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Chandra Digest (June 11): AAS update

Status Report From: Harvard-Smithsonian Center for Astrophysics
Posted: Tuesday, June 11, 2002

Exciting Chandra results on elliptical galaxies & neutron stars were on display at the 200th American Astronomical Society (AAS) meeting, held in Albuquerque, NM, from June 2-6:

**1E 1207.4-5209:

X-rays Probe Gravitational Field Of A Neutron Star**

With NASA's Chandra X-ray Observatory, astronomers have detected features that may be the first direct evidence of the effect of gravity on radiation from a neutron star. This finding, if confirmed, could enable scientists to measure the gravitational field of neutron stars and determine whether they contain exotic forms of matter not seen on Earth. http://chandra.harvard.edu/photo/2002/1132/

**NGC 4697, NGC 4649, and NGC 1553:

Black Holes In Distant Galaxies Point To Wild Youth** Like 'flower power' tattoos on aging ex-hippy baby boomers, unexpectedly large numbers of neutron stars and black holes in elliptical galaxies suggest some of these galaxies lived through a much wilder youth. The discovery by NASA's Chandra X-ray Observatory may require a revision of how elliptical galaxies evolved. http://chandra.harvard.edu/press/02_releases/press_060402.html

NEW & NOTEWORTHY!

++ Major Milestones in X-ray Astronomy

In 1962, a team of scientists used a small X-ray detector to discover Scorpius X-1, the first source of X-rays outside our solar system. Forty years later, over 100,000 X-ray sources have been detected, the most distant of which is 13 billion light years from Earth. http://chandra.harvard.edu/chronicle/0202/40years/

++ All recent New & Noteworthy features are available at http://chandra.harvard.edu/new.html

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