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	Australia Telescope Compact Array
		The Australia Telescope Compact Array is a radio telescope at the Paul Wild Observatory, twenty five kilometres west of the town of Narrabri in Australia.
		The telescope is an array of six identical 22 metre diameter dishes, which commonly operate in aperture synthesis mode to produce radio images.
		The array is frequently operated together with the sixty four metre dish at the Parkes Observatory and a single dish at Mopra (near Coonabarabran), to form a very long baseline interferometry array.
	www.photonicsknowledge.com /search/Australia_Telescope_Compact_Array (205 words)

	Australia Telescope National Facility (ATNF)
		A set of eight radio telescopes that can be operated individually or as group.
		A further 22-m antenna, known as the Mopra Telescope, is located near Coonabarabran.
		The Australia Telescope also includes the 64-m radio telescope at the Parkes Observatory, which has been in use 1961.
	www.daviddarling.info /encyclopedia/A/ATNF.html (150 words)

	Narrabri: Australia Telescope Compact Array (NSW) (Profile - Location)
		The Australia Telescope Compact Array is one of the world’s premier radio astronomy facilities.
		The Australia Telescope Compact Array is one of the world’s most advanced radio telescopes.
		The public is welcome to visit and see both the telescope’s dishes and astronomy exhibits in and around the observatory visitors centre.
	www.csiro.au /places/ps20i.html (497 words)

	Australia Telescope Compact Array - Wikipedia, the free encyclopedia
		The Australia Telescope Compact Array is a radio telescope at the Paul Wild Observatory, twenty five kilometres west of the town of Narrabri in Australia.
		The telescope is an array of six identical twenty two meter diameter dishes, which commonly operate in aperture synthesis mode to produce radio images.
		The array is frequently operated together with the sixty four meter dish at the Parkes Observatory and a single dish at Mopra (near Coonabarabran), to form a very long baseline interferometry array.
	en.wikipedia.org /wiki/Australia_Telescope_Compact_Array (166 words)

	Australia Telescope
		The Australia Telescope Compact Array (ATCA), at the Narrabri Observatory, is an array of six 22-m antennas used for radio astronomy.
		The Compact Array, located at the Paul Wild Observatory, near Narrabri, is the heart of the telescope.
		A visit to the Australia Telescope Compact Array website will show what is happening at the telescope including up to the minute observing updates from the "ACTA Live" page.
	www.bintel.com.au /AustScope.html (602 words)

	Swinburne University SKA simulation group
		The Australia Telescope Compact Array (ATCA) has been used in support of the VLBI Space Observatory Programme (VSOP) space VLBI mission, to monitor the total and polarised flux densities of 202 objects that make up 83% of the VSOP all-sky Survey of compact extragalactic radio sources south of +10°.
		The primary goal of the ATCA observations is to provide information on the total and polarised emission from the compact components in these sources, for correlation with parameters obtained from VSOP imaging observations.
		As an illustration of the scientific value of the ATCA data we undertake a comparison of the properties of the gamma-ray loud and gamma-ray quiet AGN in the southern component of the VSOP Survey sample, finding that in a flat-spectrum sub-sample the gamma-ray loud AGN are more variable than the gamma-ray quiet AGN.
	astronomy.swin.edu.au /ska/Research/radio_interferometry.html (810 words)

	UNSW School of Physics Annual Report 2003
		However, the southern hemisphere has lacked a millimetre array until now: the CSIRO’s Australia Telescope Compact Array (ATCA), previously operating only at wavelengths greater than 3 cm, is being equipped with state-of-the-art 3-mm and 12-mm receiver packages.
		When this upgrade is complete in mid-2004, the ATCA will be a superb instrument for studying star formation in the Milky Way and its satellite galaxies (the Magellanic Clouds), all of which are best viewed from the southern hemisphere.
		Meanwhile, the Mopra Telescope, itself the subject of a major upgrade, will soon be able to efficiently scan the sky to identify sources for high-resolution ATCA follow-up.
	www.phys.unsw.edu.au /ANNUAL_REPORTS/2003/research9.html (492 words)

