
	Where results make sense

Topic: Filament astronomy

Related Topics

Oracle bone

Photoconductivity

Probability interpretations

Catholic Church in Portugal

Chulas Fronteras

House of the Dead III

Hal Douglas

Vimy, France

Zulia

TMS

Bathtub Hoax

In the News (Thu 31 Dec 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Filament (astronomy) information - Search.com
		In astronomy, filaments are the largest known structures in the universe, thread-like structures with a typical length of 70 to 150 megaparsec that form the boundaries between large voids in the universe.
		Filaments consist of galaxies; parts where a large number of galaxies are very close to each other are called superclusters.
		In solar astronomy, a filament is a strand of cool plasma suspended over the photosphere by magnetic fields, which appears dark as seen against the disk of the Sun.
	www.search.com /reference/filament_(astronomy) (150 words)

	Filament - Wikipedia, the free encyclopedia
		In cosmology, a filament is the organizational largest structure of the universe, consisting of superclusters arrayed against voids and supervoids.
		In solar astronomy, a filament is a strand of cool gas suspended over the photosphere by magnetic fields, which appears dark as seen against the disk of the Sun.
		Contrary to fibres (or staple fibres) which are cut to a selected length, the word "filament" is used in the textile industry to designate an endless or continuous object, the length of which is only limited by the capacity of the spool whereon the filament is wound.
	en.wikipedia.org /wiki/Filament (443 words)

	Highbeam Encyclopedia - Search Results for Filament (astronomy)
		The filaments are made of galaxies and clusters of galaxies strung...
		Quiescent filaments (the equivalent of quiescent prominences at...
		According to their model, when matter began organizing into the filaments, sheets, and dusters of galaxies that fill the cosmos, the gas gravitationally lured into these regions became compressed...
	www.encyclopedia.com /SearchResults.aspx?Q=Filament+(astronomy) (908 words)

	KAS Online >> Astronomy Day 2007 Report
		Its purpose is to “bring astronomy to the people” through educational displays, hands-on activities, lectures, and sharing the splendors of the sky.
		The main reasons for Astronomy Day Theater was to make use of the alcove in the Glen Vista Room and to give folks a nice spot to sit down and relax for a bit.
		The KAS is a 501(c)(3) non-profit organization whose purpose is to promote the exchange of information among those with a common interest in all areas of astronomy, to educate the public about astronomical discoveries and events and to cooperate with other amateur and professional astronomical organizations.
	www.kasonline.org /astroday.html (1596 words)

	The magnetic nature of wide EUV filament channels and their role in the mass loading of CMEs (Site not responding. Last check: )
		Far from the filament, the absorbing condensations are located below 4 Mm in altitude above the photosphere, on the edge of weak photospheric parasitic polarities, within the lower parts of long field lines overlaying the filament.
		Further implications from this work are discussed, on the visibility and the geometry of the condensations, on the existence of EUV filament channels in the absence of filaments, on the loading of cool material into filament feet through bald patch reconnection and on the complex geometry of the upper prominence-corona transition region.
		The magnetic topology implies that during the filament eruption, the mass of its wide EUV feet will not contribute to the CME, whereas the extra mass provided by the large filling of dips in the filament flux tube will be loaded into the CME.
	www.edpsciences.org /10.1051/0004-6361:20020179 (377 words)

	APOD: 2004 December 6 - Filaments Across the Sun (Site not responding. Last check: )
		filaments are actually relatively cool and dark prominences of solar
		Filaments typically last a few weeks before falling back.
		Pictured above, the two filaments are visible on the Sun's right side.
	antwrp.gsfc.nasa.gov /apod/ap041206.html (132 words)

	[No title]
		The intrinsic magnetic field is well-aligned along the length of the filament.
		Since these filaments (most of which are oriented perpendicular to the Galactic plane) are believed to trace the overall magnetic field in the inner Galaxy, the Pelican is the first detection of a component of this field parallel to the plane.
		We also discuss the possibility that the nebular gas might be magnetically confined by the ambient magnetic field delineated by the nearby nonthermal filaments.
	www.aoc.nrao.edu /~gcnews/gcflash/gcflash_Vol.10_No.5 (647 words)

