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Topic: CHARA array


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In the News (Thu 16 Feb 12)

  
  Astronomers: 'Bullet star' shines 350 times brighter than the sun
The CHARA array, located atop Mt. Wilson in southern California, is among a handful of new "super" instruments composed of multiple telescopes optically linked to function as a single telescope of enormous size.
A precise combination of the light from the individual telescopes allows the CHARA array to behave as if it were a single telescope with a mirror 330 meters across.
The CHARA array was constructed with funding from the National Science Foundation, Georgia State, the W. Keck Foundation, and the David and Lucile Packard Foundation.
www.eurekalert.org /pub_releases/2005-01/gsu-as011805.php   (868 words)

  
 SPACE.com -- CHARA Array of Optical Telescopes Sets New Benchmark
CHARA scientists say they'll be able to see things with 300,000 times the resolution of the human eye and more than 50 times better than the Hubble Space Telescope, at least for bright objects.
CHARA is expected to allow astronomers to measure and weigh stars, including pairs of stars known as binaries, and calculate distances to them with a precision not previously possible.
On Thursday, Sept. 20, a team of CHARA scientists led by Theo ten Brummelaar succeeded in detecting "interference fringes" from starlight collected by the two most-separated telescopes of the array.
www.space.com /scienceastronomy/astronomy/chara_update_010921.html   (629 words)

  
 Photonics.com Printer Friendly Article
Using their recently completed array of optical telescopes atop California's Mount Wilson, the CHARA astronomers have measured Regulus' size and shape, the temperature difference between its poles and equator and the orientation of its spin axis.
Indeed, CHARA researchers have found that Regulus is five times brighter at the poles, where the temperature is 27,200 degrees Fahrenheit, than it is at the equator, where the temperature is 18,000 degrees Fahrenheit.
The array itself was constructed with funding from the National Science Foundation (NSF), Georgia State, the W. Keck Foundation and the David and Lucile Packard Foundation.
www.photonics.com /printerFriendly.aspx?contentID=57682   (537 words)

  
 astronomy
CHARA research activities center around the theme of high spatial resolution imaging of astronomical objects using techniques that attain image detail significantly beyond that normally obtained at large telescopes.
CHARA houses an on-going program of binary star speckle interferometry in which GSU-developed instrumentation is routinely used at major telescopes in both the northern and southern hemispheres.
The flagship program of CHARA centers upon the design and construction of the CHARA Array, an optical array of five 1-meter aperture telescopes whose light will be interferometrically combined to synthesize the resolving capability of a single telescope 600-meters across.
www.phy-astr.gsu.edu /grad/astr.html   (671 words)

  
 CNN.com - Studying Earth by looking at stars - Aug 8, 2006
The CHARA telescopes, on top of Mount Wilson in southern California, are among a handful of the most powerful in the world.
CHARA links six independent 40-inch telescopes as if they were one powerful telescope, spanning a thousand feet across.
The array of telescopes allows scientists to study bright stars with a degree of detail that would otherwise be possible only with one enormous instrument.
www.cnn.com /2006/TECH/08/08/explorers.mcalister/index.html   (648 words)

  
 Chara - Moviefone
CHARA research is focused on the development of astronomical long-baseline...
The Center operates the CHARA Array, a six-telescope optical/infrared...
The flagship project of Georgia State University's Center for High Angular Resolution Astronomy (CHARA) is its optical/interferometric array of six...
movies.aol.com /celebrity/chara/239319/main   (91 words)

  
 [No title]
The Array is capable of resolving details as small as 200 micro-arcseconds, equivalent to the angular size of a nickel seen from a distance of 10,000 miles.
In terms of the number and size of its individual telescopes, its ability to operate at visible and near infrared wavelengths, and its longest baselines of 330 meters, the CHARA Array is arguably the most powerful instrument of its kind in the world.
This facility is permitting GSU faculty, staff and students to participate in observing activities at the Array on Mt. Wilson, enabling the remote control of all CHARA facilities from across the country.
www.chara.gsu.edu /CHARA/array.html   (1066 words)