	Array (Site not responding. Last check: 2007-10-26)
		An interferometer consists of two separate telescopes that combine their signals almost as if they were coming from separate portions of a telescope as big as the two telescopes are apart.
		An array is the name used when the interferometer has more than two elements, that is, when more than 2 telescopes are used together to form the image.
		The resolution of an array approaches that of a telescope of diameter equal to the largest separation between its individual elements (telescopes).
	astrosun.tn.cornell.edu /academics/courses/astro201/array.htm (113 words)

	CSIRO Telescope Sees Supernova At Short Wavelengths
		The Australia Telescope Compact Array is a set of six radio-receiving dishes near Narrabri, NSW, that work together as one world-class radio telescope to make pictures of the sky.
		The Australia Telescope is the most advanced radio telescope in the south and has been tracking the supernova's remains since 1990, when the cloud of hot gas produced by the explosion began to glow with radio waves.
		Australia Telescope images of the expanding supernova remnant at a wavelength of 3 cm (in press in Publications of the Astronomical Society of Australia)
	unisci.com /stories/20014/1121014.htm (438 words)

	Re: How does the Very Large Array (Telescope) work?
		The Very Large Array is a radio interferometer located on the Plains of San Agustin, about 150 km southwest of Albuquerque, NM, and is operated by the National Radio Astronomy Observatory for the National Science Foundation.
		The surprising answer is that most of the telescope's mirror can be covered, yet the telescope would retain essentially all of its angular resolution (provided the telescope is covered randomly; if only the outer portions of the mirror are covered, this is equivalent to making the telescope smaller).
		Australia Telescope Compact Array, the Atacama Large Millimeter Array, the
	www.madsci.org /posts/archives/jul2001/994005901.As.r.html (844 words)

	Radio Astronomy Resources
		The synthesis telescope is particularly suited to comprehensive studies of the interstellar medium, extended Galactic nebulae and star-forming regions, and of nearby galaxies.
		The original low frequency telescope was superseded in 1976 by a 14-m diameter radome-enclosed antenna for use at high radio frequencies (mm wavelengths), built primarily to study the physics and chemistry of interstellar clouds, circumstellar envelopes, planetary atmospheres, and comets.
		The telescope is steered by mechanical rotation of the cylindrical paraboloids about their long axis, and by phasing the feed elements along the arms.
	cdsweb.u-strasbg.fr /astroweb/radio.html (7277 words)

	Australia's biggest telescopes
		Radio telescopes are good for studying objects in space that emit radio waves, such as jets of matter from fl holes, blast waves from exploding stars, and interstellar gas clouds.
		Any telescope needs a mirror or dish which is smooth to an accuracy of about 1/10 of the wavelength of the radiation it is looking at.
		The Australia Telescope Compact array can combine signals from its six dishes to get images as sharp as would have been obtained by a single dish 6km across (though the sensitivity to really weak radio waves is still less than that of the single Parkes telescope).
	www.ausgo.anu.edu.au /public/biggest.html (593 words)

	H I Clouds in LMC
		Using emission and absorption spectra obtained by combining the Australia Telescope Compact Array and the Parkes Telescope, we have minimized errors due to beam blending.
		The Australia Telescope is funded by the Commonwealth of Australia for operation as a National Facility funded by CISRO.
		The zero spacing flux densities for the ATCA data were determined from a map of the region made with the Parkes Telescope.
	ecf.hq.eso.org /~ralbrech/sepdec97apjl/975218.html (2819 words)