	Gemini Observatory (Site not responding. Last check: )
		The red color of the galaxies tracing the filament means that they are old systems very similar to the ones found in the cluster core.
		The filament extends well beyond the virial radius (~2.3 Mpc) of the cluster, (the virial radius defines the physical size of the gravitationally stable part of the cluster).
		This is the first convincing candidate for the type of filament channeling of matter onto massive clusters predicted by numerical simulations.
	www.gemini.edu /index.php?option=content&task=view&id=15 (892 words)

	The Electric Universe \| Scripts \| Filaments of the Universe
		X ray astronomy shows huge clouds of a temperature of allegedly 30-300 MK These are the so called "hot" halo- or cluster-gases.
		Immediately after the start, the filaments are formed via attraction among positive currents and their diameter become smaller than that of the active area.
		A supernova can explode only due to the positive charge in its core.(Non-electric astronomy cannot understand that the implosion turns into an explosion and not into a fl hole.) Their remnant strongly emits X ray after thousands of years as an anode.
	www.the-electric-universe.info /Scripts/filament.html (3458 words)

	Chinese Astronomy and Astrophysics. (Site not responding. Last check: )
		Liang, A VLBI study of blazars in the Southern Hemisphere, Chinese Astronomy and Astrophysics 22 (1) (1998) pp.
		Wang, On the transport of magnetic energy and complexity to the solar corona, Chinese Astronomy and Astrophysics 19 (4) (1995) pp.
		Hu, L. Xia, A numerical study of the propagation of flare-induced shock waves, Chinese Astronomy and Astrophysics 21 (2) (1997) pp.
	www.elsevier.com /cdweb/journals/02751062/viewer.htt?viewtype=keywords&rangeselected=13 (668 words)

	SPACE.com -- Painting With Light: New Hubble Image
		Astronomy may be considered the ultimate art form, especially considering the images sometimes produced by the Hubble Space Telescope.
		The energy to illuminate the filament is supplied by a powerful stellar wind coming from a massive star just outside the image.
		The massive stars in A1 and A2 must have formed within the last 10,000 years since their natal gas shrouds are not yet disrupted by the powerful radiation of the newly born stars.
	www.space.com /scienceastronomy/astronomy/hubble_esa_paint_011019.html (524 words)

	[No title]
		Like the nearby Arched Filaments, these quasi-linear features may be thermally emitting structures, although the similarity of their orientation to the that of the nearby NTF's and streaks suggest that they have also been shaped by the magnetic field.
		For this filament, we did not attempt to derive the intrinsic magnetic field orientation since polarized emission is only detectable at two of the four observed frequencies.
		Assuming that the filament is a cylinder, with length 700\arcsec~(30 pc) and radius 6\arcsec~(0.25 pc), we calculate an equipartition magnetic field strength of B$_{eq}$\ab140 $\mu$G, comparable to the values derived for the NTF's in the Radio Arc using equipartition methods (Tsuboi et al.
	www.aoc.nrao.edu /~gcnews/gcnews/Vol.10/clang@zia.aoc.NRAO.EDU_threads.tex.txt (6040 words)

	CWRU NSRT About Spectra (Site not responding. Last check: )
		The filament in the light bulb is essentially heated by the electricity passing through it to a temperature of about 4000 degrees.
		The atoms in the filament get excited and start to wiggle around, producing light energy in a coherent continuous distribution that we see as a featureless continuous spectrum.
		Since the spectrum from the light bulb is dependent entirely on the temperature of the filament, this type of continuous spectrum is known as a fl body spectrum.
	astrwww.astr.cwru.edu /reference/spectra.html (1292 words)

	[No title]
		Filament Channel Brightening on January 22, 2000 17:58 - 18:09 UT Filaments are cooler layers of plasma on the sun that get caught higher up in the sun's atmosphere by magnetic field lines.
		At 18:02 UT the parts of the filament channel which show up as bright seem to be the coolest parts of the filament channel, and those that show up as dim seem to be the hottest.
		The filament channel does not seem to be disconnected temperature-wise from the solar flare region, but rather it seems that the filament channel is part of the same system across which heat can travel.
	solar.physics.montana.edu /emily (2636 words)

	AllRefer.com - filament (astronomy) Information
		In astronomy, dark, winding feature occasionally seen on images of the Sun in hydrogen light.
		Filaments are clouds of relatively cool gas suspended above the Sun by magnetic fields and seen in silhouette against the hotter photosphere below.
		During total eclipses they can be seen as bright features against the sky at the edge of the Sun, where they are known as prominences.
	www.allrefer.com /filament-astronomy (132 words)