  
 SPACE.com -- Telescope Array To Unlock Secrets from Duplicitous Stars
CHARA's ability will be akin to looking from New York, across America and the Pacific Ocean, and spotting a nickel in the middle of Siberia.
The CHARA array "should be a very good system, and it should tell us a great deal about the newer stars," said Nobel laureate Charles Townes, who operates a similar but portable interferometer, also atop Mount Wilson, and recently used it to learn that some older stars, called red giants, may be
CHARA is funded by the National Science Foundation, the W.M. Keck Foundation, the David and Lucile Packard Foundation, and Georgia State University, which will operate it.
www.space.com /scienceastronomy/astronomy/chara_array_010717-2.html   (1146 words)

  
 Newswise
The central facility houses optics that combine the light to an accuracy of one-millionth inch using the techniques of optical interferometry, enabling the array of six telescopes to work together as a single telescope 400 meters in diameter.
This will allow the CHARA Array to see detail in astronomical objects as small as one ten-millionth of a degree in angular extent.
When fully operational in early 2001, the CHARA Array will be among the world's most powerful instruments for measuring details of the surfaces of stars and their nearby environments.
www.newswise.com /articles/view/?id=CHARA.GST   (414 words)

  
 SkyTonight.com - News from SkyTonight - Vega Mystery Solved;
Red Dwarf Mystery Grows
The two CHARA telescopes that are farthest apart are separated by 330 meters (1,083 feet), which gives the array nearly the resolution of a hypothetical 330-meter telescope.
CHARA can resolve details as small as 200 microarcseconds — about the angular size of a nickel seen from 1,600 kilometers (1,000 miles) away.
CHARA's ability to measure stellar diameters may have closed the books on the Vega mystery, but it has thrown stellar models for a loop regarding red dwarfs: small, cool, dim stars that make up about three-fourths of all the stars in our galaxy.
skytonight.com /news/3311011.html?page=1&c=y   (885 words)

  
 The Very Best Telescope - - science news articles online technology magazine articles The Very Best Telescope   (Site not responding. Last check: 2007-10-10)
It is called the CHARA (Center for High Angular Resolution Astronomy) Array, and its ability to see into space with incredible detail—50 times finer than any single-mirror telescope ever built—promises to bring the night sky into incredibly sharp focus.
With CHARA, the beams of light from the six individual telescopes must travel through a byzantine network of tubes and mirrors that lead to a computerized detector in the control room.
The array of six telescopes includes twin 10-meter (33 feet) instruments—the largest single-mirror telescopes in the world—that will help it examine such faint objects in the northern sky as accretion disks around fl holes and protoplanetary disks around young stars.
www.discover.com /issues/oct-02/features/feattelescope   (3548 words)

  
 Powerful telescope array will study the stars
The CHARA array is one of the world's most powerful optical interferometers, able to resolve details 200 times finer than is possible with the Hubble Space Telescope.
McAlister designed the array to study the basic attributes of stars--their mass, diameter and temperature--in an effort to discover how stars are formed and how they derive their energy.
The CHARA array consists of six one-meter telescopes within a 400-meter-diameter circle and provides an angular resolution comparable to a telescope 400 meters in diameter.
www.eurekalert.org /pub_releases/2000-10/NSF-Ptaw-0310100.php   (282 words)

  
 The Center for High Angular Resolution Astronomy
CHARA research is focused on the development of astronomical long-baseline optical/infrared interferometry and the application of interferometry to high resolution observations leading to the determination of the astrophysical properties of stars.
CHARA also houses the administrative offices of the Mount Wilson Institute, a 501(c)(3) non-profit corporation which operates Mount Wilson Observatory under an agreement with the Carnegie Insitution of Washington.
CHARA research is supported by the National Science Foundation and the offices of the Dean of the College of Arts and Sciences and the Vice President for Research at Georgia State University.
www.chara.gsu.edu /CHARA/index.html   (268 words)

  
 Leading property developers in Cyprus - Stchara Developers
Chara Developers is among the leading development companies in Cyprus.
Based in Nicosia, St. Chara was established in 1986 with a commitment to develop reliable residential and holiday properties.
Our major commitment is to achieve continuous improvements in all our new constructions in order to satisfy the present as well as the future needs of our customers.
www.stcharadevelopers.com /en/index.html   (150 words)

