دورية أكاديمية
Modeling atmospheric emission for CMB ground-based observations
| العنوان: | Modeling atmospheric emission for CMB ground-based observations |
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| المؤلفون: | Errard, J, Ade, PAR, Akiba, Y, Arnold, K, Atlas, M, Baccigalupi, C, Barron, D, Boettger, D, Borrill, J, Chapman, S, Chinone, Y, Cukierman, A, Delabrouille, J, Dobbs, M, Ducout, A, Elleflot, T, Fabbian, G, Feng, C, Feeney, S, Gilbert, A, Goeckner-Wald, N, Halverson, NW, Hasegawa, M, Hattori, K, Hazumi, M, Hill, C, Holzapfel, WL, Hori, Y, Inoue, Y, Jaehnig, GC, Jaffe, AH, Jeong, O, Katayama, N, Kaufman, J, Keating, B, Kermish, Z, Keskitalo, R, Kisner, T, Le Jeune, M, Lee, AT, Leitch, EM, Leon, D, Linder, E, Matsuda, F, Matsumura, T, Miller, NJ, Myers, MJ, Navaroli, M, Nishino, H, Okamura, T, Paar, H, Peloton, J, Poletti, D, Puglisi, G, Rebeiz, G, Reichardt, CL, Richards, PL, Ross, C, Rotermund, KM, Schenck, DE, Sherwin, BD, Siritanasak, P, Smecher, G, Stebor, N, Steinbach, B, Stompor, R, Suzuki, A, Tajima, O, Takakura, S, Tikhomirov, A, Tomaru, T, Whitehorn, N, Wilson, B, Yadav, A, Zahn, O |
| المساهمون: | Science and Technology Facilities Council (STFC), Imperial College Trust, Science and Technology Facilities Council 2006-2012 |
| بيانات النشر: | American Astronomical Society |
| سنة النشر: | 2015 |
| المجموعة: | Imperial College London: Spiral |
| مصطلحات موضوعية: | Science & Technology, Physical Sciences, Astronomy & Astrophysics, atmospheric effects, methods: data analysis, methods: observational, MICROWAVE BACKGROUND EXPERIMENTS, COMPONENT SEPARATION, FLUCTUATIONS, POLARIZATION, TURBULENCE, SITES, NOISE, astro-ph.IM, astro-ph.CO, 0201 Astronomical And Space Sciences, 0305 Organic Chemistry, 0306 Physical Chemistry (Incl. Structural) |
| الوصف: | Atmosphere is one of the most important noise sources for ground-based cosmic microwave background (CMB) experiments. By increasing optical loading on the detectors, it amplifies their effective noise, while its fluctuations introduce spatial and temporal correlations between detected signals. We present a physically motivated 3D-model of the atmosphere total intensity emission in the millimeter and sub-millimeter wavelengths. We derive a new analytical estimate for the correlation between detectors time-ordered data as a function of the instrument and survey design, as well as several atmospheric parameters such as wind, relative humidity, temperature and turbulence characteristics. Using an original numerical computation, we examine the effect of each physical parameter on the correlations in the time series of a given experiment. We then use a parametric-likelihood approach to validate the modeling and estimate atmosphere parameters from the polarbear-i project first season data set. We derive a new 1.0% upper limit on the linear polarization fraction of atmospheric emission. We also compare our results to previous studies and weather station measurements. The proposed model can be used for realistic simulations of future ground-based CMB observations. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 0004-637X |
| العلاقة: | Astrophysical Journal; http://hdl.handle.net/10044/1/60853Test; https://dx.doi.org/10.1088/0004-637X/809/1/63Test; ST/J001368/1; N/A; ST/K001051/1 |
| DOI: | 10.1088/0004-637X/809/1/63 |
| الإتاحة: | https://doi.org/10.1088/0004-637X/809/1/63Test http://hdl.handle.net/10044/1/60853Test |
| حقوق: | © 2015 The American Astronomical Society. All rights reserved. |
| رقم الانضمام: | edsbas.7CBD4791 |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 0004637X |
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| DOI: | 10.1088/0004-637X/809/1/63 |