	Astronomy@Kirkwood IC: The Crab Nebula (Site not responding. Last check: )
		By carefully measuring the positions of filaments of the nebula with respect to the pulsar—the exposed degenerate neutron core of the supergiant star, we can ascertain the expansion rate of the nebula and finally the year the expansion began.
		Assuming that the particular filament is measured to be 51.5 mm from the pulsar, the filament's angular distance from the pulsar is
		Given that the most recent photo was taken in 1976, we can then use the proper motion of the filament to determine how many years ago the filament began moving outward from the pulsar to reach its location in the latest photo.
	www.avalon.net /~bstuder/crab_lab.html (970 words)

	Bad Astronomy Blog » Blog Archive » LED By the Nose
		The filament emits light because it is very hot (duh), but the temperature also causes the springy filament to be sufficiently ductile that it deforms plastically under its own weight.
		When the lamp is switched on the filament, due to its low resistance at room temperature, allows several times its working current to go through for a fraction of a second.
		Even very well made filaments would last much longer then the 750-1000 hours most are rated at (which is taking into account the high restistance and damage with the “cold starts” before reaching normal operating temperature).
	www.badastronomy.com /bablog?p=20 (3747 words)

	sh52a in wp04
		For this event, we have estimated the ejection speeds of the filament ranging from 10 to 160 km s$^{-1}$ for the first twenty minutes.
		It is noted that the initiation of the filament eruption (as defined by the rise speed less than 20 km s$^{-1}$) coincided with the preflare activity characterized by UV brightenings and CMFs.
		The speed of the associated LASCO CME can be well extrapolated from the observed filament speed and its direction is consistent with those of the disturbed UV loops associated with the preflare activity.
	www.agu.org /cgi-bin/SFgate/SFgate?&listenv=table&multiple=1&range=1&directget=1&application=wp04&database=/data/epubs/wais/indexes/wp04/wp04&maxhits=200&="SH52A" (1244 words)

	Astronomy Answers: From the Astronomical Dictionary (Site not responding. Last check: )
		The description of the word you requested from the astronomical dictionay is given below.
		In general, a filament is something that looks like a thin thread.
		In astronomy, filament is used as a name for (amongst other things)
	www.phys.uu.nl /~strous/cgi-bin/glossary.cgi?l=en&o=filaments (137 words)

	The 5th state of matter
		Filaments have the same interesting characteristics from a diameter of 0.01 mm to that of many 1000 of light-years.
		Filaments are incorrectly seen to be of plasma, however, particles move in only one direction in them, often against gravity.
		Filaments and jets in the fourth state of matter contradict physics many hundred times but they clearly obey all laws of physics in the fifth state of matter.
	www.5th-state-of-matter.info /5th-state.html (5059 words)

	[No title] (Site not responding. Last check: )
		A chain of cells joined end to end, as in certain algae.
		] Metallic wire or ribbon which is heated in an incandescent lamp to produce light, by passing an electric current through the filament.
		] A small transformer used exclusively to supply filament or heater current for one or more electron tubes.
	www.accessscience.com /Dictionary/F/F8/DictF8.html (2740 words)

	Astronomy 101 Thought Questions - Spring 2005
		If the filament appears orange, there is more red, orange, and yellow than there is green and blue.
		As I increase the temperature of the light bulb filament, one student watches the the color blue in the rainbow, while another student watches the color red.
		Hint: This is related to sunspots - if the filament is cooler than its surroundings (light from the hot lamp of the projector), it blocks more light than it releases and appears dark.
	mintaka.sdsu.edu /faculty/erics/teach/questions2.html (4027 words)

	Calspace - Glossary of Terms - (Site not responding. Last check: )
		Short name for the National Astronomy and Ionospheric Center (NAIC) at Arecibo, Puerto Rico; often refers only to the NAIC 1000-ft (305-m) zenith (䔸°) antenna, the world's largest radio astronomy collector.
		Branch of astronomy that focuses on measurements, especially those relating to positions and movements.
		A filament is a prominence projected on the solar disk.
	calspace.ucsd.edu /virtualmuseum/Glossary_Astro/gloss_a-f.shtml (4109 words)

