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Topic: The Stars, Like Dust

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	Dust Rings Around Stars - Context Picture
		The observed radiation from the disk is caused by dust particles which reflect the light of the central star.
		The central portion of the disk remains unseen because of residual glare from the bright star.
		All dust rings, whether around stars or planets, can only stay intact by some mechanism confining the dust, likely the gravitational tug of unseen planets.
	www.solarviews.com /cap/ds/dustring.htm (570 words)

	StarsIntro
		A star is a body that at some time in its life generates its light and heat by nuclear reactions, specifically by the fusion of hydrogen into helium under conditions of enormous temperature and density.
		Stars can range up to about 100 times the mass of the Sun (at which point nature stops making them) down to around 8% that of the Sun, at which point the internal temperature is not high enough to run the full range of nuclear reactions (which requires at least 7 million degrees Kelvin).
		The part of the star that is exploaded outward is so hot that nuclear reactions produce all the chemical elements, including a tenth of a solar mass of iron, which then blend with the gasses of interstellar space, out of which new stars are formed.
	www.astro.uiuc.edu /~kaler/sow/star_intro.html (5468 words)

	Galaxies and the Universe -Dust in Galaxies
		Looking from the outside in through the whole disk, dust absorbs virtually all the visible light from the center (which is why it's so hard to see the Galactic Center), and shows an intricate level of cloud and filament structure.
		It turns out that dust is a useful first proxy for phases of the interstellar medium that are harder to trace, since cool gas and dust are coupled gravitationally and through the drag of atom/grain collisions.
		For thermal emission, dust grains are heated by absorption of starlight, which operates most effectively in the blue and UV as the wavelength comes closer to the characteristic grain size.
	www.astr.ua.edu /keel/galaxies/dust.html (2704 words)

	APOD: 2003 September 28 - Our Galaxy in Stars, Gas, and Dust (Site not responding. Last check: 2007-10-21)
		The blue nebulae are primarily reflection nebulae, clouds of gas and fine dust reflecting the light of nearby bright stars.
		Dust is so plentiful that it obscures the Galactic Center in visible light, hiding its true direction until discovered early last century.
		The diffuse glow comes from billions of older, fainter stars like our Sun, which are typically much older than any of the nebulae.
	antwrp.gsfc.nasa.gov /apod/ap030928.html (205 words)

	THE INFRARED UNIVERSE - Star Formation
		Since a protostar is embedded in a cloud of gas and dust, it is difficult to detect in visible light.
		The light from the protostar is absorbed by the dust surrounding it, causing the dust to warm up and radiate in the infrared.
		There is evidence that the remaining dust and gas surrounding T-Tauri stars form rotating disks which may mark the beginnings of planetary systems.
	www.ipac.caltech.edu /Outreach/Edu/sform.html (673 words)

	CNN.com - Planets form like 'dust bunnies' - Oct 19, 2004
		In this case, it spotted rings of dust around the stars by recording the heat emitted by dust grains lit by the star.
		The stars in the new study ranged in age from newborn to about 800 million years old, covering a time frame corresponding to the moon's formation here and on into the emergence of life on Earth.
		Importantly, the new set of observations detail dust disks that are relatively close to the stars, the region analogous to where Venus, Earth and Mars reside.
	www.cnn.com /2004/TECH/space/10/19/planet.formation (709 words)

	SF REVIEWS.NET: The Stars, Like Dust / Isaac Asimov
		SF REVIEWS.NET: The Stars, Like Dust / Isaac Asimov
		Though The Stars, Like Dust has not aged as gracefully as many of Asimov's other classics from this period, it is still a terrifically fun bit of escapism.
		The Stars, Like Dust, in addition, has one of those thriller storylines in which everybody is plotting against everybody else until the betrayals and double dealings become more than a bit clockwork.
	www.sfreviews.net /starslikedust.html (282 words)

	Dust rings around distant stars suggest presence of planets
		And, surrounding each star like immense hula hoops are disks of dust that appear to have been shaped by planets in the same way that the moons of Saturn sculpt the rings about that planet.
		The rings around one of the stars, HD 141569, have a dark gap that may have been cut by the gravitational influence of a planet, said Alycia Weinberger of the University of California at Los Angeles, a member of the astronomy team that made the discovery.
		The outflow from the star blows away the remaning dust and gas, leaving behind the planets and some orbiting boulders called plantisimals.
	www.canoe.ca /SpaceArchive/990109_rings.html (626 words)

