THE PRIMEVAL ATMOSPHERE
نویسندگان
چکیده
منابع مشابه
More from the Primeval Forest
two octavo volumes; as this has been translated into English, we gather that it is a book of some consequence. Yet, he has dragged himself away from all his interests in Europe and devoted a valuable part of his life to medical missionary work in equatorial Africa. Such a man must be either a restless crank or a true altruist, and, as it is obvious from his writings that Dr. Schweitzer is not t...
متن کاملPrimeval symmetry breaking
A detailed examination of the Killing equations in Robertson– Walker coordinates shows how the addition of matter and/or radiation to a de Sitter Universe breaks the symmetry generated by four of its Killing fields. The product U = a2 Ḣ of the squared scale parameter by the time-derivative of the Hubble function encapsulates the relationship between the two cases: the symmetry is maximal when U...
متن کاملPrimeval Corrections to the CMB Anisotropies
We show that deviations of the quantum state of the inflaton from the thermal vacuum of inflation may leave an imprint in the CMB anisotropies. The quantum dynamics of the inflaton in such a state produces corrections to the inflationary fluctuations, which may be observable. Because these effects originate from IR physics below the Planck scale, they will dominate over any trans-Planckian impr...
متن کاملThe Spectral Appearance of Primeval Galaxies
The current and forthcoming observations of large samples of high–redshift galaxies selected according to various photometric and spectroscopic criteria can be interpreted in the context of galaxy formation, by means of models of evolving spectral energy distributions (SEDs). We hereafter present stardust which gives synthetic SEDs from the far UV to the submm wavelength range. These SEDs are d...
متن کاملUV Properties of Primeval Galaxies
The problem of UV properties of primeval galaxies is briefly assessed from the theoretical point of view discussing its impact on the definition of the cosmological model.
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ژورنال
عنوان ژورنال: Science
سال: 1906
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.23.581.271