activity
20042019
most citedEffects of a Primordial Magnetic Field on Low and High Multipoles of the CMB

85 citations · 632 across the 21 of their papers we have counts for

collaborators

21 papers

astro-ph.CO2019★ 7 cited

Cosmological Solutions to the Lithium Problem

G. J. Mathews, A. Kedia, N. Sasankan +6

The abundance of primordial lithium is derived from the observed spectroscopy of metal-poor stars in the galactic halo. However, the observationally inferred abundance remains at a…

astro-ph.HE2017★ 37 cited

Cosmic Magnetism in Centimeter and Meter Wavelength Radio Astronomy

Takuya Akahori, Hiroyuki Nakanishi, Yoshiaki Sofue +13

Magnetic field is ubiquitous in the Universe and it plays essential roles in various astrophysical phenomena, yet its real origin and evolution are poorly known. This article revie…

astro-ph.CO2016★ 10 cited

Evolution of the cosmic matter density field with a primordial magnetic field

Dai G. Yamazaki

A cosmological magnetic field affects the time evolution of the cosmic matter density field. The squared Alfven velocity of the cosmic fluid is proportional to an ensemble average…

astro-ph.CO2015★ 1 cited

Constraints on the birth of the universe and origin of cosmic dark flow

G. J. Mathews, M. R. Gangopadhyay, P. Garnavich +4

We summarize three recent efforts to constrain the first few moments of cosmic creation before and during the epoch of inflation. We consider two means to explain a slight dip in t…

astro-ph.CO2014★ 15 cited

Detectability of Cosmic Dark Flow in the Type Ia Supernova Redshift-Distance Relation

G. J. Mathews, B. Rose, P. Garnavich +2

We re-analyze the detectability of large scale dark flow (or local bulk flow) with respect to the CMB background based upon the redshift-distance relation for Type Ia supernovae (S…

astro-ph.CO2014★ 33 cited

Cosmological solutions to the Lithium problem: Big-bang nucleosynthesis with photon cooling, -particle decay and a primordial magnetic field

Dai G. Yamazaki, Motohiko Kusakabe, Toshitaka Kajino +2

The Li abundance calculated in BBN with the baryon-to-photon ratio fixed from fits to the CMB power spectrum is inconsistent with the observed lithium abundances on the surface…