Inicio > Matemáticas y ciencia > Astronomía, espacio y tiempo > Probing the Early Universe with the CMB Scalar, Vector and Tensor Bispectrum
Probing the Early Universe with the CMB Scalar, Vector and Tensor Bispectrum

Probing the Early Universe with the CMB Scalar, Vector and Tensor Bispectrum

Maresuke Shiraishi

68,32 €
IVA incluido
Disponible
Editorial:
Springer Nature B.V.
Año de edición:
2015
Materia
Astronomía, espacio y tiempo
ISBN:
9784431547167
68,32 €
IVA incluido
Disponible

Selecciona una librería:

  • Librería Samer Atenea
  • Librería Aciertas (Toledo)
  • Kálamo Books
  • Librería Perelló (Valencia)
  • Librería Elías (Asturias)
  • Donde los libros
  • Librería Kolima (Madrid)
  • Librería Proteo (Málaga)
Sobre IBD

The non-Gaussianity in the primordial density fluctuations is a key feature to clarify the early Universe and it has been probed with the Cosmic Microwave Background (CMB) bispectrum. In recent years, we have treated the novel-type CMB bispectra, which originate from the vector- and tensor-mode perturbations and include the violation of the rotational or parity invariance. On the basis of our current works, this thesis provides the general formalism for the CMB bispectrum sourced by the non-Gaussianity in the scalar, vector and tensor-mode perturbations. Applying this formalism, we calculate the CMB bispectra from the two scalars and a graviton correlation and primordial magnetic fields, and then outline new constraints on these magnitudes. Furthermore, this formalism can be easily extended to the cases where the rotational or parity invariance is broken. We also compute the CMB bispectra from the scalar-mode non-Gaussianities with a preferred direction and the tensor-mode non-Gaussianities induced by the parity-violating Weyl cubic terms. Here, we show that these bispectra include unique signals, which any symmetry-invariant models can never produce.

Artículos relacionados

  • 50 Targets for the Mid-Sized Telescope
    John Read
    Written as a follow up to 50 Things to See with a Small Telescope, containing virtually no overlap in content, 50 Targets for the Mid-Sized Telescope introduces the beginner stargazer to an assortment of astronomical wonders. With easy-to-follow star maps, unique for each target, the budding astronomer will explore the universe like never before.Each target has been carefully c...
  • Climate Change and Global Warming - Exposed
    Andrew Johnson
    The weather is something which affects all of us, every day of our lives. It dictates our long and short-term plans. In the UK, the weather is the "default topic" of conversation for strangers and friends alike. Though it has obvious and far reaching importance, most people don't know very much about the weather. These days, they don't take time to observe it and probab...
    Disponible

    13,82 €

  • Archaeoastronomy in East Asia
    Until now, important research on the historical records of comets and meteor showers from China, Japan, and Korea has remained the exclusive preserve of those with expertise in the relevant languages. With a compilation like the present volume the authors hope to ameliorate that situation. Applying the same rigorous selection criteria and style of presentation as in the previou...
  • Night Vision
    Pippa Goldschmidt
    In Night Vision Pippa Goldschmidt writes about outer space and explores its multiple meanings as a place of awe and wonder to a more materialistic site in which scientific ideas are formulated and tested. This book explores space as a location of potential capital where commerce is being developed, leading to a new threatened ’enclosure of the commons’. Goldschmidt posits that ...
    Disponible

    11,26 €

  • Heaven’s Touch
    James B. Kaler
    A breathtaking account of how the surrounding cosmos impacts life on EarthDid you know that as you read these words showers of high-speed particles from exploding stars are raining down on you? As you gaze into the starry sky, you might feel isolated from the Universe around you-but you’re not. This book reveals the startling ways life on Earth is touched by our cosmic environm...
  • The Galactic Supermassive Black Hole
    Fulvio Melia
    Here, one of the world’s leading astrophysicists provides the first comprehensive and logically structured overview of the many ideas and discoveries pertaining to the supermassive black hole at the galactic center known as Sagittarius A*. By far the closest galactic nucleus in the universe, Sagittarius A* alone can provide us with a realistic expectation of learning about the ...
    Disponible

    118,87 €

Otros libros del autor

  • Probing the Early Universe with the CMB Scalar, Vector and Tensor Bispectrum
    Maresuke Shiraishi
    The non-Gaussianity in the primordial density fluctuations is a key feature to clarify the early Universe and it has been probed with the Cosmic Microwave Background (CMB) bispectrum. In recent years, we have treated the novel-type CMB bispectra, which originate from the vector- and tensor-mode perturbations and include the violation of the rotational or parity invariance. On t...