Published October 1, 2018 | Version v1
Journal article

Reconciling low multipole anomalies and reheating in single field inflationary models

  • 1. Department of Physics, Indian Institute of Technology Bombay, Mumbai-400076 (India)

Description

Reheating phase of inflationary Universe can be modeled by parameters Treh, w ¯ reh and Nreh, which can be constrained by the scalar spectral amplitude As and the scalar spectral index ns. On the other hand the low multipole anomalies in the CMB can be modeled by suitable features in the inflaton potential. We show that the parameters of these features in the inflaton potential provide additional constraints on the reheating parameters. For several single field models we find that the reheating parameters are substantially more constrained by the requirement of compatibility with the proposed explanation for low multipole anomalies.

Availability note (English)

Available from http://dx.doi.org/10.1088/1475-7516/2018/10/018

Additional details

Publishing Information

Journal Title
Journal of Cosmology and Astroparticle Physics
Journal Volume
2018
Journal Issue
10
Journal Page Range
p. 018
ISSN
1475-7516

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
51057515
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
AMPLITUDES; INFLATIONARY UNIVERSE; INFLATONS; LIMITING VALUES; MULTIPOLES; SCALARS; SPECTRA
Descriptors DEC
COSMOLOGICAL MODELS; ELEMENTARY PARTICLES; MATHEMATICAL MODELS; POSTULATED PARTICLES