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TOPIC: Balloon-borne observatory

Blobrana

L

Posts: 131433

Date: Oct 12 11:02 2008

RE: Balloon-borne observatory	Permalink

Professor Lewin takes us back to 1966 when Professor George Clark and he pioneered X-ray observations from balloon-borne telescopes at altitudes of 145,000 ft. Read more __________________

Blobrana

L

Posts: 131433

Date: May 14 16:36 2008

BESS-Polar spectrometer	Permalink

Title: Measurement of cosmic-ray low-energy antiproton spectrum with the first BESS-Polar Antarctic flight Authors: K. Abe, H. Fuke, S. Haino, T. Hams, A. Itazaki, K. C. Kim, T. Kumazawa, M. H. Lee, Y. Makida, S. Matsuda, K. Matsumoto, J. W. Mitchell, A. A. Moiseev, Z. Myers, J. Nishimura, M. Nozaki, R. Orito, J. F. Ormes, M. Sasaki, E. S. Seo, Y. Shikaze, R. E. Streitmatter, J. Suzuki, Y. Takasugi, K. Takeuchi, K. Tanaka, T. Yamagami, A. Yamamoto, T. Yoshida, K. Yoshimura The BESS-Polar spectrometer had its first successful balloon flight over Antarctica in December 2004. During the 8.5-day long-duration flight, almost 0.9 billion events were recorded and 1,520 antiprotons were detected in the energy range 0.1-4.2 GeV. In this paper, we report the antiproton spectrum obtained, discuss the origin of cosmic-ray antiprotons, and use antiprotons to probe the effect of charge sign dependent drift in the solar modulation. Read more (132kb, PDF) __________________

Blobrana

L

Posts: 131433

Date: Jan 11 20:57 2008

Balloon-borne observatory	Permalink

A balloon-borne telescope afloat in the stratosphere could offer a direct view of planets in other solar systems, says a team of researchers. If successful, the lofty scheme would deliver images of alien worlds impossible to see from the ground and all for a fraction of what it would cost to do the job from space. "It's one of those ideas that actually has a remote chance of making it off the drawing board" - team leader Wes Traub, a senior research scientist at NASA's Jet Propulsion Lab in Pasadena, California, US. Read more __________________

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