  
 MSC -- Michelson Postdoctoral Fellowship Recipients
The Center for High Angular Resolution Astronomy (CHARA) interferometric array is a state-of-the-art optical/infrared interferometer comprising of six one-meter telescopes, with baselines spanning hundreds of meters on a Y-shaped array.
In collaboration with Georgia State University, the University of Michigan is developing an infrared imaging beam combiner capable of exploiting the full potential of the multiple baselines of the CHARA array.
Following this exploration a second collaboration with the CHARA team (in collaboration with Theo ten Brummelaar, Steve Ridgway and Hall McAlister) will explore instrumental solutions for beam combination of a 6 telescope array which is a real technical challenge.
msc.caltech.edu /michelson/postdocRecipients.html   (3792 words)

  
 RTLinux User Projects: The CHARA Array   (Site not responding. Last check: 2007-10-10)
When fully operational late in 2001, the Array will be capable of resolving details as small as 200 micro-arcseconds, equivalent to the angular size of a nickel seen from a distance of 10,000 miles.
In terms of the number and size of its individual telescopes, its ability to operate at visible and near infrared wavelengths, and its longest baselines of 350 meters, the CHARA Array is arguably the most powerful instrument of its kind in the world.
The CHARA Array control system is a distributed real-time system based on RT-Linux using a modified scheduler that runs from a GPS based distributed time signal.
rtlinux.lzu.edu.cn /projects/7106.81530181319.html   (261 words)

  
 Armchair World: Mount Wilson Observatory - The Hooker Telescope and the CHARA array.
It is the home of Georgia State University's CHARA Telescope Array.
While still under construction, the array when completed will consist of six telescopes within a 1300 foot circle with vacuum pipes bringing the light from each telescope to a central combining building.
The CHARA array is scheduled to be operational in early 2001.
www.armchair.com /escape/mtwilson/mwilson1.html   (786 words)

  
 [51.04] Science with the CHARA Array   (Site not responding. Last check: 2007-10-10)
The six one-meter aperture light-collecting telescopes are configured in a non-redundant Y-shaped array with two telescopes on each arm of the Y. The 15 available baselines range from 34 to 354 meters.
The array is anticipated to have sufficient sensitivity to permit coverage of much of the HR diagram, and our group has particular interests in stars at the extrema of the main sequence as well as evolved stars.
The CHARA Array has been funded by the National Science Foundation, Georgia State University, the W.M. Keck Foundation, and the David and Lucile Packard Foundation.
www.aas.org /publications/baas/v33n2/aas198/121.htm   (229 words)

  
 Astromart News - Rapidly Spinning Star Vega has Cool Dark Equator
With a maximum baseline of 330 meters (1,083 feet), the CHARA Array is capable of resolving details as small as 200 micro-arcseconds, equivalent to the angular size of a nickel seen from a distance of 10,000 miles.
The CHARA Array fed the starlight of Vega to the Fiber Linked Unit for Optical Recombination (FLUOR) instrument, developed by the Laboratoire d’Etudes Spatiales et d’Instrumentation en Astrophysique of the Observatoire de Paris.
The CHARA Array is operated by the Center for High Angular Resolution Astronomy, Georgia State University, Atlanta, GA. Additional support comes from the National Science Foundation, the Keck Foundation and the Packard Foundation.
www.astromart.com /news/news.asp?news_id=442   (3364 words)

  
 CHARA array - Wikipedia, the free encyclopedia
The CHARA Array is an optical astronomical interferometer operated by The Center for High Angular Resolution Astronomy (CHARA) of the Georgia State University (GSU).
CHARA is the World's highest angular resolution telescope at near-infrared wavelengths.
The light beams travel through vacuum tubes and are combined optically, requiring a building 100 meters long with movable mirrors to keep the light in phase as the earth rotates.
en.wikipedia.org /wiki/CHARA_array   (271 words)

