66 citations · 529 across the 24 of their papers we have counts for
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An analytical approximation of the luminosity distance in flat cosmologies with a cosmological constant
Masaru Adachi, Masumi Kasai
We present an analytical approximation formula for the luminosity distance in spatially flat cosmologies with dust and a cosmological constant. Apart from the overall factor, the e…
Perturbative Approach to the Gravitational Lensing by a Non-spherically Distorted Compact Object
Amano Saijo, Masumi Kasai
We investigate the gravitational lens effect caused by a non-spherically distorted compact object. The non-spherical property of the gravitational potential is modeled by a quadrup…
An analytical approximation of the growth function in Friedmann-Lemaître universes
Masumi Kasai
We present an analytical approximation formula for the growth function in a spatially flat cosmology with dust and a cosmological constant. Our approximate formula is written simpl…
An analytical approximation of the luminosity distance in flat cosmologies with dark energy
Masaru Adachi, Masumi Kasai
We present an analytical approximation formula for the luminosity distance in spatially flat cosmologies with dust and a cosmological constant. We also show the approximate formula…