
	Where results make sense

Topic: Hubble Deep Field

Related Topics

Hubble Ultra Deep Field

Wide Field and Planetary Camera 2

Hubble Space Telescope

Wide Field and Planetary Camera

Universe

Galaxy formation and evolution

Andromeda Galaxy

NASA

Timeline of the Universe

Big Bang

Galactic Center

Cosmic background radiation

Jupiter (planet)

British Agricultural Revolution

Tanzania

	Hubble Deep Field - Wikipedia, the free encyclopedia
		The Hubble Deep Field (HDF) is the result of a series of observations by the Hubble Space Telescope of a small region of the northern celestial hemisphere.
		Once Hubble's corrective optics were shown to be performing well, Robert Williams, the then director of the Space Telescope Science Institute, decided to devote a substantial fraction of his DD time during 1995 to the study of distant galaxies.
		The HDF field is at the centre of this image, one degree across, which shows the unremarkable nature of this patch of sky.
	en.wikipedia.org /wiki/Hubble_Deep_Field (2245 words)

	Hubble Deep Field South (Site not responding. Last check: 2007-10-21)
		Known as the Hubble Deep Field South, it is a mission to assemble and layer from hundreds of images shot in multiple bands and spectrums the deepest, clearest images ever taken of the early universe.
		Dubbed the Deep Field North campaign, this was a first, a true "core sample" of the universe, as he puts it.
		Hubble focuses on a viewing hole the size of the period at the end of this sentence -- a point that, 12 billion light years away, disgorges a cornucopia of galaxies seven million light years across.
	icarus.stsci.edu /~mutchler/hdfs.html (2850 words)

	Hubble Ultra Deep Field - Wikipedia, the free encyclopedia
		The Hubble Ultra Deep Field (HUDF) is a small region of space imaged by the Hubble Space Telescope from September 24, 2003 through January 16, 2004.
		The patch of sky in which the galaxies reside (just one-tenth the diameter of the full moon) was chosen because of the low density of bright stars.
		This is indeed seen in the HUDF, although some argue that the difference is partly a result of the unusual wavelength used for the HUDF (corresponding to ultraviolet light from the rest-frame of the most distant galaxies).
	en.wikipedia.org /wiki/Hubble_Ultra_Deep_Field (379 words)

	Spaceflight Now \| Breaking News \| Hubble's deepest view ever unveils earliest galaxies
		Hubble's ACS allows astronomers to see galaxies two to four times fainter than Hubble could view previously, and is also very sensitive to the near-infrared radiation that allows astronomers to pluck out some of the farthest observable galaxies in the universe.
		The Hubble Ultra Deep Field is called a "pencil beam" survey because the observations encompass a narrow, yet "deep" piece of sky.
		Hubble's keen vision (0.085 arc seconds.) is equivalent to standing at the U.S. Capitol and seeing the date on a quarter a mile away at the Washington monument.
	spaceflightnow.com /news/n0403/09deepfield (1924 words)

	NODEv5n4-2 Hubble Deep Field (Site not responding. Last check: 2007-10-21)
		The Hubble Deep Field (HDF), a picture of a tiny patch of sky taken by the Hubble Space Telescope, is the deepest optical image of the universe ever recorded.
		Still, if as expected deepness goes with faintness and if thereby the image serves partly as a snapshot of the universe at a very early time in its history, then it is significant that the density of galaxies in the field is quite high; an estimated 1500 of all types and shapes crowd the frame.
		Though the field is a very small sample of the heavens, it is considered representative of the typical distribution of galaxies in space because the universe, statistically, looks largely the same in al directions.
	www.seds.org /nodes/NODEv5n4-2.html (283 words)

	Hubble Deep Field (Site not responding. Last check: 2007-10-21)
		The Hubble Deep Field is a rather uninteresting region 2.7 x 2.7 arcmin in size at high galactic latitude (low galactic extinction, no known interesting sources) that was observed for a total of 150 orbits by the Hubble Space Telescope Wide Field Planetary Camera.
		The field is full of galaxies, most of which are at high redshifts.
		A consequence of Hubble Deep Field: An extremely distant galaxy.
	astrosun.tn.cornell.edu /academics/courses/astro201/hubble_deep.htm (163 words)

