کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1771659 | 1020799 | 2006 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A measurement of time-averaged aerosol optical depth using air-showers observed in stereo by HiRes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
نجوم و فیزیک نجومی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Air fluorescence measurements of cosmic ray energy must be corrected for attenuation of the atmosphere. In this paper, we show that the air-showers themselves can yield a measurement of the aerosol attenuation in terms of optical depth, time-averaged over extended periods. Although the technique lacks statistical power to make the critical hourly measurements that only specialized active instruments can achieve, we note the technique does not depend on absolute calibration of the detector hardware, and requires no additional equipment beyond the fluorescence detectors that observe the air showers. This paper describes the technique, and presents results based on analysis of 1258 air-showers observed in stereo by the High Resolution Fly's Eye over a four year span.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Astroparticle Physics - Volume 25, Issue 2, March 2006, Pages 93-97
Journal: Astroparticle Physics - Volume 25, Issue 2, March 2006, Pages 93-97
نویسندگان
The High Resolution Fly's Eye Collaboration The High Resolution Fly's Eye Collaboration, R.U. Abbasi, T. Abu-Zayyad, J.F. Amann, G. Archbold, R. Atkins, K. Belov, J.W. Belz, S. BenZvi, D.R. Bergman, J.H. Boyer, C.T. Cannon, Z. Cao, B.M. Connolly,