Wednesday, November 16, 2005

In Astronomy News

Lori Allen, one of the 6 members of my graduate class as UMass, made the NYT Science section this week with images from her telescope, Spitzer.

The astronomers, led by Lori E. Allen of the Harvard-Smithsonian Center for Astrophysics, say the towering mountains of the new image probably represent the densest, most fecund remnants of a larger, cloud. It is being eroded by radiation and winds of particles from a ferociously bright star just out of the top of the picture.

Nestled within the dusty pillars are hundreds of embryonic stars. But Spitzer's detectors are designed to see infrared, or "heat," radiation right through the dust, allowing astronomers to study the cloaked stars, which Dr. Allen described as "offspring" of the big star.

"The Sun could have formed in such a cluster, since many stars form in clusters," Dr. Allen said in an e-mail message, explaining that pressure created by the star could compress gas in the cloud, bringing about the formation of new stars.

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