	Hubble Deep Field Academy -- Science Background
		Each of the Hubble Deep Fields shows hundreds of galaxies in an area of the sky that is as small as the size of President Roosevelt's eye on a dime held at arm's length.
		The Hubble Deep Field will be used to count galaxies ten times as faint as the deepest existing ground-based optical observations and nearly twice as faint as the deepest existing Hubble images.
		Though the field is a very small sample of sky area it is considered representative of the typical distribution of galaxies in space because the universe, statistically, looks the same in all directions.
	amazing-space.stsci.edu /resources/explorations/hdf/hdf-scientist.htm (1962 words)

	SPACE.com -- Hubble Finds Farthest Galaxies Strangest Yet (Site not responding. Last check: 2007-10-21)
		The new image, called the Hubble Ultra Deep Field (HUDF), includes objects that until now have been too faint to be seen and includes ancient galaxies that emerged just 700 million years after the Big Bang from what astronomers call the "dark ages" of the universe.
		Hubble researchers are confident their new image contains galaxies whose light has been stretched to a red shift of 6 or more.
		Hubble's ACS picture required a series of exposures taken over the course of 400 HST orbits around Earth from Sept. 24, 2003, to Jan. 16, 2004.
	www.space.com /scienceastronomy/hubble_ultradeep_040309.html (1300 words)

	Hubble Deep Field (Site not responding. Last check: 2007-10-21)
		The Hubble Deep Field is a region of the celestial sphere about one 30-millionth the area of the sky that contains at least 1,500 faint galaxy.
		The region was imaged by NASAs Hubble Space Telescope in 1995 and is equivalent in apparent size to a shirt button held 75 feet away.
		If the Hubble Deep Field is typical of the rest of space, then it can be extrapolated that there are hundreds of billions of galaxies, each containing billions of stars within the visible universe alone.
	read-and-go.hopto.org /Hubble-Space-Telescope/Hubble-Deep-Field.html (201 words)

	BBC NEWS \| Science/Nature \| Hubble obtains deepest space view
		The Hubble Ultra Deep Field is the result of an unprecedented look over four months at just one patch of sky.
		Hubble has been peering at the same point in the heavens since September.
		In addition, the field had to be observable from both northern and southern hemispheres and easy to view with Alma, the array of microwave telescopes being constructed in South America.
	news.bbc.co.uk /1/hi/sci/tech/3387919.stm (579 words)

	HubbleSite - The Universe "Down Under" is the Latest Target for Hubble's Latest Deep-View - 11/23/1998
		Turning its penetrating vision toward southern skies, the Hubble telescope has peered down a 12- billion-light-year-long corridor loaded with a dazzling assortment of thousands of never-before-seen galaxies.
		The observation, called the Hubble Deep Field South, doubles the number of far-flung galaxies available to astronomers for deciphering the history of the universe.
		This new far-look complements the original Hubble "deep field" taken in late 1995, when Hubble was aimed at a small patch of space near the Big Dipper.
	oposite.stsci.edu /pubinfo/pr/1998/41 (152 words)

	HubbleSite - Hubble's Deepest View of the Universe Unveils Bewildering Galaxies across Billions of Years - 1/15/1996
		Representing a narrow "keyhole" view stretching to the visible horizon of the universe, the Hubble Deep Field image covers a speck of the sky only about the width of a dime 75 feet away.
		Though the field is a very small sample of the heavens, it is considered representative of the typical distribution of galaxies in space, because the universe, statistically, looks largely the same in all directions.
		Gazing into this small field, Hubble uncovered a bewildering assortment of at least 1,500galaxies at various stages of evolution.
	hubblesite.org /newscenter/newsdesk/archive/releases/1996/01 (194 words)

	Hubble Deep Field Photo
		Besides the classical spiral and elliptical shaped galaxies, there is a bewildering variety of other galaxy shapes and colors that are important clues to understanding the evolution of the universe.
		Representing a narrow "keyhole" view all the way to the visible horizon of the universe, the HDF image covers a speck of sky 1/30th the diameter of the full Moon (about 25% of the entire HDF is shown here).
		(The relatively bright object with diffraction spikes just left of center may be a 20th magnitude star.) Though the field is a very small sample of sky area it is considered representative of the typical distribution of galaxies in space because the universe, statistically, looks the same in all directions.
	www.spaceimages.com /hubdeepfiel.html (405 words)