	Non-U.S. Radio Astronomy Observatories
		One or more of the antennas of the Compact Array may be linked to the 22-m paraboloid at Mopra near Coonabara or the Parkes telescope to form a very long baseline array with a maximum diameter equivalent to a 320-km dish.
		Telescope: 34 parabolic dishes, 16 of which are in a central cluster of 1 km x 1 km; the rest are along 3 arms of a Y with 6 antennas in each 14-km-long arm
		Telescope: Array with 14 steerable paraboloids (of which 4 are movable and 10 are fixed) on an E-W baseline, operating on the principle of rotational aperture synthesis.
	www.nas.edu /bpa1/NonUS_Radio_Astronomy_Observatories.htm (2442 words)

	UNSW School of Physics Annual Report 2003
		The box shows where we are focussing follow-up efforts using the Australia Telescope Compact Array to make high-resolution maps of ammonia emission from these star-forming clouds.
		The main project, in collaboration with Phillip Myers of Harvard University is to collect a large dataset on medium-mass protostars, in order to understand their evolution and role in galactic ecology.
		To this end a number of observing programmes were awarded time on Australian and international telescopes in 2003 (Mopra, the Australia Telescope’s Compact Array, and the Swedish-ESO Submillimetre Telescope).
	www.phys.unsw.edu.au /ANNUAL_REPORTS/2003/research16.html (265 words)

	Telescope observing schedules
		Australia Telescope Compact Array, Parkes, MOPRA - Schedules
		The Laboratories are home to the Lovell Telescope and the MERLIN & VLBI National Facility which is operated by the University on behalf of PPARC.
		This is a PDF file of the current schedule of the University of Hawaii 2.2m Telescope.
	www.cv.nrao.edu /fits/www/yp_schedule.html (262 words)

	The Australia Telescope National Facility (Site not responding. Last check: 2007-10-26)
		The Australia Telescope National Facility (ATNF) is run by CSIRO.
		It operates the Australia Telescope, a group of radio telescopes distributed throughout New South Wales.
		The Australia Telescope consists of the 64m Parkes dish, a group of six 22 m dishes in Narrabri, the ATCA (Australia Telescope Compact Array) and a further 22 meter dish near Coonabarabran.
	www.astro.uni-bonn.de /~webgk/atnf.html (89 words)

	Divisions
		The Australia Telescope National Facility is a Division of CSIRO that operates and develops the Australia Telescope as a national research facility.
		Our research focusses on issues affecting Australia and the world, and we provide a range of scientific and consulting services that are underpinned by this research.
		The combined resources of Australia’s and New Zealand’s pre-eminent forest research organisations have united to form a world-leading joint venture, known as Ensis.
	www.csiro.au /org/Divisions.html (473 words)

	Parkes Observatory - Wikipedia, the free encyclopedia
		The Parkes Observatory is a radio telescope observatory, 20 kilometres north of the town of Parkes, New South Wales, Australia.
		The primary observing instrument is the 64-metre Parkes Radio Telescope, which is the second largest movable dish telescope in the Southern Hemisphere, and one of the first large movable dishes in the world (DSS-43 at Tidbinbilla was extended from 64 m to 70 m in 1987, surpassing Parkes [1].).
		The 64m dish is frequently operated together with the Australia Telescope Compact Array at Narrabri and a single dish at Mopra, to form a very long baseline interferometry array.
	en.wikipedia.org /wiki/Parkes_Observatory (554 words)

	University of California, San Diego: External Relations: News & Information: News Releases : Science
		Kedziora-Chudczer and Jauncey recorded the fluctuations from PKS 0405-385 in 1996, at the Compact Array of the Australia Telescope in Northern New South Wales.
		By focusing on the rapid (intra-day) fluctuations of the radio waves from PKS 0405-385, Rickett and team were able to come up with a better estimate of its size viewed from earth, finding it no greater than 30 micro arc seconds.
		This angular size is 50 times smaller than can be resolved by the biggest of earth's radio telescopes and implies a linear size at origin of only one light year across.
	ucsdnews.ucsd.edu /newsrel/science/Quasars.htm (692 words)