	BBC - Science & Nature - Space - Inside Stars
		Over millions of years since the Big Bang, stars have created all the chemical elements in the Universe.
		Unlike nuclear plants on Earth, stars don't produce energy by splitting the atom - known as 'nuclear fission'.
		Stars a few times bigger than the Sun will eventually have cores made entirely of iron.
	www.bbc.co.uk /science/space/stars/stellarsoup/index.shtml (302 words)

	THE STARS Sand Or Dust? (Site not responding. Last check: 2007-10-21)
		THE STARS will undoubtedly be the Saints of God the believers and followers of Jesus Christ, the Saviour.
		THE DUST will be the ignorant and untaught mass of humanity-resurrected in physical form to receive their rewards or otherwise.
		The seed (body) is buried in the ground, decays and returns to the elements; but the heart (soul) of the seed (body) becomes a sprout, or new body, like unto His glorified body.
	www.cdlreport.com /sermons/stars.htm (1367 words)

	SPACE.com -- Defenses Down, Galactic Dust Storm Hits Solar System
		During limited solar activity (top picture) most interstellar dust can be found above or below the Sun, while at the solar maximum (bottom picture) the dust is concentrated close to the Sun in the plane of the planets orbits.
		While no serious consequences are expected, the extra dust could slightly alter our night sky and might pose an increased risk to spacecraft, which are vulnerable to high-speed impacts from the tiny particles.
		When interstellar dust hits comets and asteroids, it's like shooting a tiny bullet at a rock, and more dust is kicked up, and the follow-on dust tends to be bigger.
	www.space.com /scienceastronomy/dust_storm_030814.html (908 words)

	Amazon.ca: Music: Scattering Stars Like Dust (Ir (Site not responding. Last check: 2007-10-21)
		Scattering Stars Like Dust is a 47-minute suite for the upright fiddle of the Middle East called the kamancheh and the tombak drum.
		Like most Persian music, it is improvised, based on a large traditional collection of short, melodic motifs.
		It is like listening to an intellectual conversation with the different phrases commenting on one another.
	www.amazon.ca /exec/obidos/ASIN/B000006OIH (858 words)

	The American Enterprise: Dust and Stars (Site not responding. Last check: 2007-10-21)
		One soldier was stranded, disorient- ed, in the dust blizzard for three hours while trying to make his way from the mess tent to his sleeping tent.
		Kuwait, like most of the rest of the Persian Gulf states, is now a multicultural nation, where large numbers of imported Filipino, Indian, Sri Lankan, Indonesian, and other workers blend with native Arabs in a tawny skinned, fl haired gumbo.
		Literally the only objects in this dust bowl aside from the dust are three large tanker trucks laden with jet fuel (the downpayment on a helo gas station), six gun trucks, and the lonely command tent with a handful of humvees parked next to it.
	www.taemag.com /issues/articleid.17370/article_detail.asp (20867 words)

	H F Walker [CLRC] - ISO Satellite Observation of Dust Disks Around Stars (Site not responding. Last check: 2007-10-21)
		These dust discs may be the sites where planets failed to form, or the remnant, left after planet formation.
		ISO has been used to investigate the size of the dust discs are dominated by silicate dust (small grains of sand), whilst others show the signature of complex organic molecules.
		The dust disc around Vega could be as large as 900 AU across (the Earth is 1 Astronomical Unit from the Sun).
	www.fas.org /spp/eprint/mars_uk/walker.html (207 words)

	KIdsWWwrite - Sarah's Stars - November 2003 - Dust
		He was comfortable reading comics in his room and liked having the house to himself.
		Dust, by Arthur Slade, was a superb book.
		Dust is a chiller, one that seeps into your bones.
	www.kalwriters.com /kidswwwrite/26/dust.html (314 words)