	The Fors Deep Field (FDF)
		The FORS Deep Field (FDF) was established as a key project by the FORS consortium (Landessternwarte Heidelberg, Universitäts-Sternwarte Göttingen and Universitätssternwarte München) in order to make efficient use of the guaranteed time granted to the consortium in compensation for building the two FORS instruments attached to the VLT telescopes.
		Undoubtedly, the Hubble Deep Field North and follow-up observations with Keck were of particular importance to improove our knowledge of galaxy evolution in the redshift range z = 1-4.
		However, due to its relatively small field of view (~5.6sq.arcmin.) the results obtained are subject to large-scale variations and limitations due to small samples.
	www.lsw.uni-heidelberg.de /users/jheidt/fdf/fdf.html (696 words)

	Hubble Ultra Deep Field (Site not responding. Last check: 2007-10-21)
		In ground-based images, the patch of sky in which the galaxies reside (just one-tenth the diameter of the full moon) is largely empty.
		Installed in 2002 during Servicing Mission 3B, the ACS has twice the field of view and a higher sensitivity than the older main camera, the Wide Field Planetary Camera 2, installed during Servicing Mission 1 in 1993.
		That camera imaged the original Hubble Deep Field in 1995.
	www.sciencedaily.com /encyclopedia/hubble_ultra_deep_field (288 words)

	Modern Day Cosmology: The Hubble Deep Field
		To create it, the Hubble Space Telescope was programmed to expose its electronic detectors for about 100 hours over the course of 10 days,pointed at the tiny region of space near the constellation Ursae Majoris.
		Next to many of the galaxies is the redshift, z, for that galaxy (except for a few cases, the corresponding galaxy is usually the galaxy located to the upper left of the redshift number).
		Assume the Deep Field represents the actual distribution of galaxies in this portion of the sky.
	www.astro.washington.edu /labs/clearinghouse/labs/HDF/hdfmain.html (803 words)

	Bill Keel's AGN Gallery - Quasars at 40
		The very deep and very sharp X-ray images from the Chandra X-ray Observatory have allowed Amy Barger and colleagues to ask when most of the X-rays from quasars began their journey toward our detectors, and thus when massive fl holes were growing and radiating most powerfully.
		Using Hubble Space Telescope spectra, a group led by Todd Tripp found that there is another absorption-line forest, this one from O VI (that is, oxygen which has been stripped of 6 of its 8 electrons), seen from a pair of absorption lines in the deep ultraviolet.
		Such lenses can also be used to measure the Hubble constant independent of such traditional techniques as Cepheid variable stars, when the quasar is variable enough that we can see the same variations in both images and trace the time delay between images, caused by the different path lengths for light on the two paths.
	www.astr.ua.edu /keel/agn/quasar40.html (10228 words)

	Hubble Deep Field Survey. (Site not responding. Last check: 2007-10-21)
		The images, extracted from the Hubble Deep Field (HDF), were assembled from many separate exposures (342 frames total were taken, 276 have been fully processed to date and used for this picture) with the Wide Field and Planetary Camera 2 (WFPC2), for ten consecutive days between December 18 to 28, 1995.
		Though the field is a very small sample of sky, it is considered representative of the typical distribution of galaxies in space because the universe, statistically, looks the same in all directions.
		Small portion of the Hubble Deep Field image -- the deepest view of the universe taken with NASA's Hubble Space Telescope.
	hepwww.rl.ac.uk /ukdmc/pop/hdfpop.html (547 words)

	BBC NEWS \| Science/Nature \| Why Hubble is being dropped
		With Hubble's replacement - the James Webb Telescope - not due in orbit until 2012 at the earliest, he hoped that Hubble could survive until the handover.
		The plan was that on a follow-on shuttle visit a propulsion module would be attached to Hubble to bring it down in a predictable way, on to an uninhabited region of the Earth.
		Although some of Hubble's scientists are reported to be preparing job applications at other institutes, there is still a lot of science Hubble can do.
	news.bbc.co.uk /2/hi/science/nature/3406079.stm (688 words)

