activity
20192025
most citedThe IA Guide: A Breakdown of Intrinsic Alignment Formalisms

33 citations · 97 across the 8 of their papers we have counts for

collaborators

8 papers

astro-ph.CO2025★ 11 cited

Two per cent measurement of from Cepheids alone

Richard Stiskalek, Harry Desmond, Eleni Tsaprazi +4

One of the most pressing problems in current cosmology is the cause of the Hubble tension. We revisit a two-rung distance ladder, composed only of Cepheid periods and magnitudes, a…

astro-ph.CO2025

Euclid preparation. Establishing the quality of the 2D reconstruction of the filaments of the cosmic web with DisPerSE using Euclid photometric redshifts

Euclid Collaboration, N. Malavasi, F. Sarron +313

Cosmic filaments are prominent structures of the matter distribution of the Universe. Modern detection algorithms are an efficient way to identify filaments in large-scale observat…

astro-ph.CO2023★ 33 cited

The IA Guide: A Breakdown of Intrinsic Alignment Formalisms

Claire Lamman, Eleni Tsaprazi, Jingjing Shi +4

We summarize common notations and concepts in the field of Intrinsic Alignments (IA). IA refers to physical correlations involving galaxy shapes, galaxy spins, and the underlying c…

astro-ph.CO2023

LyAl-Net: A high-efficiency Lyman- forest simulation with a neural network

Chotipan Boonkongkird, Guilhem Lavaux, Sebastien Peirani +3

The inference of cosmological quantities requires accurate and large hydrodynamical cosmological simulations. Unfortunately, their computational time can take millions of CPU hours…

astro-ph.CO2023★ 4 cited

Higher-order statistics of the large-scale structure from photometric redshifts

Eleni Tsaprazi, Jens Jasche, Guilhem Lavaux +1

The large-scale structure is a major source of cosmological information. However, next-generation photometric galaxy surveys will only provide a distorted view of cosmic structures…

astro-ph.CO2021★ 22 cited

Field-level inference of galaxy intrinsic alignment from the SDSS-III BOSS survey

Eleni Tsaprazi, Nhat-Minh Nguyen, Jens Jasche +2

As a large-scale overdensity collapses, it affects the orientation and shape of galaxies that form, by exerting tidal shear along their axes. Therefore, the shapes of elliptical ga…

astro-ph.CO2021★ 10 cited

The large-scale environment of thermonuclear and core-collapse supernovae

Eleni Tsaprazi, Jens Jasche, Ariel Goobar +11

The new generation of wide-field time-domain surveys has made it feasible to study the clustering of supernova (SN) host galaxies in the large-scale structure (LSS) for the first t…

astro-ph.CO2019★ 17 cited

Relativistic approach to the kinematics of large-scale peculiar motions

Eleni Tsaprazi, Christos G. Tsagas

We consider the linear kinematics of large-scale peculiar motions in a perturbed Friedmann universe. In so doing, we take the viewpoint of the "real" observers that move along with…