Zobrazeno 1 - 10
of 148
pro vyhledávání: '"DOUSPIS, MARIAN"'
Autor:
Gallo, Stefano, Aghanim, Nabila, Gouin, Céline, Eckert, Dominique, Douspis, Marian, Paste, Jade, Bonnaire, Tony
Publikováno v:
A&A 692, A200 (2024)
Filaments connected to galaxy clusters are crucial environments to study the building up of cosmic structures as they funnel matter towards the clusters' deep gravitational potentials. Identifying gas in filaments is a challenge, due to their lower d
Externí odkaz:
http://arxiv.org/abs/2407.10518
Autor:
Jung, Gabriel, Aghanim, Nabila, Sorce, Jenny, Seidel, Benjamin, Dolag, Klaus, Douspis, Marian
Publikováno v:
A&A 692, A180 (2024)
The full sky measurements of the Cosmic Microwave Background (CMB) temperature anisotropies by $\textit{WMAP}$ and $\textit{Planck}$ have highlighted the presence of several unexpected isotropy-breaking features on the largest angular scales. In this
Externí odkaz:
http://arxiv.org/abs/2406.11543
Publikováno v:
A&A 686, A15 (2024)
Galaxy cluster number counts are an important probe to constrain cosmological parameters. One of the main ingredients of the analysis, along with accurate estimates of the clusters' masses, is the selection function, and in particular the completenes
Externí odkaz:
http://arxiv.org/abs/2309.11544
Publikováno v:
A&A 674, A222 (2023)
Considering possible solutions to the $S_8$ tension between the Planck cosmic microwave background (CMB) measurement and low-redshift probes, we extended the standard $\Lambda$CDM cosmological model by including decay of dark matter (DDM). We first t
Externí odkaz:
http://arxiv.org/abs/2301.03939
Autor:
Heinämäki, Pekka, Teerikorpi, Pekka, Douspis, Marian, Nurmi, Pasi, Einasto, Maret, Gramann, Mirt, Nevalainen, Jukka, Saar, Enn
Publikováno v:
A&A 668, A37 (2022)
Generally the dynamical state of superclusters is poorly known. We study properties of superclusters and select a sample of quasi-spherical superclusters, the dynamics of which can be studied using the $\Lambda$ significance diagram. We extracted our
Externí odkaz:
http://arxiv.org/abs/2210.13294
Publikováno v:
2022 A&A Volume667 A161
Using the publicly available eROSITA Final Equatorial Depth Survey (eFEDS) data, we detected the stacked X-ray emissions at the position of 463 filaments at a significance of 3.8 sigma based on the combination of all energy bands. In parallel, we fou
Externí odkaz:
http://arxiv.org/abs/2206.00084
Publikováno v:
A&A 662, A122 (2022)
Recent results of ground-based telescopes, giving high-quality measurements of the CMB temperature power spectrum on small scales motivate the need for an accurate model of foregrounds, which dominate the primary signal at these multipoles. In a prev
Externí odkaz:
http://arxiv.org/abs/2202.08698
The gas mass fraction in galaxy clusters is a convenient tool to use in the context of cosmological studies. Indeed this quantity allows to constrain the universal baryon fraction $\Omega_b/\Omega_m$, as well as other parameters like the matter densi
Externí odkaz:
http://arxiv.org/abs/2111.01490
Small scale CMB angular power spectrum contains not only primordial CMB information but also many contaminants coming from secondary anisotropies. Most of the latter depend on the cosmological model but are often marginalised over. We propose a new a
Externí odkaz:
http://arxiv.org/abs/2111.01639
We constructed a new all-sky Compton parameter map (y-map) of the thermal Sunyaev-Zel'dovich (tSZ) effect from the 100 to 857 GHz frequency channel maps delivered within the Planck data release 4. The improvements in terms of noise and systematic eff
Externí odkaz:
http://arxiv.org/abs/2110.08880