	The European Homepage For The NASA/ESA Hubble Space Telescope - News Archive
		Both images reveal some galaxies that are too faint to be seen by ground-based telescopes, or even in Hubble's previous faraway looks, called the Hubble Deep Fields (HDFs), taken in 1995 and 1998.
		Installed in during the last servicing mission to the Hubble Space Telescope, the ACS has twice the field of view and a higher sensitivity than the older workhorse camera, the Wide Field Planetary Camera 2, installed during the 1993 servicing mission.
		Animations of the discovery and general Hubble Space Telescope background footage are available from http://www.spacetelescope.org/bin/videos.pl?searchtype=news&string=heic0406.
	www.spacetelescope.org /news/html/heic0406.html (1140 words)

	NASA - Hubble Digs Deeply, Toward Big Bang
		Called the Hubble Ultra Deep Field, the view represents the deepest portrait of the visible universe ever achieved by humankind.
		The Ultra Deep Field observations represent a narrow, deep view of the cosmos.
		Just like the previous Hubble Deep Fields, the new data are expected to galvanize the astronomical community and lead to dozens of research papers that will offer new insights into the birth and evolution of galaxies.
	www.nasa.gov /vision/universe/starsgalaxies/hubble_UDF.html (773 words)

	ESA Science & Technology: XMM-Newton's new vision of a classic 'Deep Field'
		Keyhole views like the Hubble Deep Field, far from the galactic plane and therefore uncluttered by foreground stars, allow scientists to travel back in time, observing the early formation of galaxies just after the Universe's birth in the Big Bang.
		XMM-Newton's Deep Field North is the result of four observations carried out in May and June this year.
		The field of view of the EPIC cameras on XMM-Newton, is a little under half a degree across, about the diameter of the Full Moon.
	sci.esa.int /science-e/www/object/index.cfm?fobjectid=28789 (1253 words)

	Marcus Martins - Hubble - Telecópio - Telescope - PY4SM - PY2DD - ZW4SM - Astronomia - Astronomy - Radio (Site not responding. Last check: 2007-10-21)
		New detailed images from NASA's Hubble Space Telescope show a "late-blooming" galaxy, a small, distorted system of gas and stars that still appears to be in the process of development, even though most of its galactic cousins are believed to have...
		NASA's Hubble Space Telescope is witnessing a grouping of galaxies engaging in a slow dance of...
		In Visions of Heaven, we see their full range, from the stellar nurseries where young stars are hatched out of immense clouds of gas and dust, to the magnificent remains, glowing across billions of miles, of once-mighty stars.
	www.py4sm.hpg.com.br /hubble-page.htm (447 words)

	The NOAO Deep Wide-Field Survey
		It was designed primarily for the study of the existence and evolution of large scale structures at redshifts z>1 as sampled by diverse populations of objects.
		These fields were selected for their low IRAS cirrus emission, low N(HI), and the eventual public availability of radio data from the VLA FIRST Survey for these fields.
		The Boötes field was completely covered in K-band and partially covered in J and H. The Cetus field IR observations were only partially completed.
	www.noao.edu /noao/noaodeep (1047 words)

	APOD: June 7, 1998 - The Hubble Deep Field (Site not responding. Last check: 2007-10-21)
		APOD: June 7, 1998 - The Hubble Deep Field
		Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
		Hubble Space Telescope at a single spot for 10 days accumulating and combining many separate exposures.
	antwrp.gsfc.nasa.gov /apod/ap980607.html (143 words)

	Hubble Ultra Deep Field (Site not responding. Last check: 2007-10-21)
		Below are links to three versions of the Ultra Deep Hubble Field that was released today (March 10, 2004).
		Within the Hubble Ultra Deep Field there are approximately 10,000 discrete objects.
		this ultra deep field is quite consistent with what was seen in the original Hubble Deep Field in the sense that the angular size distribution objects is overwhelmed by small angular size objects.
	zebu.uoregon.edu /hudf (490 words)

Try your search on: Qwika (all wikis)