	NTIA Special Publication 98-35, Radio Astronomy Spectrum Planning Options, Chapter 1
		The science of astronomy had made rapid advances after the invention of the optical telescope in the early seventeenth century and the application of photographic methods in the last century.(1) However, all these astronomical observations were in the visible portion of the electromagnetic spectrum.
		Radio astronomy and the radio astronomy service are defined in the NTIA Manual as being astronomy based on the reception of radio waves of cosmic origin.(2) This radio service is relatively new, having been proposed and established in 1959.(3) Consequently, many individuals do not fully understand the spectrum requirements of the radio astronomy service.
		The third law is demonstrated by shining the light from a hot tungsten filament (continuous radiation is produced) through cooler sodium vapor resulting in two absorption lines in the yellow-orange, at exactly the same wavelengths at which the emission lines had appeared.
	www.ntia.doc.gov /osmhome/reports/pub9835/Raspchp1.htm (3717 words)

	Astronomy 101- Quiz #1
		Two incandescent lamp filaments are at the same distance from the observer.
		Filament A is at a higher temperature than filament B. Compared to filament A, filament B is
		She notes that the object appears to shift its position relative to the distant background by 2 degrees as she goes from one side to the other.
	lheawww.gsfc.nasa.gov /~yaqoob/spagna_quizes.html (3617 words)

	ESO - 2001
		From being dominated by filaments, it becomes populated by large clusters of galaxies that are still connected by "bridges" and "walls", the last remains of the largest of the original filaments.
		Thanks to the great light-gathering capabilily of the VLT and the excellent FORS1 multi-mode instrument at the 8.2-m ANTU telescope, spectra of eight, faint Lyman-alpha objects were obtained in March 2000 that allowed measuring their exact redshifts and hence, their distances [2].
		The research described in this press release is the subject of a scientific article by the team, "Detection of a redshift 3.04 filament", to appear as a Letter to the Editor in the European journal Astronomy and Astrophysics.
	www.eso.org /outreach/press-rel/pr-2001/pr-11-01.html (2297 words)

	DNA Recombination And Repair -- A New Twist To RecA Function
		Now, Julia Cox, Oleg Tsodikov, and Michael Cox present evidence indicating that filaments of the bacterial RecA protein, long known for their role in homologous recombination and DNA repair, have properties reminiscent of a molecular motor as well.
		RecA filaments invade a region of double-stranded DNA with similar nucleotide sequence, displacing one strand to pair with the other.
		This implies a filament organization in which every RecA molecule hydrolyzes ATP in synchrony with the sixth RecA molecule to its left and the sixth RecA molecule to its right.
	www.sciencedaily.com /releases/2005/02/050211085410.htm (809 words)

	Soft X-ray Shadows (Site not responding. Last check: )
		The filament is shown by the overlaid contours, which represent 100 micron emission from dust at a temperature of about 30 degrees Kelvin (30 degrees Celsius above absolute zero) as measured by the infrared IRAS satellite.
		This filament absorbs the soft X-rays in this image (which is made from X-rays of energies between 100 and 300 eV), indicating that the hot gas is located behind the filament.
		This filament may be part of the shell of neutral gas that surrounds the hot bubble, whose interior is energized by UV light and stellar winds from hot stars in the Orion OB1 association.
	www.astro.psu.edu /xray/shadow/shadow_gifs/eridion.html (325 words)

	filament - Search Results - MSN Encarta
		Filament may refer to: In physics and electrical engineering : Electrical filament; Current filament; Filament propagation, diffractionless propagation of a light beam
		An electrical filament is a thread of metal, usually tungsten, which is used to convert electricity into light in incandescent light bulbs (as developed in 1874 by Alexander...
		Intermediate filaments (IF) PUBMED:8771189, PUBMED:3052284, PUBMED:2183847 are proteins which are primordial...
	encarta.msn.com /encnet/refpages/search.aspx?q=filament (189 words)

	filament - OneLook Dictionary Search
		Filament : Online Plain Text English Dictionary [home, info]
		Phrases that include filament: myosin filament, sliding filament model, z filament, active dark filament, glial filament, more...
		Words similar to filament: fibril, filamentary, filamentous, filum, strand, more...
	www.onelook.com /?w=filament&ls=a (288 words)

Try your search on: Qwika (all wikis)