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pro vyhledávání: '"Korkidis, Giorgos"'
Autor:
Korkidis, Giorgos, Pavlidou, Vasiliki
Density profiles are important tools in galaxy cluster research, offering insights into clusters dynamical states and their relationship with the broader Universe. While these profiles provide valuable information about the matter content of the Univ
Externí odkaz:
http://arxiv.org/abs/2404.11183
Autor:
Korkidis, Giorgos, Pavlidou, Vasiliki
Publikováno v:
A&A 690, A71 (2024)
The average matter density within the turnaround scale, which demarcates where galaxies shift from clustering around a structure to joining the expansion of the Universe, is an important cosmological probe. However, a measurement of the mass enclosed
Externí odkaz:
http://arxiv.org/abs/2402.18634
The mean matter density within the turnaround radius, which is the boundary that separates a nonexpanding structure from the Hubble flow, was recently proposed as a novel cosmological probe. According to the spherical collapse model, the evolution wi
Externí odkaz:
http://arxiv.org/abs/2304.14434
Publikováno v:
A&A 638, L8 (2020)
Spherical collapse predicts that a single value of the turnaround density (average matter density within the scale on which a structure detaches from the Hubble flow) characterizes all cosmic structures at the same redshift. It has been recently show
Externí odkaz:
http://arxiv.org/abs/2004.04395
Autor:
Korkidis, Giorgos, Pavlidou, Vasiliki, Tassis, Konstantinos, Ntormousi, Evangelia, Tomaras, Theodore N., Kovlakas, Konstantinos
Publikováno v:
A&A 639, A122 (2020)
We use N-body simulations to examine whether a characteristic turnaround radius, as predicted from the spherical collapse model in a $\rm {\Lambda CDM}$ Universe, can be meaningfully identified for galaxy clusters, in the presence of full three-dimen
Externí odkaz:
http://arxiv.org/abs/1912.08216
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