FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1990482807> ?p ?o ?g. }

• W1990482807 endingPage "038" @default.
• W1990482807 startingPage "038" @default.
• W1990482807 abstract "The blackbody spectrum of CMB was created in the blackbody photosphere at redshifts z≳2 × 106. At these early times, the Universe was dense and hot enough that complete thermal equilibrium between baryonic matter (electrons and ions) and photons could be established on time scales much shorter than the age of the Universe. Any perturbation away from the blackbody spectrum was suppressed exponentially. New physics, for example annihilation and decay of dark matter, can add energy and photons to CMB at redshiftsz≳105 and result in a Bose-Einstein spectrum with a non-zero chemical potential (μ). Precise evolution of the CMB spectrum around the critical redshift of z ≃ 2 × 106 is required in order to calculate the μ-type spectral distortion and constrain the underlying new physics. Although numerical calculation of important processes involved (double Compton process, comptonization and bremsstrahlung) is not difficult with present day computers, analytic solutions are much faster and easier to calculate and provide valuable physical insights. We provide precise (better than 1%) analytic solutions for the decay of μ, created at an earlier epoch, including all three processes, double Compton, Compton scattering on thermal electrons and bremsstrahlung in the limit of small distortions. This is a significant improvement over the existing solutions with accuracy ∼ 10% or worse. We also give a census of important sources of energy injection into CMB in standard cosmology. In particular, calculations of distortions from electron-positron annihilation and primordial nucleosynthesis illustrate in a dramatic way the strength of the equilibrium restoring processes in the early Universe. Finally, we point out the triple degeneracy in standard cosmology, i.e., the μ and ydistortions from adiabatic cooling of baryons and electrons, Silk damping and annihilation of thermally produced WIMP dark matter are of similar order of magnitude ( ∼ 10−8–10−10)." @default.
• W1990482807 created "2016-06-24" @default.
• W1990482807 creator A5024785417 @default.
• W1990482807 creator A5072763091 @default.
• W1990482807 date "2012-06-27" @default.
• W1990482807 modified "2023-10-17" @default.
• W1990482807 title "Creation of the CMB spectrum: precise analytic solutions for the blackbody photosphere" @default.
• W1990482807 cites W1673838140 @default.
• W1990482807 cites W1973877957 @default.
• W1990482807 cites W1975759878 @default.
• W1990482807 cites W1975971676 @default.
• W1990482807 cites W1978497724 @default.
• W1990482807 cites W1988675426 @default.
• W1990482807 cites W1992830702 @default.
• W1990482807 cites W1995962607 @default.
• W1990482807 cites W1999909907 @default.
• W1990482807 cites W2002002160 @default.
• W1990482807 cites W2002185357 @default.
• W1990482807 cites W2004250079 @default.
• W1990482807 cites W2008264489 @default.
• W1990482807 cites W2029791502 @default.
• W1990482807 cites W2030512947 @default.
• W1990482807 cites W2035877537 @default.
• W1990482807 cites W2039326357 @default.
• W1990482807 cites W2049127523 @default.
• W1990482807 cites W2051390416 @default.
• W1990482807 cites W2052306133 @default.
• W1990482807 cites W2055458628 @default.
• W1990482807 cites W2060084909 @default.
• W1990482807 cites W2063133723 @default.
• W1990482807 cites W2065284937 @default.
• W1990482807 cites W2068815585 @default.
• W1990482807 cites W2070968852 @default.
• W1990482807 cites W2073412085 @default.
• W1990482807 cites W2084872196 @default.
• W1990482807 cites W2089224200 @default.
• W1990482807 cites W2147875900 @default.
• W1990482807 cites W2148120948 @default.
• W1990482807 cites W2148711716 @default.
• W1990482807 cites W2160902691 @default.
• W1990482807 cites W2173062224 @default.
• W1990482807 cites W2273767255 @default.
• W1990482807 cites W2597148250 @default.
• W1990482807 cites W3041586415 @default.
• W1990482807 cites W3098385861 @default.
• W1990482807 cites W3099119831 @default.
• W1990482807 cites W3103441875 @default.
• W1990482807 cites W3103659774 @default.
• W1990482807 cites W3104268307 @default.
• W1990482807 cites W3105502369 @default.
• W1990482807 cites W3106449272 @default.
• W1990482807 doi "https://doi.org/10.1088/1475-7516/2012/06/038" @default.
• W1990482807 hasPublicationYear "2012" @default.
• W1990482807 type Work @default.
• W1990482807 sameAs 1990482807 @default.
• W1990482807 citedByCount "60" @default.
• W1990482807 countsByYear W19904828072012 @default.
• W1990482807 countsByYear W19904828072013 @default.
• W1990482807 countsByYear W19904828072014 @default.
• W1990482807 countsByYear W19904828072015 @default.
• W1990482807 countsByYear W19904828072016 @default.
• W1990482807 countsByYear W19904828072017 @default.
• W1990482807 countsByYear W19904828072018 @default.
• W1990482807 countsByYear W19904828072019 @default.
• W1990482807 countsByYear W19904828072020 @default.
• W1990482807 countsByYear W19904828072022 @default.
• W1990482807 countsByYear W19904828072023 @default.
• W1990482807 crossrefType "journal-article" @default.
• W1990482807 hasAuthorship W1990482807A5024785417 @default.
• W1990482807 hasAuthorship W1990482807A5072763091 @default.
• W1990482807 hasBestOaLocation W19904828072 @default.
• W1990482807 hasConcept C109214941 @default.
• W1990482807 hasConcept C121332964 @default.
• W1990482807 hasConcept C125860484 @default.
• W1990482807 hasConcept C127592171 @default.
• W1990482807 hasConcept C153385146 @default.
• W1990482807 hasConcept C157909335 @default.
• W1990482807 hasConcept C159317903 @default.
• W1990482807 hasConcept C166126730 @default.
• W1990482807 hasConcept C16743098 @default.
• W1990482807 hasConcept C172790937 @default.
• W1990482807 hasConcept C201941533 @default.
• W1990482807 hasConcept C207297109 @default.
• W1990482807 hasConcept C26405456 @default.
• W1990482807 hasConcept C33024259 @default.
• W1990482807 hasConcept C4397270 @default.
• W1990482807 hasConcept C44870925 @default.
• W1990482807 hasConcept C61203554 @default.
• W1990482807 hasConcept C62520636 @default.
• W1990482807 hasConcept C81302155 @default.
• W1990482807 hasConcept C84999194 @default.
• W1990482807 hasConcept C85725439 @default.
• W1990482807 hasConcept C98444146 @default.
• W1990482807 hasConceptScore W1990482807C109214941 @default.
• W1990482807 hasConceptScore W1990482807C121332964 @default.
• W1990482807 hasConceptScore W1990482807C125860484 @default.
• W1990482807 hasConceptScore W1990482807C127592171 @default.
• W1990482807 hasConceptScore W1990482807C153385146 @default.

• next