	Origins of Planets studied in Lab
		Dust is an important part of the universe, from (top to bottom) galaxies, nebulas, to Jupiter's moon Io and comets.
		A dying star disgorges heavy atoms that eventually form dust grains that, in turn, coalesce into ever-larger debris until planets are formed around new stars.
		What has not been given much study is the fact that dust is readily pushed around by sunlight and by stellar winds, and easily electrified by exposure to ultraviolet light or even friction with other dust particles.
	science.nasa.gov /newhome/headlines/ast06apr98_1.htm (1375 words)

	DUST-ENSHROUDED VARIABLE STARS
		Perhaps the best-known type of AGB stars are the Mira variables, named after the star Mira in the constellation of Cetus.
		A Mira variable is a star whose brightness varies by at least a factor of 10 (i.e., a magnitude change of at least 2.5), with a period of between 100 and 1000 days.
		This dust is produced in the cool outer layers and blown outwards by radiation pressure from the star.
	www.etsu.edu /physics/bsmith/variable/AGB.html (934 words)

	Imagine the Universe! Dictionary A-D
		A theory of cosmology in which the expansion of the universe is presumed to have begun with a primeval explosion (referred to as the "Big Bang").
		An X-ray binary is a special case where one of the stars is a collapsed object such as a white dwarf, neutron star, or fl hole, and the separation between the stars is small enough so that matter is transferred from the normal star to the compact star star, producing X-rays in the process.
		It may refer to material surrounding a newly-formed star; material accreting onto a fl hole or neutron star; or the large region of a spiral galaxy containing the spiral arms.
	imagine.gsfc.nasa.gov /docs/dict_ad.html (2472 words)

	Compare Prices and Read Reviews on Scattering Stars Like Dust - Kayhan Kalhor at Epinions.com
		Kayhan Kalhor, one of the three musicians from Ghazal, is a master of the kamancheh or the Iranian spiked fiddle, a four stringed instrument that sounds something like an Eastern version of a violin.
		Like the violin, the kamancheh has a lonely high pitched sound with a great deal of timbre and delicateness to it.
		There are three tracks, all instrumental, on Scattering Stars Like Dust and Kalhor performs both solo and with tombak player Pejman Hadadi.
	www.epinions.com /musc-review-337-549C42D-3863E7C5-prod1 (356 words)

	APOD: 2004 July 15 - Stars and Dust in Corona Australis (Site not responding. Last check: 2007-10-21)
		Probably less than 500 light-years away and effectively blocking light from more distant, background stars in the Milky Way, the densest part of the dust cloud is about 8 light-years long.
		Their characteristic blue color is produced as light from hot stars is reflected by the cosmic dust.
		Magnificent globular star cluster NGC 6723 is seen here below and left of the nebulae.
	antwrp.gsfc.nasa.gov /apod/ap040715.html (179 words)

	Sloan et al. 1995, Silicate and related dust emission ...
		We assumed that all of the stars could be approximated as M6 giants, and modeled them with a 3240 K Engelke function (Engelke 1992) with 15% SiO absorption at 8 µm.
		We defined the dust contrast to be the ratio of dust to stellar emission summed from 8 to 15 µm.
		The silicate dust sequence shows convincingly that the emission due to oxygen-rich dust is constrained to a narrow range of possible spectra.
	isc.astro.cornell.edu /~sloan/library/sil94.html (868 words)

	APOD: May 9, 1999 - Fractal Interstellar Dust Up Close (Site not responding. Last check: 2007-10-21)
		Dust usually shows its presence by blocking out light emitted from stars or nebulae behind it, sometimes creating the illusion of a horse's head or a sombrero hat.
		By studying how dust absorbs, emits, and reflects light, astronomers do know that interstellar dust is much different than the cell and lint based dust found around a typical house.
		fractal adhesion model for dust grains involving random conglomerates of spherical compounds of different properties, here artificially highlighted by different colors.
	antwrp.gsfc.nasa.gov /apod/ap990509.html (155 words)

	APOD: 2003 September 8 - Stars and Dust of the Lagoon Nebula (Site not responding. Last check: 2007-10-21)
		APOD: 2003 September 8 - Stars and Dust of the Lagoon Nebula
		The greater nebula, also known as M8 and NGC 6523, is named "Lagoon" for the band of dust seen to the left of the open cluster's center.
		A bright knot of gas and dust in the nebula's center is known as the Hourglass Nebula.
	ftp.ru.postgresql.org /apod/ap030908.html (181 words)

