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14 papers · 2 filters
Clustering of dark matter in the cosmic web as a probe of massive neutrinos
Mohadese Khoshtinat, Mohammad Ansarifard, Farbod Hassani +1
The large-scale structure of the Universe is distributed in a cosmic web. Studying the distribution and clustering of dark matter particles and halos may open up a new horizon for…
Nearest neighbour analysis as a new probe for fuzzy dark matter
Hamed Manouchehri Kousha, Mohammad Ansarifard, Aliakbar Abolhasani
Fuzzy dark matter (FDM) is a promising candidate for dark matter, characterized by its ultra-light mass, which gives rise to wave effects at astrophysical scales. These effects off…
Revisiting the stochastic QCD axion window: departure from equilibrium during inflation
Vadim Briaud, Kenji Kadota, Shinji Mukohyama +2
If dark matter is made of QCD axions, its abundance is determined by the vacuum expectation value acquired by the axion field during inflation. The axion is usually assumed to foll…
Spherical Collapse Approach for Non-standard Dark Matter Models and Enhanced Early Galaxy Formation in JWST
Zahra Davari, Amjad Ashoorioon, Kazem Rezazadeh
Using the spherical collapse approach, we investigate the impact of two alternative dark matter models, each characterized by distinct non-zero equations of state, one constant and…
Imprint of massive neutrinos on Persistent Homology of large-scale structure
M. H. Jalali Kanafi, S. Ansarifard, S. M. S. Movahed
Exploiting the Persistent Homology technique and its complementary representations, we examine the footprint of summed neutrino mass () in the various density fields simulated…
The NIKA2 Sunyaev-Zeldovich Large Program: Sample and upcoming product public release
L. Perotto, R. Adam, P. Ade +52
The NIKA2 camera operating at the IRAM 30 m telescope excels in high-angular resolution mapping of the thermal Sunyaev-Zeldovich effect towards galaxy clusters at intermediate and…