	Australia Telescope Compact Array
		The Australia Telescope Compact Array (ATCA), at the Paul Wild Observatory, is an array of six 22-m antennas used for radio astronomy.
		It is located about 25 km west of the town of Narrabri in rural NSW (about 500 km north-west of Sydney).
		It is operated by the Australia Telescope National Facility, a division of CSIRO, which also includes the ATNF Headquarters at Marsfield in Sydney, the Parkes Observatory and the Mopra Observatory near Coonabarabran.
	www.narrabri.atnf.csiro.au /index.html?print (84 words)

	Australia Telescope National Facility
		It is administered by the CSIRO, Australia's national scientific research organisation and is funded by the Australian Government.
		The ATNF operates the Australia Telescope which consists of the Compact Array at Narrabri and the Parkes and Mopra radio telescopes.
		These telescopes can be used together as a long baseline array for use in Very Long Baseline Interferometry.
	www.atnf.csiro.au (104 words)

	Universe Today - Biggest Stars Make the Biggest Magnets
		They used the Australia Telescope Compact Array and Parkes radio telescope in eastern Australia to watch a powerful magnetar - an exotic neutron star with a magnetic field one quadrillion times more powerful than the Earth's field, which releases X-rays and gamma radiation.
		They found clues in the surrounding nebula that indicate that the magnetar used to be a star with 30-40 times the mass of the Sun.
		The astronomers base their conclusions on data taken with CSIRO's Australia Telescope Compact Array and Parkes radio telescope in eastern Australia.
	www.universetoday.com /am/publish/biggest_stars_magnets.html (919 words)

	Hubble Heritage
		James Higdon is a Research Associate with the Spitzer Space Telescope Infrared Spectrograph team at Cornell, where he has worked since 2001.
		He has held research positions at NRAO (Jansky Fellow), the Australia Telescope Compact Array, and the Kapteyn Astronomical Institute in the Netherlands.
		His interest in astronomy began at the age of 6 when his mother won a 3.5" reflecting telescope in a raffle.
	heritage.stsci.edu /2004/15/bio/bio_primary.html (187 words)

	Titanic collision seen in distant universe
		Using the Commonwealth Scientific and Industrial Research Organisation's (CSIRO) Australia Telescope, PhD student Melanie Johnston-Hollitt of the University of Adelaide has found 'wreckage' indicating that two giant clusters of galaxies have collided and merged.
		The research will be discussed today [Tuesday 6 Feb] at a workshop on galaxy clusters at the Australia Telescope National Facility headquarters in Sydney.
		"The Australia Telescope picture is the first high-resolution image of such a radio structure.
	www.eurekalert.org /pub_releases/2001-02/CA-Tcsi-0502101.php (701 words)

	Connell Wagner
		Positioned at Narrabri, NSW, the ATCA is a six antenna aperture synthesis radio telescope operating in the range of 1-100 GHZ.
		Comprising six highly accurate fully steerable antennas, five of which are transportable over a 3 km rail track, we carried out a concept design study for this complex scientific instrument to prove it could be built in Australia.
		We were then retained to design the antennas and administer and project manage the construction of the ATCA, which will also be the site for the Square Kilometer Array (SKA) demonstrators.
	www.conwag.com /projects/infrastructure/atca.htm (98 words)

	Gas Clouds Make New "Telescope"
		The phenomenon underlying the technique is confirmed in a recent paper [10 March] in the Astrophysical Journal by a team from the Australian research institution CSIRO, the University of Adelaide, and institutions in The Netherlands.
		The paper is based on observations by PhD student Ms Hayley Bignall (now at the Joint Institute for VLBI in Europe), made with the CSIRO Australia Telescope Compact Array radio telescope in eastern Australia.
		The Space Infrared Telescope Facility (SIRTF), carrying the Ball Aerospace cryogenic telescope assembly and two Ball-built science instruments, is scheduled to launch from Cape Canaveral, Fla., on April 18.
	www.spacedaily.com /news/telescopes-03d.html (970 words)

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