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Minkowski Functionals of SDSS-III BOSS : Hints of Possible Anisotropy in the Density Field?
Stephen Appleby, Changbom Park, Pratyush Pranav +4
We present measurements of the Minkowski functionals extracted from the SDSS-III BOSS catalogs. After defining the Minkowski functionals, we describe how an unbiased reconstruction…
The geometrical meaning of statistical isotropy of smooth random fields in two dimensions
Pravabati Chingangbam, Priya Goyal, K. P. Yogendran +1
We revisit the geometrical meaning of statistical isotropy that is manifest in excursion sets of smooth random fields in two dimensions. Using the contour Minkowski tensor, $\W_1$,…
Well-Tempered Minkowski Solutions in Teleparallel Horndeski Theory
Reginald Christian Bernardo, Jackson Levi Said, Maria Caruana +1
Well-tempering stands among the few classical methods of screening vacuum energy to deliver a late-time, low energy vacuum state. We build on the class of Horndeski models that adm…
Well-tempered teleparallel Horndeski cosmology: a teleparallel variation to the cosmological constant problem
Reginald Christian Bernardo, Jackson Levi Said, Maria Caruana +1
Well-tempering is a promising classical method of dynamically screening an arbitrarily large vacuum energy and generating a late-time, low energy de Sitter vacuum state. In this pa…
Cosmological Parameter Estimation from the Two-Dimensional Genus Topology -- Measuring the Expansion History using the Genus Amplitude as a Standard Ruler
Stephen Appleby, Changbom Park, Sungwook E. Hong +3
We measure the genus of the galaxy distribution in two-dimensional slices of the SDSS-III BOSS catalog to constrain the cosmological parameters governing the expansion history of t…
Prospects of constraining reionization model parameters using Minkowski tensors and Betti numbers
Akanksha Kapahtia, Pravabati Chingangbam, Raghunath Ghara +2
We explore the possibility of constraining model parameters of the Epoch of Reionization (EoR) from 21cm brightness temperature maps, using a combination of morphological descripto…