  
 Session AB - Astrophysical Facilities and Instrumentation for the 21st Century.   (Site not responding. Last check: 2007-10-10)
The telescopes of the "CHARA Array" have apertures of 1 meter and are dispersed in a Y-shaped configuration with maximum baseline of 350 meters.
The Array will be applied to a wide variety of problems in stellar astrophysics including the determination of stellar radii, masses, distances, luminosities, and temperatures.
The CHARA Array is funded by Georgia State University, the National Science Foundation, the W.M. Keck Foundation, and the David and Lucile Packard Foundation.
flux.aps.org /meetings/YR99/SES99/abs/S110.html   (501 words)

  
 Emory Physics | Colloquium Oct. 24th, 2003
The Array consists of six 1-m aperture telescopes arranged in a Y-shaped configuration yielding interferometric baselines ranging from 31 to 330 meters; the latter providing the longest baseline andhence highest resolution of any operational interferometer in the world.
Construction of the Array began in 1996 and commissioning scientific observations were initiated in 2002.
Funding for the CHARA Array was provided by the National Science Foundation, the W.M. Keck Foundation, the David and Lucile Packard Foundation and Georgia State University.
www.physics.emory.edu /colloquia-archive/031024_McAlister.html   (190 words)

  
 11-02-06   (Site not responding. Last check: 2007-10-10)
The CHARA Array is an optical/IR interferometric array located on the grounds of Mt. Wilson Observatory in southern California and owned and operated by Georgia State University.
All six telescopes are installed and fully functional, and the facility is now routinely carrying out scientific observations in a variety of specific areas relevant to the general theme of measuring fundamental astrophysical parameters of stars.
CHARA research is sponsored by the National Science Foundation and the Georgia State University College of Arts and Sciences.
www.optics.arizona.edu /Colloquium/11-02-06.htm   (363 words)

  
 Mount Wilson Observatory
The Center for High Angular Resolution Astronomy (CHARA) of Georgia State University has built the largest interferometer telescope array in the world for the study of objects in visible wavelengths -- the light that our eyes see.
Dedicated on October 4, 2000, the ground-breaking CHARA array will be used for a variety of studies.
New CHARA Array discoveries in the news (1/11/06)
www.mtwilson.edu /sci/index.php   (961 words)

  
 News - Egg-shaped Regulus spins rapidly
The array consists of six telescopes, each containing a light-collecting mirror one metre in diameter.
The telescopes are arranged in the shape of a "Y," with the outermost telescopes located about 200 metres from the centre of the array.
The CHARA array was constructed with funding from the National Science Foundation, Georgia State, the W.
www.astronomynow.com /news/050121_regulus.shtml   (1102 words)

  
 Telescope - Wikipedia, the free encyclopedia
Optical interferometer arrays and arrays of radio telescopes were developed much more recently.
The Very Large Telescope array (VLT) is currently (as of 2002) the record holder for total collecting area in an array of telescopes, with four telescopes each 8 meters in diameter.
The CHARA (Center for High Angular Resolution Astronomy) array is the telescope array that can currently (as of 2005) produce the highest resolution images at near-infrared wavelengths.
en.wikipedia.org /wiki/Telescopes   (2171 words)

  
 ScienceStorm - The CHARA Array - Award #9414449
The CHARA Array will consist of five 1-m aperture telescopes in a Y-shaped array contained within a 400 m diameter circle.
The Array will be applicable to problems in all areas of contemporary astronomy, especially if it is later equipped with adaptive optics and laser beacons.
The CHARA Array will meet a critical goal of the Bachall Committee for ground based interferometry for the 1990's and provide a unique and powerful new astronomical facility for the nation.
www.sciencestorm.com /award/9414449.html   (221 words)

  
 Mail Tribune News - Erickson helps humans see into heavens
The array of telescopes, scheduled to be operational in January 2000, is expected to produce the sharpest picture of the stars ever achieved -- images up to 100 times clearer than those provided by the Hubble Space Telescope.
The project is being conducted by Georgia State University's Center for High Angular Resolution Astronomy (CHARA) and is known as the CHARA array.
"If you put a baseball stadium on the moon, with the CHARA array you could tell who was pitching and who was at bat," Dr. Harold McAlister, CHARA's director, says in a news release posted on the project's Web site (www.chara.gsu.edu).
www.mailtribune.com /archive/99/jan99/12299n3.htm   (555 words)

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