Research
PhD candidate in physics, working on gravitation and cosmology.
Publications
Abstract
We have studied the cosmic microwave background (CMB) map looking for features beyond cosmological isotropy. We began by tiling the CMB variance maps (which are produced by different smoothing scales) with stripes of different sizes along the most prominent dipole direction. We were able to confirm previous findings regarding the significance of the dipole. Furthermore, we discovered that some of the higher multipoles exhibit significance comparable to the dipole that naturally depends on the smoothing scales. In the end, we discussed this result having an eye on the look-elsewhere-effect. We believe our results may indicate an anomalous patch in the CMB sky that warrants further investigation.
Talks
Higher multipole anomalies in the CMB
DSU2023 (The Dark Side of the Universe), Kigali, Rwanda. 10-14 July 2023.
Code and datasets
patch_cosmic_parameters
Python package and notebooks that fit the cosmological parameters to the Planck TT, TE and EE power spectra on the full sky and on 12 separate patches of it, to see whether different parts of the sky agree.
cosmic_projection_and_aberration
Python code to add the Doppler aberration to a HEALPix sky map and to project maps: it resamples a deformed sphere onto a standard HEALPix grid with area weights and cuts out flat gnomonic patches, with an optional GPU backend.
rtl-tex-editor
A local TeX and Markdown editor for right-to-left languages such as Persian: lines mix directions correctly, LaTeX commands and math stay left-to-right, and there is a live PDF preview with two-way SyncTeX.