flip of hydrogen.
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THE MILKY WAY GALAXY SHOWING REGIONS OF DARK AND
LIGHT PATCHES IN THE STAR DISRIBUTION. WHAT
MAKES THE DIFFERENCE?
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FORMALDEHYDE, THE MOLECULE THAT WE USE FOR
PICKLING CORPSES. ONE OF THE USEFUL MOLECULES
OF LIFE. THINK OF IT AS C WATER. THE
STRUCTURE IS H2O BUT A CARBON IS ADDED.
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ONE KIND OF NEBULA IS AN EMISSION NEBULA. THESE
ARE CHARACTERIZED BY EMISSION SPECTRAL LINES
WHICH ALLOW US TO IDENTIFY WHAT COMPOSES THE
CLOUDS.
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INTERSTELLAR DIMMING MODEL FOR SELECT ABSORPTION
OF STAR SPECTRA BY INTERVENING CLOUDS OF DUST
AND GAS.
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SPECTRAL ANALYSIS OF ABSORBED LIGHT BY CLOUDS OF
DUST AND GAS. NOTE THE NARROW AND BROADENED
LINES IN THE SCAN.
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THE ORION NEBULA UNDER GREATER AND GREATER
MAGNIFICATION. A NURSERY OF STAR FORMATION.
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LOOKS LIKE A DANCING STICK MAN. SUCH DUST CAUSES
THE LIGHT TO BE PARTIALLY/TOTALLY OBSCURED AND
POLARIZED.
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RHO OPIUCHI PENTAGON SHAPE ON LEFT OBSCURES STARS
BEHIND IT TO ALLOW IT TO BE SEEN (PENTAGON
SHAPE). (B) RHO OPIUCHI IS THE BLUE OBJECT AT
THE TOP OF THE PICTURE. (C) AN INFRARED IMAGE OF
THE REGION OF SKY. THE HEAT (INFRARED) CAN PASS
THROUGH THE DUST AREA WHEREAS VISIBLE LIGHT
CANNOT. SOMETIMES WE LOCATE COCOONNEBULA THIS
WAY.
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HOW LIGHT IS POLARIZED BY DUST GRAINS AND
MOLECULES. POLARIZATION IS A VERY IMPORTANT
PROPERTY OF LIGHT/ELECTROMAGNETIC RADIATION.
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THE HORSEHEAD NEBULA IS IT A HOLE IN THE SKY OR
IS AN ABSORBER OF RADIATION? EARLY ASTRONOMER
THOUGHT THESE DARK REGIONS TO BE HOLES IN THE
HEAVENS.
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OPERATORS OF THE ULTRAVIOLET OBSERVATORY IN
BERKLEY. THE SATELLITE OPERATED FOR ABOUT 18
YEARS.
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A BROAD PICTURE OF THE MILKY WAY. A BAND OF DARK
INDICATES LIGHT ABSORBED BY NON GLOWING OBJECTS.
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A NEW DISCOVERY BUBBLE PATTERNS IN THE HEAVENS.
THE LOCAL BUBBLE LETS ULTRAVIOLET BE DETECTED.
SOME GALAXIES FORM IN BUBBLE PATTERNS.
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SOME EMISSION NEBULAE ALONG THE PLANE OF THE
MILKY WAY.
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MOLECULAR TRACERS CO MOLECULES CAN SHOW
RADIATION OUTPUT. PATTERN TO THE RIGHT IS THE
MAP OF CO MOLECULES. THE OBSCURING DUST CLOUD
SHOWN IN THE LEFT FIGURE
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M20 (LOWER) AND M8 (UPPER) NEDBULAE. THE TWO
NEBULAE ARE ONLY A FEW DEGREES APART.
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THE PROTON AND ELECTRON SPIN FLIP TO PRODUCE
THE 21 CM MICROWAVE RADIATION USED TO MAP THE
MILKY WAY.
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THE TRIFID NEBULA THE DUST LANES GIVE IT A
THREE-FOLD SHADOW APPEARANCE.
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DOPPLER SHIFT IN THE 21 CM HYDROGEN SPIN FLIP
SIGNALS.
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(No Transcript)
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RADIO CONTOUR MAP OF FORMALDEHYDE IN THE TRIFID
NEBULA (M20).
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SEVERAL NEBULA (A) THE EAGLE NEBULA, (B) COLD
GAS AND DUST INSIDE M16, (C) THE LAGOON NEBULA,
(D) THE CORE OF M8. EACH COLOR DEMONSTRATES THE
PRESENCE OF SPECIFIC ATOMS.