	United Press International - Science & Technology (no pub) - Dust holds distant planets' footprints (Site not responding. Last check: 2007-10-21)
		The new technique, pioneered by University of Rochester astronomer Alice Quillen and graduate student Stephen Thorndike and described in the current issue of The Astrophysical Journal Letters, instead is based on studies of patterns in dust discs associated with planet-bearing stars.
		Working from computer simulations of what planetary-sculpted dust patterns might look like, Quillen and Thorndike turned their sights on Epsilon Eridani, a star about 10 light-years from Earth that already is known to have one Jupiter-sized planet in its family.
		The cool radiation from the dust, which reflects energy by the mother star, is prominent at infrared wavelengths.
	www.upi.com /view.cfm?StoryID=20021023-070937-8866r (763 words)

	In the Stars: Dust for life - (United Press International) (Site not responding. Last check: 2007-10-21)
		The giant star collapsed, exploded in a titanic blast, then shrunk into a dark dwarf known as a neutron star, a minuscule fraction of its former size.
		Indeed, it is quite possible the sun was born as part of a litter of stars out of the nebula.
		The same primordial dust cloud that formed the separate planets and moons and asteroids and comets did not segregate its elements so that only Earth received the building blocks of life.
	www.washtimes.com /upi-breaking/20050113-111305-4004r.htm (1172 words)

	HubbleSite - Vast Stellar Disks Set Stage for Planet Birth in New Hubble Images - 2/9/1999
		Dramatic pictures of eerie disks of dust encircling young stars are giving astronomers a new look at what may be the early formative stages of planetary systems.
		All of the objects in these pictures are extremely young stars, buried in the centers of these pictures.
		The wisps of material surrounding the young stars are glowing from reflected starlight.
	hubblesite.org /newscenter/newsdesk/archive/releases/1999/05 (224 words)

	Sports: Stars dust off Oilers again
		The Stars and Oilers have met in the playoffs six of seven seasons (they both missed last season) with Dallas winning the past five.
		The Stars looked like they would walk away early but the Oilers came back in the second period to tie it at 2.
		The Oilers outshot the Stars 32-24 but couldn't find a way to beat Turco in the third.
	www.sptimes.com /2003/04/20/news_pf/Sports/Stars_dust_off_Oilers.shtml (619 words)

	Scattered about the immense distances between the stars are dust particles and hydrogen atoms
		Scattered about the immense distances between the stars are dust particles and hydrogen atoms.
		This process tales a million years for massive stars, 50 million years for star the size of our sun, and 100 million years for low mass stars.
		Then stars are left to orbit freely in the center of their own galaxy.
	web.pdx.edu /~cgh/birthstars.html (380 words)

	Amazon.com: The Stars, Like Dust (The Empire Novels): Books: Isaac Asimov (Site not responding. Last check: 2007-10-21)
		"The Stars, Like Dust" is either the first or second novel, chronologically, in Asimov's Empire Series, depending on whether you believe the consensus (first) or Asimov's Author's Note in Prelude to Foundation (second).
		But THE STARS LIKE DUST reminded me of a genre that I had not yet come across in his fiction: the thriller.
		On the other hand, I did like the fact that the science was important to the story.
	www.amazon.com /exec/obidos/tg/detail/-/0553293435?v=glance (2126 words)

	[62.06] The Non-axisymmetric Distribution of Stars and Dust in the Milky Way (Site not responding. Last check: 2007-10-21)
		The dust distribution is used to calculate absorbtion at the NIR J and K wavebands, while stellar emission in these wavebands is modeled with two components: a warped exponential disk with a scale length of 0.27 R
		The warp is evident in both the dust and stellar component, and starts within the Solar Circle.
		In the FIR (dust) emission, the spiral arms are well described by their mapping with the HII regions, which shows four arms, whereas in the NIR the (stellar) emission can be well described by a {\em two-armed} logarithmic spiral with a pitch angle of 13.7 degrees.
	www.aas.org /publications/baas/v31n5/aas195/402.htm (198 words)

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