Efficient evaluation of angular power spectra and bispectra
نویسندگان
چکیده
منابع مشابه
Rapid Calculation of Theoretical Cmb Angular Power Spectra
We have developed a fast method for predicting the angular power spectrum, Cl, of the cosmic microwave background given cosmological parameters and a primordial power spectrum of perturbations. After pre–computing the radiation temperature and gravitational potential transfer functions over a small sub–space of the total model parameter space, the rest of the model space (six or more cosmologic...
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The angular power spectra of the infrared maps obtained by the DIRBE (Diffuse InfraRed Background Experiment) instrument on the COBE1 satellite have been obtained by two methods: the Hauser-Peebles method previously applied to the DMR maps, and by Fourier transforming portions of the all-sky maps projected onto a plane. The two methods give consistent results, and the power spectrum of the high...
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aDipartimento di Fisica G. Occhialini, Università di Milano, Bicocca bI.N.F.N., Sezione di Milano, Via Celoria 16, I-20133 Milano, Italy cI.Te.S.R.E.-C.N.R., Via P. Gobetti 101, I-40129 Bologna, Italy dDipartimento di Fisica, Università di Firenze, Via S. Marta 3, I-50139 Firenze, Italy eDipartimento di Astronomia, Università di Bologna, Via Ranzani 1, I-40127 Bologna, Italy fDepartment of Phys...
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شناسایی مخاطرات در واحد 400 پالایشگاه گاز پارسیان. در این پروزه با بکارگیری از تکنیک hazop به شناسا یی مخاطرات ، انحرافات ممکن و در صورت لزوم ارایه راهکارهای مناسب جهت افزایش ایمنی فرا یند پرداخته میگردد. شرایط عملیاتی مخاطره آمیز نظیر فشار و دمای بالا و وجود ترکیبات مختلف سمی و قابل انفجار در واحدهای پالایش گاز، ضرورت توجه به موارد ایمنی در این چنین واحدهایی را مشخص می سازد. مطالعه hazop یک ر...
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ژورنال
عنوان ژورنال: Journal of Cosmology and Astroparticle Physics
سال: 2017
ISSN: 1475-7516
DOI: 10.1088/1475-7516/2017/11/054