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Artists' concept of the surface of the white dwarf star H1504+65, believed to have somehow expelled all its hydrogen and all but a very small trace of its helium, leaving an essentially bare stellar nucleus with a surface of 50 percent oxygen and 50 percent carbon. When this star cools, it may have a carbon atmosphere, like the stars newly found by University of Arizona, Canadian and French astronomers.(Illustration credit: M.S. Sliwinski and L. I. Slivinska of Lunarismaar) (Copyright photo by Sliwinski, M.S. and Sliwinska, L.I.)

Astronomers Discover Stars with Carbon Atmospheres
November 21, 2007; UA News, Lori Stiles

This photo shows the nose of a high-altitude WB57, an aircraft with a precise pointing system that NASA developed to photograph damage to space shuttle tiles. Plans are to demonstrate a prototype remote sensing instrument built at The University of Arizona by flying the system on the two WB57s. A transmitter on one aircraft will send a signal through the atmosphere. A receiver on the other aircraft will pick up the signal after it has recorded atmospheric information.(Photo: Courtesy of Robert Kursinski)

Researchers to Build, Test Advanced Spaceborne Climate-Monitoring Instrument
November 5, 2007; UA News, Lori Stiles

Jets of molecules, indicated by red and blue arrows, flow from the supergiant star VY Canis Majoris photographed by the Hubble Space Telescope. The blue arrow (lower right) shows the slight deviation of the “squirt” flow from the direction towards us. The curved nebulous tail (CNT) and red arrow (upper right) show the fan of material flowing away from us and to the side. The white arrows and transparent circle show the general spherical flow of matter outward. (Illustration: UA Steward Observatory)

Arizona Radio Observatory Team Discovers Supergiant Star Spews Molecules Needed for Life
July 3, 2007; UA News, Lori Stiles

See article for comparison of images taken with SDI on and off. A number of fake planets (at separations of 0.55", 0.85", and 1.15" from the star) were added to this data, which was then analyzed first using the SDI method and, second, using standard adaptive optics techniques. The simulated planets, each seen as a pair of black-and-white dots 33 degrees apart in the SDI image, are easily detected yet are 10,000 times fainter than the central star in the standard adaptive optics analysis.

Benchmark Survey Shows that Giant Outer Extrasolar Planets Are Rare
June 5, 2007; UA News, Lori Stiles

Steward Observatory's Ray White Jr., with the 21-inch Campus Station telescope.

UA Campus Telescope To Be Renamed for Raymond E. White Jr.
April 25, 2007; UA News, Lori Stiles

The Large Binocular Telescope at 10,500 feet on Mount Graham, after snowfall in January 2007. The telescope began its science demonstration program in January. (Photo: R. Pogge)

LBT Captures Extremely Faint Light With Its First Mirror and Camera
March 8, 2007; UA News, Lori Stiles

This is an artist's concept of a hypothetical 10-million-year-old star system. The bright blur at the center is a star much like our sun. The other orb in the image is a gas-giant planet like Jupiter. Wisps of white throughout the image represent traces of gas. (Image credit: NASA/JPL-Caltech/T. Pyle, SSC)

Gas Giants Jump Into Planet Formation Early
February 1, 2007; UA News, University Communications

 

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